Design pattern (architecture)
Encyclopedia
Pattern in architecture is the idea of capturing architectural design
Design
Design as a noun informally refers to a plan or convention for the construction of an object or a system while “to design” refers to making this plan...

 ideas as archetypal and reusable descriptions. The term "pattern" is usually attributed to Christopher Alexander
Christopher Alexander
Christopher Wolfgang Alexander is a registered architect noted for his theories about design, and for more than 200 building projects in California, Japan, Mexico and around the world...

, an Austrian born American
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 architect
Architect
An architect is a person trained in the planning, design and oversight of the construction of buildings. To practice architecture means to offer or render services in connection with the design and construction of a building, or group of buildings and the space within the site surrounding the...

. The patterns serve as an aid to design cities
City
A city is a relatively large and permanent settlement. Although there is no agreement on how a city is distinguished from a town within general English language meanings, many cities have a particular administrative, legal, or historical status based on local law.For example, in the U.S...

 and building
Building
In architecture, construction, engineering, real estate development and technology the word building may refer to one of the following:...

s. The concept of having collections of "patterns", or typical samples as such, is much older. One can think of these collections as forming a pattern language
Pattern language
A pattern language, a term coined by architect Christopher Alexander, is a structured method of describing good design practices within a field of expertise. Advocates of this design approach claim that ordinary people of ordinary intelligence can use it to successfully solve very large, complex...

, whereas the elements of this language may be combined, governed by certain rules.

Alexander's idea of patterns

Alexander's patterns seek to provide a source of proven idea
Idea
In the most narrow sense, an idea is just whatever is before the mind when one thinks. Very often, ideas are construed as representational images; i.e. images of some object. In other contexts, ideas are taken to be concepts, although abstract concepts do not necessarily appear as images...

s for individuals and communities to use in constructing their living and working environment
Built environment
The term built environment refers to the human-made surroundings that provide the setting for human activity, ranging in scale from personal shelter and buildings to neighborhoods and cities that can often include their supporting infrastructure, such as water supply or energy networks.The built...

. As such their aim is both aesthetic and political: to show how beautiful, comfortable and flexible built environments can be constructed, and to enable those people who will inhabit those environments to challenge any solution
Solution
In chemistry, a solution is a homogeneous mixture composed of only one phase. In such a mixture, a solute is dissolved in another substance, known as a solvent. The solvent does the dissolving.- Types of solutions :...

 forced upon them.

A pattern records the design decisions taken by many builders in many places over many years in order to resolve a particular problem. Alexander describes a problem in terms of the so-called forces that act in it, and the solution is said to resolve those forces.

Pattern language

Patterns may be collected together into a pattern language
Pattern language
A pattern language, a term coined by architect Christopher Alexander, is a structured method of describing good design practices within a field of expertise. Advocates of this design approach claim that ordinary people of ordinary intelligence can use it to successfully solve very large, complex...

 that addresses a particular domain. A large body of patterns was published by Alexander and his collaborators as A Pattern Language
A Pattern Language
A Pattern Language: Towns, Buildings, Construction is a 1977 book on architecture, urban design, and community livability. It was authored by Christopher Alexander, Sara Ishikawa and Murray Silverstein of the Center for Environmental Structure of Berkeley, California, with writing credits also to...

. The patterns in that book were intended to enable communities to construct and modify their own home
Home
A home is a place of residence or refuge. When it refers to a building, it is usually a place in which an individual or a family can rest and store personal property. Most modern-day households contain sanitary facilities and a means of preparing food. Animals have their own homes as well, either...

s, workplaces, town
Town
A town is a human settlement larger than a village but smaller than a city. The size a settlement must be in order to be called a "town" varies considerably in different parts of the world, so that, for example, many American "small towns" seem to British people to be no more than villages, while...

s and cities
City
A city is a relatively large and permanent settlement. Although there is no agreement on how a city is distinguished from a town within general English language meanings, many cities have a particular administrative, legal, or historical status based on local law.For example, in the U.S...

.

Other than Alexander's own projects, few building projects have tried to use Alexander's patterns. Those that have, have met a mixed responses from other architects and builders, architectural critics and users. Alexander has come to believe that patterns themselves are not enough, and that one needs a "morphogenetic"
Morphogenesis
Morphogenesis , is the biological process that causes an organism to develop its shape...

 understanding of the formation of the built environment; he has published his ideas in the four-volume work The Nature of Order
The Nature of Order
The Nature of Order: An Essay on the Art of Building and the Nature of the Universe is a four-volume work by Christopher Alexander published in 2003-2004. In his earlier work, Alexander attempted to formulate the principles that lead to a good built environment as patterns, or recurring design...

.

While the pattern language idea has so far had limited impact in the building industry, it has had a profound influence on many workers in the information technology industry.

See also

  • Pattern language
    Pattern language
    A pattern language, a term coined by architect Christopher Alexander, is a structured method of describing good design practices within a field of expertise. Advocates of this design approach claim that ordinary people of ordinary intelligence can use it to successfully solve very large, complex...

  • Design pattern
    Design pattern
    A design pattern in architecture and computer science is a formal way of documenting a solution to a design problem in a particular field of expertise. The idea was introduced by the architect Christopher Alexander in the field of architecture and has been adapted for various other disciplines,...

  • Design pattern (computer science)
    Design pattern (computer science)
    In software engineering, a design pattern is a general reusable solution to a commonly occurring problem within a given context in software design. A design pattern is not a finished design that can be transformed directly into code. It is a description or template for how to solve a problem that...

  • Architectural pattern (computer science)
    Architectural pattern (computer science)
    An architectural pattern in software is a standard design in the field of software architecture. The concept of a software architectural pattern has a broader scope than the concept of a software design pattern...

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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