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 “solu […]
Christopher Alexander (pattern languages), Horst Rittel (wicked problems) and C. West Churchman (the systems approach) were neighbours on campus at U.C. Berkeley in the 1960s and 1970s. What might we synthesize from their joint wisdom?
On a multi-boot Linux computer where Ubuntu has already been installed, adding on Manjaro Linux installs its own version of Grub (that I’ll call Arch-Grub) that is different but compatible with that previously installed (that I’ll call Debian-Grub). Updating Ubuntu to a newer version (or installing an older version) restores Debian-Grub, replacing the workin […]
Lecture at UToronto iSchool, on four overlapping epochs in data history This digest was created in real-time during the meeting,based on the speaker’s presentation(s) and comments from the audience. The content should not be viewed as an official transcript of the meeting, but only as an interpretation by a single individual. Lapses, grammatical errors, and […]
I’ve been a fan of using @drawio to create SVG diagrams since early 2016, when I created maps for systems thinking course at Aalto U. in Finland. At that time, draw.io was freeware on many platforms (e.g. saving on Google Drive). On May 22, 2017, draw.io adopted the Apache 2.0 license, becoming fully open source […]
On Android Oreo tablet, reference links on my PDF book don’t show up via Adobe Acrobat nor Google PDF Reader. Links show up with qPDF Viewer, Foxit PDF Reader & Editor, and Xodo PDF Reader & Editor. Presumption of basic functionality by bigger names is untrue.
Under Ubuntu 16.04, building a PDF under TeXstudio worked. Under Kubuntu 17.10 (with pdfTeX 3.14159265-2.6-1.40.18 (TeX Live 2017/Debian)), running the same input files resulted in: ! LaTeX Error: File `textgreek.sty' not found. These seemed like an error with reported in Feb. 2015, as “texlive-latex-extra: missing dependency – textgreek.sty requires l […]
Plenary #cascon @DonnaExplorer IBM Fellow, IBM Research, Global leader of Enterprise Systems This digest was created in real-time during the meeting,based on the speaker’s presentation(s) and comments from the audience. The content should not be viewed as an official transcript of the meeting, but only as an interpretation by a single individual. Lapses, gra […]
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