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24 Search Results for "alexander"

Narrating Wholeness: Pattern Language Generating Semi-Lattice(s), System(s), and/or Holon(s) (PUARL 2018/10/27)

In what ways might the generation of wholeness through pattern language be strengthened, through an appreciation of advances in the systems sciences?  A workshop at the 2018 International PUARL Conference was an opportunity to review linkages and discuss some details.

An outline to frame the conversation was written in three parts.

  • 1. Communicative Framing
    • 1.1 Form and synthesis
    • 1.2 Organization as semi-lattice
    • 1.3 Systems generating systems
    • 1.4 Generative patterns and non-generative patterns in software development
    •  1.5 System-A and system-B, as two ways of shaping and building living environments
    • 1.6 Holons (from systems ecology)
  • 2. Dialectical Sensemaking
    • 2.1 Types of systems and models
    • 2.2 Autopoiesis and allopoiesis
    • 2.3 Economies as agricultural, industrial and services (coproduction)
  • 3. Narrative Synthesizing

In full, the abstract read:

Does a pattern language generate into (a) whole(s)? This workshop will discuss the meaning of architecting a system, complemented with recent research from the systems sciences.

In 1967, at the formation for Center for Environmental Structure, Pattern Manual specified that (sub)systems are fewer in number (and implicitly larger) than patterns:

The environmental pattern language will contain hundreds of subsystems and tens of thousands of individual patterns. Every conceivable kind of building, every part of every kind of building, and every piece of the larger environment will be specified by one or more subsystems of the environmental pattern language.

In summary: An environmental pattern language is a coordinated body of design solutions capable of generating the complete physical structure of a city.

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Evolving Pattern Language towards an Affordance Language (Almaden, 2018/05/09)

With a visit of one week at IBM Research Almaden with @rarar and @jimspohrer , I was invited to give a talk.  As an IBM alumnus who was active in pattern language community from the mid-1990s, this was an occasion to surface some history of science about activities inside the company that is otherwise opaque.  This history shapes my aspirations and predispositions towards continuing the development of pattern language in new domains.

The high-level agenda aimed to cover three parts:

  • 1. 1964 → 1999 → 2012:
    Synthesis of Form→OOPSLA 1996→Battle (Eishin)
  • 2. 1993 →2002→2006→2010:
    Hillside Group→IGS Method→AWB→Eclipse
  • 3. 2014 → … :
    Wicked Messes→Service Systems Thinking

Here’s the abstract sent in advance of my arrival:

Pattern language has its origins from architects of built physical environments. The approach was cross-appropriated into software development methods at the rise of object-oriented design, and was influential in the emerging styles with agile practices. The idea has been extended into social change. Are the philosophical foundations from the 1960s-1970s appropriate for the 21st century era of service science, and innovations in augmented intelligence?

The communities of interest on pattern language are coming together (i.e. PLoP and PUARL-Purplsoc are colocating in Portland, OR, in October 2018), coming from three historical subgroups.

The PUARL subgroup is led by former students of Christopher Alexander from the Center for Environmental Structure at Berkeley in the 1970s. They continue to work on “towns, buildings and construction”, with recent interests in large scale incidents (e.g.

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Negotiating Order with Generative Pattern Language

Positioning “A Pattern Language” more like “Creating Order of”, then “The Timeless Way of Building” more like “Negotiating Order with”, was a productive framing to discuss the systems theory inside Christopher Alexander’s thinking (as well as positioning “The Nature of Order“).

The purpose of a workshop on “Negotiating Order with Generative Pattern Language” at PLoP 2017 was to open up discussions that could deepen the foundational understanding in linkages between pattern language and systems thinking. At least three of us routed to Vancouver BC for a Monday morning start, in a quick trip from the Purplsoc meeting in Austria that finished on Saturday.  The PLoP program emphasizing writers’ workshops meant that our 90-minute dialogue didn’t conflict with any presentations.

On the audio recording, active participants in the sensemaking included Helene Finidori and Christian Kohls.  With a more relaxed pace, the open time after the slides were completed allowed some pattern language novices to also have questions answered.

PLoP 2017

The frame for discussion was slides that had previously been posted on the Coevolving Commons.

The digital audio recording has been matched up with slides, for a less ambiguous viewing as a web video.

For observers who prefer to be mobile, video files can be downloaded directly on a device.

Video H.264 MP4 WebM
Digital video
(1h38m45s)
[20171023_PLoP_Ing NegotiatingOrder HD 537kpbs m4v]
(HD 537Kbps 379MB) [on the Internet Archive]
[20171023_PLoP_Ing NegotiatingOrder nHD 214kpbs m4v]
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[20171023_PLoP_Ing NegotiatingOrder HD 348kpbs webm]
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[20171023_PLoP_Ing NegotiatingOrder nHD 168kpbs webm]
(nHD 168Kbps 119MB)

The downloadable audio recording includes the conversation of all participants.… Read more (in a new tab)

Exploring the Context of Pattern Languages

Pattern language is not for wicked problems, said Max Jacobson, coauthor with Christopher Alexander of the 1977 A Pattern Language: Towns, Building, Construction.  In addition, the conventional definition of an Alexandrian pattern as “a solution to a problem in context” when applied to social change might better use the term “intervention”, rather than “solution”.

These are two of the major ideas that emerged at Purplsoc 2017 conference last October.  A 90-minute workshop was run in parallel with other breakouts.

For about the first hour, vocal participants included Max Jacobson (who had given a plenary talk on “A Building is not a Turkish Carpet“), Christian Kohls (who gave a plenary talk on “Patterns for Creative Space“) and Peter Baumgarnter (one of the Purlpsoc chairs).

As an impetus to discussion, we stepped through slides that had been posted on the Coevolving Commons.

For people who would like the next-best experience to being there, the slides have now been matched up with the digital audio recording, for viewing as a web video.

For devices decoupled from the Internet, downloadable video files are portable.

Video H.264 MP4 WebM
Digital video
(1h22m51s)
[20171021_Purplsoc_Ing_Exploring HD_578kpbs m4v]
(HD 578Kbps 342MB) [on the Internet Archive]
[20171021_Purplsoc_Ing_Exploring nHD_477kpbs m4v]
(nHD 495Kkps 283MB)
[20171021_Purplsoc_Ing_Exploring HD_416kpbs webm]
(HD 416Kbps 246MB)
[20171021_Purplsoc_Ing_Exploring nHD_191kpbs webm]
(nHD 191Kbps 114MB)

The length of the conversation may encourage listeners to download an audio recording.

Audio
Digital audio
(1h22m51s)
[20171021_0930_Purplsoc_Ing ExploringTheContext mp3] (76MB)

In producing the multimedia, a digest of timecodes highlights some interesting conversation points.… Read more (in a new tab)

Multiparadigm Inquiry Generating Service Systems Thinking

What if a pattern language was opened up to contemporaneous research into wicked problems, the systems approach, ecological epistemology, hierarchy theory, and interactive value?  This 30-minute presentation at Purplsoc 2017 last October aimed to provide a broader context to a social change community focused on works of Christopher Alexander.

This talk was a complement to “Pattern Manual for Service Systems Thinking” presented a year earlier, at PUARL 2016.  Last year, the agenda was centered on the approach from Christopher Alexander, and divergences due to the changing in domain from the built environment to service systems.

The slides on the Coevolving Commons are dense.  I had showed them at the poster session in the day preceding, and promised to spend more time speaking to them in the workshop scheduled for the next day.

For 2017, the view looked beyond Alexander, to related research both at Berkeley, and elsewhere in the systems community.  The agenda was in 3 major sections (here expanded with more detailed overview of the middle section):

  • 1. What is multiparadigm inquiry?
  • 2. Where have (and might have) (1960s-2010s) paradigms influenced generative pattern language?
    • a. Over 50 years, Christopher Alexander and coauthors evolved concepts and language in built environments
    • b. At Berkeley: Churchman, Rittel and Alexander taught in 1960-1970s
      • i. “Systems Generating Systems”, Alexander (1968)
      • ii. “The Systems Approach and Its Enemies”, (Churchman, 1979)
      • iii. “Dilemmas in a General Theory of Planning”, (Rittel + Weber, 1973)
    • c.
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Pattern Manual for Service Systems Thinking

At the PUARL Conference 2016, a proposal was made on adapting pattern language for service systems thinking.  In 1967, Christopher Alexander published Pattern Manual at the founding of the Center for Environmental Structure, describing a pattern format for physical built environments.  While we can learn a lot from the nearly 50 years work originating at the CES, service systems have features beyond physicality that suggest reconsidering some of the foundations of pattern language.

An article for discussion was accepted into the proceedings for the PUARL conference.  The 20-minute presentation quickly covered the following topics:

  • 1. Pattern Manual 1967 + Service Systems
  • 2. Alexandrian example → services
  • 3. Methods clarified since 1973
  • 4. A new format:  amplifying, rephilosophizing, reinterpreting prior doxa
  • 5. Generating and legitimizing in communities

Slides have been added over the audio recording to produce a video presentation.

Audio [20161029_PUARL_Ing_PatternManualS2T.mp3]
(20MB, 20m19s)
[20161029_PUARL_Ing_PatternManualS2T_3db.mp3]
(volume boosted 3db, 20MB, 20m19s)
[20161029_PUARL_Ing_PatternManualS2T_6db.mp3]
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Video HD (20m19s)
H.264 MP4 [1280×720 384Kbps m4v]
(70MB)
[1280×720 5000Kbps m4v]
(76MB) [on archive.org]
WebM [1280×720 110Kbps webm]
(34MB)
[1280×720 826Kbps webm]
(153MB)

For people who prefer visuals at their own pace, the slides are posted on the Coevolving Commons.  The video is available on Youtube.

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