DESIGN PROCESSES -Design Handling –Issues of Design 32

Post 714 by Gautam Shah

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Designs occur as a concept, idea or theme, expressed in the form explanation, process of creation, or representations like drawings, models, surrogates, samples, digital images. All Designs are documented briefs for realization. Design also carries a meaning of forming a pattern. Creations by artists or craftsperson may occur as experiment or improvisation, and are not truly designs. Designs need not be realized as a physical reality. A design can be a strategy for operational management or conducting services.

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For a designer, knowing means to achieve a specific end are very important. Proper record keeping of all design processes helps here. It is very difficult to register dreams, intuitions or inspirations. One needs to recall them in a different time and space context. All intuitions or inspirations, however, absurd, have some physical context of origin. Designers unlike a lay craftsperson or artist, are trained and disciplined, to record their design related thought processes. The thought processes thin out or obliterate completely with passage of time, so must be recorded as early as possible.

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Design Processes for a Lay person and a Designer are very different. A creative lay person simply goes on creating (assembling, modifying) things without being aware why certain things manifest in a certain manner. For a creative person the end is important and means irrelevant. A Designer, on the other hand, tries to discover the logic behind it. Selection of an element may be initially intuitive, but there is always a later effort to justify the actions intellectually. A designer justifies all actions like selection, rejection, inclusion or composition of various elements. In doing so the designer refines the intellectual prowess by equipping with an experience that is:

  • definable
  • repeatable or recreate-able as a whole or in selective parts
  • recordable -its perceptive aspects
  • transferable to another person
  • increase or decrease its intensity (time scale) and diffuse or intensify its concentration (space scale).

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For these (above) purposes Designers rely on documents. The expertise of documenting all aspect of design helps a designer to handle extensive or more complex intuitions or inspirations. Personal and impulsively formed systems tend to be Holistic, with few or no recognizable sub systems and being very unique require more extensive definitions and so complex documentation. On the other hand, planned systems, whether personal or evolved through multilateral effort, and over a longer period of maturation, consist of many sub sets. Planned systems have subsets that are already formed by vendors and well prescribed.

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Documents are personal method of transmitting a design to stage of realization. In large projects designs are transmitted to professional executors and in different locations. Design transmission and interpretation, require ‘culture’ of protocols. Many such protocols are not defined but accepted as the traditions. Such traditions make a Design transmission and interpretation fast, but are prone to errors.

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Designers create both, Closed and open-ended systems. Closed Ended Systems are intentionally made holistic. Closed-ended systems are planned to protect the intellectual rights of the innovators. Closed systems are improvise-able only by the author or inventor, whose capacity to update it continuously is finite. Proprietary computer software may be used by a licensee, but its code remains restricted. The closed systems cannot be dissected for inspection or repair, the form is compact and rigid. Closed ended system need nodes of connectivity or gateways to be useful. Such gateways may or may not allow access to others. Such systems become irrelevant as soon as an open-ended option is available. In the world of mutual dependency, closed systems cannot survive much longer.

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Open-ended Systems evolve from multilateral effort or multi trial endeavours. Where large number of people are involved in design and execution, and where these processes are likely to take place at different time and locations, the system automatically becomes Open ended. The subsystems usually offered by venders, to be replaceable, are conceived as substantially independent systems, by their vendors. Open-ended systems have a ‘design-architecture’, formed through common measurements, materials and procedures. To allow these, open-ended systems have a skeleton type frame structure (infrastructure) and fit-in modules. Open-ended systems have built-in reserves or additional safe capacities, often wasteful, but such reserves make systems more persistent. Open-ended systems allow replacements, improvisations and up-gradations of their subsystems and components.

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UNDERSTANDING DESIGN FEES

Post 713 -by Gautam Shah

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Designers often help their clients to acquire or dispose off entities in their completely prepared form. When the transaction originates at producers’ end, it is little above the cost, at a price. Price, reflects the value a producer attaches to an entity. Later transactions may not in any manner relate to an entity’s cost.

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For a thing to have a value, it must be transferable. A latent value becomes potent when it is perceived that someone needs the entity in some time and space, for a utilitarian or hypothetical purpose. A demand for a perishable commodity, if it, does not occur within the life span, is irrelevant. Similarly demand for something in a far off place cannot be satisfied, due to transportation hazards and handling problems. Air has a lot of utility but is not scarce. Rotten eggs may be scarce, but hardly have any utility. Friendship is very useful and scarce, but is not transferable or marketable.

Historic cost of creating a painting may be few drops of colour, a canvas and artists’ few moments. But once the fact is accomplished, the painting gains a very high value due to its extra ordinarily high relevance to the society. Relevance of a product in terms of its utility is (more) likely to degenerate over a period of time, but its value may appreciate or depreciate depending on its relevance to the owner or the society.

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Prices are effected in money. Prices go up or down depending on the fall or rise in the (universal) value of the money. Any change in money (monetary value) affects the prices of all things across the board. Value of a thing, however, is specific. There cannot be a general fall or rise in value of all things. Value of a thing goes up, when we can acquire or aspire for more or superior things in exchange. Value of a thing goes down, when we can acquire or hope for less or inferior things in exchange. Value is relative, referred in terms of something else.

Value of a thing, cannot be always measured in money. Value has many different connotations, typically, it has relevance in terms of, emotions, remembrances, associations, ageing, maturity, heritage, rarity, ecological, environmental, social, etc.

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Valuation, in functional sense, is done to determine what one would gain by acquiring, or forgo by disposing the item, but not necessarily doing so. Value of a product means an addition or deduction to wealth, Cost at the moment of transfer may or may not reflect the value of an item, but it helps in a better judgement of the value.

A rare painting or an antique may have an indeterminable cost, but will have a probable value. Value could be several times more or less than the actual cost of the item. Value is considered to be the true worth of an item, more lasting, but not necessarily reliable. Cost and price are very realistic and reliable, but not always representative of the true worth of the item. Both, perhaps, are required to gain a full insight of the situation.

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Monetary versus Non-Monetary Valuations

Valuations are of two types: Monetary and Non-Monetary. Monetary valuations are not very different from costing exercises. Value of a thing, cannot be always measured in money. Though here utility, desirability, scarcity, availability and marketability etc. of an item are assessed in monetary terms rather than market equivalent costs of such items.

Valuations of non-monetary type are made to check adherence to values, customs, traditions, ethos, rules regulations, laws, etc. Greater adherence to these issues results into higher value realization for the product. Often negative or repulsive aspects of an entity, such as Hitler’s memorabilia, black magic tools, due to their rarity, invite a connoisseur’s favour. Non-monetary valuations have a relevance only to people who are concerned with it in some way. Non-monetary valuations based on one aspect or few concerns are not very useful, desirable, or even reliable. Non-monetary valuations based on too many aspects are not comparable, so must be scaled into some economic or monetary component. These makes, a valuation, very complicated process.

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Costing versus Valuation

Costing is a logical (mathematical) process, and any technically proficient person can carry it out. Costing process must always remain justifiable, and requires many exact inputs, including latest market costs etc. Valuations, however, involve many hypothetical judgments, are very subjective, and so may not seem rational. It is the experience of the valuer that imparts some degree of objectivity and also reliability to the valuation. Valuation on the other hand is a subjective judgment, and no explanations may be asked for.

Costing helps a designer in planning, budgeting and auditing the expenditures. Valuation is used to confirm or justify expenditures, indicate non monetary savings, and to convince a client for quandary options.

 

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Design Practice and Cost Determination Methods

Designers choose entities, increase or decrease their usage by predicting the costs. Designers develop their own cost determination methods, appropriate for the jobs they handle, and for types of items specified in their projects. Input data like market rates for materials, parts, components, labour etc. are continuously updated or sought as and when estimates are to be prepared. Updating feedback is also available through the historic estimates conducted on completion of a project.

In design offices predictive cost analysis is made through Rate analysis. Average prices of all commonly used materials, operations, etc., are collected routinely, reformatted and stored. These are presumed as standard rates, and form the basis for the cost analysis. To simplify the process of cost analysis, number of items and their individual rates or prices are reduced by approximation (through definition of a factor for variation) in quantity and quality.

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Routine jobs and jobs with substantial intellectual effort

Routine jobs have a determinable cost (and by adding a customary margin of profit, etc. one can derive the price). However, jobs with substantial intellectual effort accomplish more than the cost of implementation. So, dilemmas occur, should one charge a professional fee on the total cost of the job, or value accruing out of the job? Authors of creative efforts must know how to value their accomplishments, and thereby demand a fair compensation for it. Designers need to know both the cost and value of their professional services.

Cost versus Value for Designers

The understanding of Cost versus Value of an entity helps a designer at TWO distinct levels:

1 Determination of Fees: Cost-based and Value-based

2 Helping a client for the value-assessment of their possessions.

Screenshot_2020-02-29 Mares and foals with an unfigured background (England,1762) - George Stubbs (1724 - 1806)

Cost-based Fees

Design practice follows age-old traditions of Architectural practice. Jobs are generally executed by appointed contractors or selected vendors. These third party (away from the Architect and the Client) business entities present an invoice, which reflects the nearly true cost of the job. Architects base their fees on this foundation after adding certain percentage amount to account for miscellaneous expenses, (such as on power, water, etc.). Substantial part of Designer’s work follows a similar path.

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Value-based Fees

Value-based Fees are charged for jobs like renovation, extension, addition, conservation, etc. that make substantial change to the existing environment, upgrading the commercial value, or advantages deriving out of it. A unique concept that costs very little to implement, provides a substantial benefit to the client. Should one charge a fee on the cost of a job or on the value of the completed job? Here determining an appropriate cost base for fees is very difficult.

Value Assessment of Possessions

On some sites there are pre-existing structures which are to be only reformed or reused. The design cost of continuing or protecting such structures is difficult to compute, and so must be value-based. Cost of works or supplies by third party vendors and contractors are accountable, but items supplied by the Clients from the existing stock are difficult to document. Cost of Retained Structures, Antiques, Curios, used in a project are often indeterminable, instead their values, if available need to be used. On sites where several Professionals operate simultaneously, exclusive authorship to a creation is disputable, so cost of a patent idea is disputable.

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Cost Plus Fees

Fees for very complex jobs, or jobs that are unique, and without any precedents are very difficult to predefine. A Client wishes to see the job properly done, and the Professional wants a guaranteed, but a fair amount of income. Such jobs are executed on Cost Plus Basis.

The office work of the professional and the site work of the project, both are executed in a very transparent setup. All the expenses at the Processional’s Office (salaries, stationary, conveyance, rents, service charges for equipments, etc.) and at the Project Site (on raw materials (stationary), wages, and salaries, rents for equipments, conveyance, postal and telecommunication charges, taxes, etc.) are well monitored, documented and audited. The Professional is then allowed a percentage over the Audited Costs.

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BRIGHTNESS and COLOUR

Post 712 -by Gautam Shah

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1 Col-18 A ray of Light 32215719528_70dbfd2d22

Brightness and Colour have mutual dependence. Greater brightness leads to sharper visual perception and the colour (spectrum) affects the perceived level of brightness. Physiological and environmental conditions alter the perception of brightness as well as colours. Noon time daylight conditions are accepted as the optimal brightness condition for experiencing the colour. But this condition of high brightness can reduce the contrast between two near by objects and so confuse the colour perception.

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Brightness and colour, both are strongly affected by the immediate past experience. Sudden transition from darkness to brightness or one colour to another affects the pupil dilation.

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Brightness and colour relate to reflection from a surface. The quality of a surface, the texture and its grain orientation vis a vis the directions of illumination and observation, affect the perception. Most of the objects reveal their multiple surfaces concurrently but brightness and colour on each of the face seems different. In this scenario the source of illumination (if solar) and observers both vary their position. As a result colour perception is very dynamic phenomenon. In Architecture or Interior design colour matching or determination of brightness is always worrisome affair.

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Next factor is the context in which objects or scenes are observed. The juxtaposition with a lighter background enhances and darker backdrop setting dulls the perception of brightness and colour.

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Colour perception operates at three basic levels, as the capacity of a surface to reflect light, as emission of light from a hot body and the personal capacity to differentiate various colourations. But the conveyance of the ‘colour related experiences’ is even more difficult. The interpretation of colours varies in different setting of locations, cultures and circumstances. Environment and Terrain are two major factors that alter the colour. Environmental conditions like solar brightness, inclination, orientation, cloud-cast conditions, atmospheric refractions, etc. vary depending on the geographic location. These are further attuned by the surface extent, texture, angle and duration of exposure. The terrain offers very pervasive colour context against which everything is observed. The different terrain effects are really not perceived on the site, but experienced through time-space segmented documents like photographs, paintings, videos or movies.

11 Col-8 Contrasting context Dark brown to Black Edouard Manet Olympia Google Art Project Image 3

Charles Sheeler Whiteness Brightness White Sentinels

ART by Edward Hopper Daylight and Artificial light depiction

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The conditions at ground level such as surface colour, wetness, snow, vegetation cover, topography, orientation, man-made and natural features, surroundings, density, reflection (albedo), absorption, altitudes etc. determine the colour quality of light. Since all these surface conditions are very localized, the colour variations are conditioned by them. The buildings in surrounding areas, immediate terrain and water bodies have a bearing on the quality of illumination entering a building.

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Illumination in a space is Natural (daylight, chiefly solar origin), Artificial and often combination of both. Daylight has Four important facets, the illuminance, warmth, colour and the variability. Daylight on an outdoor location is a combination of direct sunlight, diffuse sky radiation, and both of these as reflected from the earth and other objects. The brightness and colour of daylight are governed by the sky conditions, like clouds, fog, smoke, atmospheric pollution, morning and evening twilight zones (when the atmospheric scattering of predawn sunlight takes place).

16 Col-5 Twilight colours in sky

The solar radiation as received on the surface of Earth varies from place to place, season to season, day to day and even hour to hour. Equatorial regions receive more radiation, than polar regions. Darker surfaces, like the tropical forests reflect very little radiation, 10 %, compared to snow bound high latitude areas, which nearly reflect 80 % of the energy received. Cloudy and dust polluted areas receive less solar energy. Direct sunlight at noon can have illuminance as high as 120,000 lux (Compared to this moon light is <1 lux). Sunlight is a warm colour light, at noon, the colour-temperatures are about 5500°k, bluish-white or ‘cool colours’ and at sunset, these are about 2700-3000°k (degrees kelvin), are yellowish-white through red or called ‘warm colours’.

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The reflected light from the exterior surfaces of buildings, roads and pavements affect the illumination on lower floors of the buildings. These cause minor variations due to movements of people, vehicles, ripples on water bodies and leaves of trees. Upper floors of tall buildings, except in similar localities, receive fairly consistent, but very strong daylight from nominal windows. Such floors with low or no sill windows (glass curtain walls) get varying levels of illumination, often strongly coloured.

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Reflectance of rooms’ interior surfaces impacts the perception of brightness and colours in a space. The surface reflectance is a function of colour, its texture (matt, dull-sheen, glossy) and the orientation of grains of textures. Extreme levels of brightness, if, are present within the same field of view, can be calibrated by the surface texture and colour. Historic buildings, sites and remains, are conserved with surroundings updated through paved stones of same colour-texture as the original built-form or green lawns. These choices, alter the degree of interior brightness, as well the quality of colour.

Terrain Colours

Similarly cities conserved with enforced thematic colours (blue -Jodhpur, Pink -Jaipur, both in India, white -Santorini, sienna browns -Italian, Piazza del Campo and ), create monotonous colour tonality in interior spaces.

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For artificial illumination sources Brightness and Colour have some sensorial connection. Artificial light sources one commonly accepted rating, the Colour rendering index (CRI). It is supposed to index ‘how the colour will look’. High CRI (nearly equal to daylight in afternoon) will mean colour will look ‘real and right’ and low CRI will mean unreal (weird) and wrong. CRI has limited relevance, if only the illumination source is white (Candles and incandescent bulbs can have high CRI ,but are off-white. The sodium lamps have low CRI but high brightness.

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SEGMENTING the SPACES -Issues of Design 31

Post 711 -by Gautam Shah

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Spaces are divided with partitions and also segmented through ephemeral means. The spatial definitions formed by partitions or physical barriers are permanent units, whereas the segmented spaces are mere recognitions that are transient and symbolic. Spaces need to be divided into smaller parts, as much as combined into a greater whole. The sub-unitized spaces are sometimes recombined by selective dissolution of the partitions and zoned identities are re-comprehended by redefining their purposes.

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The spatial entities have two sets of characteristics. 1 – A space with personal identity is a centred spread. It is focussed to the core and with variable peripheries. 2 – A space with identity of a group is of precise extent. It has an emphatic periphery. In the first instance the spatial quality emerges from the physiological and sensorial reach to others and objects. In the second instance, the group dynamics like customs of social distancing, sensorial responses for interactions and in recognition of age, sex and relationships between the people, define the space.

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The structural divisions in built-forms are finite zones for identity, isolation, privacy, security and environmental exclusivity. But these can be often too large or small. Small spaces need to be enlarged by transgressing to adjoining zones or even outsides, through the openings. These form convergent spaces with the adjoining zones, like verandahs, galleries, bay windows, etc. Large spaces have the scope for inverse or inward transgressions. The inward intrusions change the functional character and sensorial qualities by forming mew peripheries. Where sub-spaces are consistently used, these may be distinguished with built partitions.

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Partitions brand a space for exclusive use, private access and status quo. Once palace and manor kitchens had many roomettes like for cutlery, crockery, linen, cream and milk, bakery items, poultry, meat etc. The primitive cooking place was also meal taking place. These were structured storage units, but now have become segmented parts of kitchens, with better cabinets systems. And nowadays with continuous supply chain system very little storage segments are needed. Dirty kitchens forced dining to separate room. In modern times cooking is no longer dirty and cooking is not necessarily cook’s or housewives’ domain so cooking and dining both impinge on family rooms.

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To coalesce two structured spaces, the prime strategy is to relocate, resize or add openings between two. Next strategy is to combine the functions of two spaces. Family rooms and drawing rooms are no longer separate entities.

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Ephemeral divisions relate to delineation of areas for people, tasks, amenities, facilities, orientation and environmental affectations and sanctimony. Such delineated areas are customary and respected by the members of the family as much as by the community. Some areas are considered sacrosanct and require affirmation to rituals. The tasks conducted here in ephemeral divisions are variable in spread and transient in time. The spread is defined by the physical reach and the tools’ assisted range. Postural capacity and adjustability both rationalize the spread.

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Ephemeral segmentation of space occurs with both, the Time and Space interventions. Time interventions allow use of same space for many different purposes. This avoids the conflicts of privacy, sanctimony, security, territorial ownership or access and sensorial mix-up. The Western Wall, Wailing Wall, Kotel or Buraq Wall, are different ephemeral divisions of Holy place in old Jerusalem. Spatial distancing and time delay allows reenforcement of individual identities but when at excessive scale creates alienation. The appropriate balance can have different meanings for the concerned persons, objects, activities, intentions etc.

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Defined or Abstract, space segments are recognition of the edges. The edges reflect three distinct spatial characteristics, namely, –Edge or Periphery, Core and the Adjunct.

In case of defined or structural divisions of a space, the edge as the barrier has a peripheral character. This is more so when the space spread is large enough to distinguish the core versus the periphery. The adjunct areas here have relevance, wherever the barriers are breached. In case of ephemeral divisions of a space, the edge is not real but just a recognition of extreme part of a spread. All ephemerally segmented spaces have unreal edges that converge with other domains. For segmented or partitioned spaces the periphery becomes the area of connections and variations. Besides the environmental variations and communication, it is also a point of control.

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The housewife chooses a space segment, usually a verge, from where everything can be observed and controlled. The services area, cooking, dining and the entry, form such connected segments. In single room spaces like Bhunga or huts the door is such a control point.

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The core is the place of task-handler, equipment or source+direction of environmental affectations and possibilities of control over other spaces. The core defining elements could even be sited abutting a structural element. Every other section beyond the active core is peripheral. A space gains a personal meaning when the activity conductor is the focus and everything is distanced from it.

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The societal intention of a space is not necessarily circular but rather a concentric one, where the periphery is the greatest distance before becoming irrelevant. The core and periphery are distinguished by the social distancing as a recognition of age and sex of the people. It can be personal at one level and also as accepted tradition or taboo. The personal need for segmenting a space is to accommodate the self, include other people.

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The personal space may not need compartmental divisions except for safety and security against displacement. Personal spaces flourish better with opportunities of interaction and participation in activities of others. This is possible if the spaces are only ephemerally segmented. The public spaces, if extensive, allow several segments to thrive.

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The adjuncts are sub core sections, which impinge the main spread, but in different time and space. The adjuncts spaces have nearly distinct identity and so are separable. Adjuncts share a similar architectural ethos, common sensorial experiences but with variegated environment. Verandahs, chowks, courtyards, terraces are such locations. Off-centric core areas occur for one person or point focussed concentration. These are cornered entities that only flourish with adjuncts acting as escape areas. Performance stages function only with side-wings and backstage support. Public spaces and plazas cannot survive without the adjunct streets. Public buildings exist with attached foyers. Multi-room homes are served by the lobbies.

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This is the 31st article (in continuation of old series -new beginning) on ISSUES of DESIGN.

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PETER BEHRENS -Product Designer

Post 710 -by Gautam Shah

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Peter Behrens (1868-1940) was a German artist, architect and designer. His creative conceptual clarity, art, products, architecture and typography all have influenced a generation in Europe. He was born in Hamburg. He studied painting at the School of Art in Karlsruhe (1886-1889). He spent the 1890s in Munich as a painter and designer, practicing in than current Jugendstil or German Art Nouveau style. He was actively involved with the Berlin Sezession group of artists, architects and designers in 1893.

Peter Behrens Products

Sezession was an Austrian and German group of progressive artists, who in 1892 (first in Munich and then in Berlin) formed a separate entity, breaking away from the conservative artists. The secession was a space for people from different backgrounds to work together to influence a new culture of German Modernism. The First World War created a negative impact on the Sezession but Hitler’s rule removed it from the scene.

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Peter Behrens was the co-founder of the Deutscher Werkbund, whose aim was to link industrialists and artists, paving the way for design-led technology.

The Deutscher Werkbund (German Association of Craftsmen, German Labour League or German Work Federation was -ˈdɔʏtʃər ˈvɛrkbʊnd) was inspired by the Government, in 1907. Its initial concept was to bring together designers and manufacturers to integrate the traditional crafts and industrial mass production techniques. Its motto was ‘Vom Sofakissen zum Städtebau’ (from sofa cushions to city-building).

It became the most important group of artists, architects, designers, and industrialists, to support the development of modern architecture and industrial design. Werkbund was first led by Herman Muthesius. Other key members included Mies van der Rohe and Eliel Saarninen. This initiative later led to formation of the Bauhaus School of Design.

Werkbund members believed that unity and beauty of form was essential and saw industrialization as a force that demanded a re-calibration of the German aesthetic standards. They believed that German designers needed to shift their focus toward designing objects that could be mass produced, to object based on its functional logic, and that each object should be honest about its materials. Its mandate was to enhance the quality of German products in world markets, mainly England and United States in pre WW-I period.

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Peter Behrens (with Henry van de Velde and Muthesius) was also part of the original leaders who developed the philosophy of Gesamtkultur #a cohesive cultural vision where design was the central force for fresh, man-made environment. The visual language perceived for Gesamtkultur was bereft of ornamentation, in favour of simple and function. For the cohesive cultural vision and for re-configuring, optimizing and mechanizing their productions, they discussed all areas of design, graphic, typography, products industrial products design, architecture, textiles, etc. Hermann Muthesius had returned from England to Germany with Morris’s Arts & Crafts concepts, but here he was focussing on mechanizing the production with high-quality design and material integrity.

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# Gesamtkultur, as a word was coined by 19th C German composer Richard Wagner, who saw his operas as a total work of art, synthesizing music, poetry, drama, theatre, costume, and set design. It is used for a work produced by a synthesis of various art forms.

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Peter Behrens, began working as a painter, illustrator and bookbinder. He in 1899, under the influence of J. M. Olbrich moved from Art to Architecture. He was a self-taught architect. In 1899 Behrens accepted the invitation of the Grand Duke Ernst-Ludwig of Hesse to be the second member of Darmstadt Artists’ Colony. Here Behrens built his own house as a debut in architecture. He also designed furniture, furnishings paintings etc. for it. This building in Jugendstil style (German equivalent of Art Nouveau style), though Behrens never lived in it, is considered to be the turning point in his life.

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Behrens became director of the School of Applied Arts in Düsseldorf (1903-1907). At Düsseldorf, Behrens became interested in Theosophist geometry. The curvilinear forms that he once used in own residence were now replaced with the rectilinear geometry. At Dusseldorf Behrens designed a remarkable building, the Crematorium in Hagen (1906), using the plane surfaces and incised linear decoration with experimental cubic symmetry of geometric volume. He also designed several other buildings in now sober and austere style. This included the Exhibition hall for the Northwestern German Art Exhibition at Oldenburg (1905). With new prestige, he began to frequent the bohemian circles and showed interest in subjects related to the reformation of the lifestyles.

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Deutscher Werkbund principles of quality, as formulated in 1907 was the first theoretical formulation for pursuit of Quality. These concepts were so remarkable that several decades later QMS ( Quality Management Standards, ISO 9000) of the ISO and the SA (Social Accountability Standards ISO 8000) had similar foundations.

7 La maison de Peter Behrens (Musée_de_la_colonie_d'artistes,_Darmstadt)_(8728647639)

Germany was embracing a new philosophy and visual style for its simplicity and exactness. The new products, with their high level of functional utility and beauty were expected to build a new future for German exports. Behrens, with his multi disciplinary experiences was capable of designing things in diverse fields. As a product designer, in 1898, he designed glass bottles and different types of wine glasses. In 1907, Behrens was invited for the post of an artistic adviser to Germany’s largest electric company AEG (Allgemeine Elektricitäts Gesellschaft, Berlin). He was required to form a monumental image for the prestige of the firm by arranging mass production with artistic expression. His job included design of electrical equipments, fixtures, branding packaging, catalogues, posters, architecture for factories and workshops.

8 Behrens Office

Peter Behrens, in Berlin office, between 1908-1911, designed five large industrial buildings. The Berlin office had during the period apprentices and design assistants like, Walter Gropius 1907-1910, Mies van der Rohe 1908-1910 and 1911-1912, and Le Corbusier, Adolf Meyer and Jean Kramer. Mies worked on interiors of two houses, AEG Small Motors Factory and Assembly Hall for Large Machines. Other works include Berlin Turbine factory, High Voltage Factory, AEG factory complex, two houses Cuno and the Schroeder, Osthaus -the site plan for a group of villas in Hohenhagen, Mannesmann Administration Building in Düsseldorf and the Gas Works in Frankfurt-Osthafen.

9 AEG Turbine factory facade.jpg

22 AEG Voltastraße Alte Fabrik für Bahnmaterial

25 Peter Behrens AEG High Tension Factory, Berlin

The Turbine Factory for AEG, of exposed steel, concrete, and large areas of glass was admired Le Corbusier as the ‘cathedral of labour’, in 1912. The Mannesmann Administration Building in Düsseldorf and the Gas Works in Frankfurt-Osthafen both, were designed in 1910-12.

17 Behrens Peter Hoechst administration offices 1920-27, central hall elevations

21 Behrens Hoechst administration offices 1920-27, central hall elevations

10 Project Mies

Behrens always made the final decisions and had total control of the design process. The clarity of the volumetric articulations is evidenced by the choice of the points of view. The buildings were always represented in relation to the environment. He showed an ability to express the materials in the facades through the representational graphics and in the reality of built form.

23 Peter Behrens Bau Oberhausen

11 The Mannesmann house

Design is not about decorating functional forms – it is about creating forms that accord with the character of the object and that show new technologies to advantage.’ –Peter Behrens.

13 Crematorium

The transition between this naturalistic period and his later activities, in the Berlin office show a search for new linguistic conventions based on abstraction, anti-naturalism and expressionism with a degree of monumentality. Peter Behrens remained head of the Department of Architecture at the Prussian Academy of Arts in Berlin. In 1922 he became a professor of Architecture at the Academy in Vienna, and thereafter little works of consequence emerged. Behrens became associated with Hitler’s urban dreams for Berlin. Hitler also admired Behrens’s Saint Petersburg Embassy.

14 Behrens's Saint Petersburg Embassy

From 1920 and 1924, he was responsible for the design and construction of the Technical Administration Building (Technische Verwaltungsgebäude) of Hoechst AG in Hoechst. In 1926, Behrens designed a home for Englishman Wenman Joseph Bassett-Lowke in Northampton, UK. It is regarded as the modernist house in Britain. In 1928 Behrens won an international competition for the construction of the New Synagogue, Žilina.

12 Peter Behrens Neologic Synagogue in Zilina 1928-1931

15 Behrens Mausoleum 1925, elevation + Plan

Behrens was AEG’s chief artistic advisor from 1907-1914 and is now considered the Father of Industrial Design. He designed several domestic products for use of electricity. The domestic products were conceived for mass production, utility and not have ‘impersonal’ identity. The objects include fan or Ventilatoren in 1908, light fixtures and electric teakettle. The Fan evolved from the first electric fan, created by Schuyler Wheeler in 1886, with variations in speed setting and wind direction. The electric kettle was the first product with immersion heating elements, integrated into the body of the kettle rather than placing it as an adjunct element. The kettles were produced in several shapes (cylindrical, octagonal or oval), materials (chromium and brass), and surface finishes. Of the possible 216 configurations only 30 were produced. He devised, the Sans serif fonts for the reductive graphic style. Behrens is credited with Schrift (1901-7), Antiqua (1907-9) and Medieval (1914), through Klingspor Type Foundry.

26 Behrens 1930 Berlin Bernauer Strasse subway

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ADDITIVES for CLAYS’ SURFACE FINISHES and PRODUCTS MAKING > Part -II

Post 709 -by Gautam Shah

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Earlier article in the series CLAY MATERIALS for SURFACE FINISHES and PRODUCTS MAKING > Part -I (https://interiordesignassist.wordpress.com/2019/11/02/clay-materials-for-surface-finishes-and-products-making-part-i/)

5 Mixing Hay for Adobe

Clays and soil materials are universally and abundantly available with negligible cost of procurement. Nearly one-half and two-thirds of the world’s population still live or work in buildings made with raw clays, baked into brick walls and floors and use several other baked products like firebricks, storage and cooking utilities like pots and vessels. Variety of mixed soils are used as natural raw materials for structural, building, surface finishes or craft items.

10 Gully Erosion of Soil Dead Sea CoastalErosion

The soils or clay materials display high organic contents as top soil, to nearly mined soils with nearly zero organic component and washed or ground residual products containing mixed organic and mineral substances. Soils have adjustable plasticity, mould-ability, insulating qualities, high thermal capacity, non toxicity, eco friendly nature and simplicity of application. Soils have besides plasticity and shrinkage on drying, issues of deflocculation, coagulation, dry and wet strength of clays.

15 River Silt

Soil colloids are the most active constituent that determines the physical and chemical properties of the soils. These are very small particles which are one-thousandth of a millimetre (0.0001 mm, 0.0004 in). Like other soil particles, some colloids are minerals, whereas others are organic. Mineral colloids are usually refined clay particles. When these particles are mixed with water, they remain suspended indefinitely, turning the water murky. Organic colloids are tiny bits of organic matter that are resistant to decay. Colloidal particles are always in motion because of charge particles. Colloidal particles are transformed from a liquid into a soft semisolid or solid mass by adding an opposite charged ion. Colloidal particles have ability to absorb gases, liquid and solid from their suspension. Colloidal particles never pass through a semipermeable membrane. Colloidal particles have the properties of cohesion and adhesion’.

9 Peat Blocks

Generally, such soils have numerous problems due to the low strength, high compressibility and high level of volumetric changes. Clays need to be improved before these can be used even for soil-based structures like roads, dams, embankments, landfills etc. Improved mix and layering can solve issues of plasticity, swelling, angle of repose, load-bearing behaviour, stability and workability of the clays.

11 Rummu aherainemägi2

Soil Erosion is the displacement of the upper layer of soil, it is one form of soil degradation. Rainfall, and the surface runoff which may result from rainfall, produces four main types of soil erosion: splash erosion, sheet erosion, rill erosion, and gully erosion.

Clay is a fine-grained soil, but not all fine-grained soils are clays. Clays are distinguished from other fine-grained soils by differences in size and mineralogy. Silts are fine-grained soils tend to have larger particle sizes than clays. Mixtures of sand, silt with less than 40% clay are called loam. Loam. Loam makes good soil as a building material.

8 House made of mitti

Clay and Soils are used for forming raw or baked products. Such materials have fewer problems such as shrinkage on drying (cracking), less of homogeneity in dry state, high water permeability -hygroscopic, low weatherability, poor bonding to a substrate -peel off, vulnerability to white ants and insects and colour.

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Clay products forming processes are, both corrective and additive, unlike wood working, which is basically a deductive process (unless one uses joinery techniques). Clay earthenware processes, at a later stage suffused the stoneware, porcelain and glass making, due to involvement of ‘earthy’ minerals and the heat treatments. In building construction clay products competed against stones, and metals for household items. Stones are not available in all locations and metals need higher technology, compared with the universal material, the Clay.

13 Silt on the banks_of_the_River_Severn_-_geograph.org.uk_-_686914

Plasticity of clay is one its plus quality that is available in no other materials except the flour dough. Clays nominally attain plasticity by addition of moisture, but for high-end ceramics shape forming is through densification by pressure. The plasticity is not a critical criterion, as ceramic soil materials show flow properties at high temperature forming inter-particle bonding.

6 Extruded hollowed Clay blocks being air-dried before going to furnace

Soils are exploited by tackling issues with fillers and additives that are local, low cost and technologically simpler. Fillers and additives are primarily natural materials such as other clays, sands, granules, pozzolana, minerals, crushed baked products (like surkhi, ceramics, coal ash, etc.), dried-rotted agriculture wastes, hairs, natural gums, etc. At the other end, fillers and additives are processed materials like pigments, synthetic fibers, polymeric compounds and resins, oxides, carbonates, Portland cements, calcined lime, etc.

4 Caesarea_Concrete_Bath

Fillers mainly change the physical quality of the soil by adding to the bulk, altering the plasticity and changing the economics profile of raw materials. Additives play an effective role in changing the chemical properties of the mix. Majority of fillers are inferior clays or earth-based products. Additives are proportionately of small volume or weight, like gums, binders, cement, asphalts, pozzolana, lime, bitumen, alkali-acid controllers, colourants (pigments), constituted minerals, baked clay crushing, etc.

14 stacked soil for wall

Fillers and Additives often serve mutually supportive as well as mutually un connected purposes, for one or many of the following reasons.

  1. to improve the quality of basic soil material
  2. to reduce or enhance the moisture content
  3. to control moisture removal
  4. to control plasticity
  5. to achieve a desired colour / texture
  6. to produce specific type of castings / mouldings
  7. to improve weatherability of the final product
  8. to improve upon insect vulnerability
  9. to improve substrate adhesion in wet and dry states.

1 Clay Extracting and mixing water to produce bricks

Clays can take large amounts of water to achieve a fluid, watery mass or pasty form. It can be moulded to any shape, massive, thin wall or with intricate details. The formed clay, when dries out, must still retain the shape and its surface can be modifiable to different finishes, by way of dry engraving, polishing, coating and colouring.

The air-dried forms of clay, on firing becomes permanent and the mass achieves greater soundness. All clay forming processes are energy efficient as use less energy and labour for conversion than the metal shaping-forming processes.

3 Sun dried Adobe Blocks 2815570468_023f24cda7_c

Clay items can be made by poring in, strip or coil stacking, moulding, wet engraving, shaping on a wheel and casting and deductive (carving-engraving) or additive processes. Clay can be liquidized and poured into moulds with very fine details such as hair, costume, drapery or facial features. Such details are difficult with metal castings. Compared to stonework, the finished products of clay are far lighter in weight, and easier to paint. Terracotta products shrink on drying, which is both an asset and drawback. Shrinkage on drying allows easy removal from casting moulds (like bricks, cups, saucers, toilet-wares), but the same in heavy mass items can causes cracking. Clay products on drying have porous mass due to the cavities left out with water evaporation. Such cavities provide light weight mass, greater heat retention, insulation and bonding with joint materials and external surface finish. But for electric and electronics products greater density is achieved by dry mass, greater compaction casting and non plastic raw materials. Clay is considered the most sustainable and eco-friendly material.

Nukus - Khiva, view from Ayaz Qala

Broad classification of Fillers for clays are, 1 Addition of bulk, 2 reinforcement, 3 adjustment of viscosity for shape forming, homogeneity, 4 Bonding, 5 moisture resistance and 6 substrate bonding and workability for surface applications.

Clays have been used from palaeolithic age or earlier. These were earth structures formed, repaired or improvised by dressing, slope forming and shape contouring the lands for forming terrains, flood protection, burial sites, fishing, and water management. These were in the form of embankments, dykes, canals, bridging paths, etc. Various grades of soils and clay were exploited or the purposes of alteration of the angle of repose, drainage, safety from colloidal clay spreads, dousing of bush fires, etc.

2 Soil mixing, raw bricks casting and stacking for drying Image by Bild von Siva Nanthan auf Pixabay

For building of walls, for homes and protection structures clay blocks were cast. For casting viscosity and to prevent cracking on drying reinforcements fillers were required. For both of these purposes’ husks, fine chopped hay, grass and stems, dried leaves, animal excreta, bird droppings, ashes from fires, jute or coir like vegetable fibers, human and animal hair were used. Hay, grass and dry leaves are vulnerable to white ants, but rice-husk due to presence of toxic oils is almost immune from it.

17 Cow Dung Soil mix allowed to mature for few days before using it surface Finish Village women Bangladesh

Cow dung is the most popular filler for clay type of surface finishes, in India. Typically dry season fresh cow dung consists of, 33% solids and 67% of water+gases etc., by weight. The solids in a cow dung are as follows:

  •                   Soluble organic             7.5 parts
  •                  Insoluble organic         76.0 parts
  •                  Soluble inorganic          4.5 parts
  •                  Insoluble inorganic       12.0 parts
  •                  Total                              100.0 parts by weight

A matured or rotted dung is better filler then a fresh one. Rotting and consequent decomposition leaves an odourless mass that does not leach out with the addition of water. Rotting also generates fungicidal and insecticidal agents like gallic acid and tannin. Best way of maturing dung is to mix it thoroughly with 1/3 of all the soil to be used and then allow the slurry to remain in a dark, warm, impermeable pit for at least 72 hours. The clay to cow dung proportion vary according to the type of use such as:

  • Quality of dung           dry of summer or wet of monsoon
  • Type of soil                  organic or mineral
  • Type of plaster            plain, decorative, mural
  • Substrates                    smooth or rough

Dung to clay ratios of 1:4 to 1:8, is common for plaster work, but 1:1 ratio is often used for flooring and art work. Cow dung provides homogeneity, improves workability, retards shrinkage on drying. Clay+cow dung surfaces are fairly impermeable to water.

Dungs of other animals, like horse, donkey and other domestic and wild animals are drier and more fibrous due the quality of diet. For this reason such dungs are more suitable as fillers for excessively plastic clays. But such dungs do not rot or decompose as readily as cow dung.

Scrapping of old Clay+Dung floor and wall surfaces, are added to clay to control the plasticity. Such scrapping from Chulhas and Tandoor are fire baked products, and dust of bricks (Surkhi in India) have cementious siliceous compound. Surkhi is added to clays for floor and wall daubing besides being used for clay tennis court, country cricket pitches, paths and low traffic country roads. Surkhi may need addition or presence of lime in clay to form a cement like compound. Properly rotted, Clay+Dung mixtures have been found to be low-cost eco friendly water seepage resistant base for freshly dug pits and canals.

16 Volcanic Ash Yogyakarta_eruption of Kelud

Pozzolana is volcanic ash. It is an active siliceous material that reacts with hydrated lime to form a gel, which on drying becomes insoluble and stable. Slag is a siliceous waste taken off from the molten ores of metals. If slag is quenched immediately on its removal from a furnace, crystallization of silica into glassy structure is stopped. Slag also needs hydrated lime to harden. Slags however contain sulphur and can be used to neutralize alkaline soils. Surkhi is a manufactured siliceous compound to which addition of lime is not required. These materials are used with organic plastic clays (which tend to be acidic) to achieve initial setting and with mineral soils, for greater homogeneity.

Fly ash, a fine residue of from pulverized burnt coal, collected from chimney stacks and boilers. It contains 55% SiO2, 30% Al2O3, 5% CaO and 7% Fe2O3. These crude forms of tri calcium silicate and tri calcium aluminate in the presence of water bind particles of mineral types of soils. Mineral coal ash, if fine and free from u-burnt coal and sulphur can be used as filler provided black colour is not objectionable.

Portland cement 5% to 18% on dry clay weight basis is used for quick setting, better wear-tear properties and overall mass strength. Sandy or mineral soils require lesser amounts of cement then organic or silt soils.

Additives like, protein glues, vegetable gums and chemical binders are used as binding agents to improve the workability and fast setting. Such additives are of little use with plastic clays but are more suitable for sandy soils. These are water thinnable, hygroscopic and so soften up every time they come into contact with the humidity. But some chemical binders, though is water thinnable, on drying harden into a water insoluble matter. Typical agglutinates are guar gum, arabic gum, casein, soluble starches, cooked starches, molasses, sodium alginate, acrylate and other polymeric resins, amino resins etc. For optimum results the quantity of agglutinate required is small, but their high costs prohibit the use.

Sand stone dust, shell and lime and other kankers provide ‘body’, improve workability and to an extent reduce the shrinkage. Calcined, hydraulic, non hydraulic limes and calcined gypsum (plaster of Paris) are used for better initial setting and overall strength. Whiting and china clay are mainly used to impart lighter colour tones. China-clay, because of its hydrophilic nature helps the mixing of water and `false’-initial setting of the mass.

Other clay fillers include partially ‘digested’ paper-pulps, paper shreds, lint (of cotton seeds), staple fibers, viscose, glass wool, hairs, carding waste of wool and cotton. These mainly reduce the cracking on drying.

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ELEMENTS of BUILDING SYSTEMS -Issues of Design 30

Post 708 -by Gautam Shah

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Building Systems have many elements, real and conceptual. Order, Core, Periphery, are the Real or physical elements, whereas Convergent zones, time-space relevance and Domain identities are the conceptual elements.

7 architecturaldesigngreektemplerepetitionofcolumn

8 Hong Kong 9278832806_e514bd6610_c

ORDER: Order is an inherent characteristic of all building systems. Order begins to emerge as soon as parts and components are selected for inclusion in a building system. Initially, building systems have order that is alogical and loosely definable, and it may or may not be apparent. But it is noticeable when the system begins to perform. At this stage, in simple system the order is obvious, logical and definable. But in nonphysical systems the order can be elusive due to the scale and complexity. Yet recognition of order in a system helps in many ways:

  • It helps the definition of a system.
  • It endows self sufficiency, so that the system can become an ever replaceable component.
  • It provides nodes for dependency so that the system becomes integrated whole.

cour napoléon du musée du louvre avec pyramide 75001

In all building systems the primary orders are: selection (inclusion and exclusion) of parts, components, etc. and the process of assembly or manufacture. However, in complex systems there are many levels and categories of orders, chiefly selective time-space relevance of components. Some parts and components remain latent, but become relevant in specific conditions.

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Every human effort follows some intrinsic logic’. Parts of an entity, even before being manufactured and even before physically placed together, have some degree of coordination. The coordination begins within the thought processes of the Designer along with the formation of concept for the object.

3 geograph-6245178-by-Rob-Farrow

Another important characteristic of building systems is their domain or territory. This is very apparent in physical systems, but nonphysical systems seem infinite with no edges. However, metaphysical systems have a zone where they are adequately active in comparison to sections where such systems are diffused, i.e., partially effective.

9 2362660336_ec1aae1dcf_c

Recognition of order in building systems, are both subjective and objective. Subjective involvement allows the system author to see through the nascent logic, or prevent the recognizing the order. Objective evaluation of the system by an uninvolved person rides over personal biases. Objective evaluation by stakeholders can occur for substantially realized or an operational system.

6 Germany,_Berlin_-_Reichstag_-_panoramio

CORE OR NUCLEUS: Building systems have a strong focus or conceptual foundation from which other subsystems emanate or converge to. In building systems, a focus like core or nucleus is the zone where one establishes conceptual mooring or begin encounters with the system. The core distinguishes two directions: inward and outward.

12 architecture-building-monument-golden-buddhism-religion-611837-pxhere.com

The conceptual systems have no edges or definitive extent. So encounters with the atmosphere as a system begins at the surface of the earth, i.e. technically at the optimum sea level. The core in such nonphysical or conceptual systems is a multi faceted and transient phenomena because some of the subsystems verge here for a while or seem to have a bearing here.

In buildings Core or Nucleus is an exclusive zone, less variable. A core zone is a singular entity and contrasted with peripheral areas, which are of many different types.

11 Burj_al_Arab_lobby_March_2008panob

PERIPHERY: In building systems the barricades (walls, roofs, doors, windows, etc.) the periphery zones are well defined. The strength of buildings barricades show the holistic character. Sub systems here have some semblances of independence but within the confines of peripheral barricades. The periphery zones or edges are recognized when a subsystem touches other subsystems of neighbouring domains. During rest of the conditions the periphery may not be perceptible. The periphery is well delineated in systems that exchange information or transfer energy at specific nodes and through some protocols.

13 Convergent forms 26706917213_b3aaa1d99f_c

CONVERGENT ZONES: Convergent zones are more apparent in conceptual systems as the intervention areas formed by overlapping subsystems and also by gaps or interludes between the subsystems. The convergence and gaps-interludes occur, both in time and space. A loosely conglomerated system like the transit, courier, etc. consist of several modulated units, occurring across different regions, or across technologies. Here planned or recognized gaps and interludes give all subsystems a component like ‘replaceable’ identity. The gaps and interludes are not completely devoid, but are full of metaphysical things, as in case of solar system. Systems flourishing, at different periods or across geographical regions can have concepts, ideas, etc. that are common, making them universal.

1 fortpoint_fortpointsanfrancisco_brickforts_underthegoldengate_civilwarforts-443769

TIME-SPACE RELEVANCE: These are more apparent in very large systems, more so in conceptual systems. These systems have diffused edges and overlapping identities with other systems. It is a selective and subjective perception, because the large system reveals itself in parts. The perception is conditioned by the location and occasion.

Old Architecture Building Facade Window Hauswand

DOMAIN IDENTITY: Domains form a place, a physical or conceptual one. Real domain s have a territory, whereas conceptual ones have extent of effectuality. The conceptual domain is a belief or a conduct to sustain a myth. The acceptance or confirmation of it gives a sense of participation and control but without any distinctive ownership. Physical systems have a finite edge and so reflect an exclusive domain. All Domains are conferred with certain social, cultural and political ideologies. A domain identity marks what is internal and external to a system. It indicates how a system is part of the larger system. It identifies nodes for dependency or connectivity of the system.

This is the 30th article (in continuation of old series -new beginning) on ISSUES of DESIGN.

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