Thanks to the efforts of Joe Yoder and Ralph Johnson, the proceedings of the 2006 conference on Pattern Languages of Programming have been archived in the ACM Digital Library. I expect the 2007 and future proceedings to be made available through the ACM DL as well. Whether it will be applied to past years is unclear.
What is the most common size of code contributions to open source? Maybe 30 lines of source code? 200 lines? Or just one line? What’s your guess?
Authors: Oliver Arafat, Dirk Riehle
Abstract: With the growing economic importance of open source, we need to improve our understanding of how open source software development processes work. The analysis of code contributions to open source projects is an important part of such research. In this paper we analyze the size of code contributions to more than 9,000 open source projects. We review the total distribution and distinguish three categories of code contributions using a size-based heuristic: single focused commits, aggregate team contributions, and repository refactorings. We find that both the overall distribution and the individual categories follow a power law. We also suggest that distinguishing these commit categories by size will benefit future analyses.
Reference: In Proceedings of the 42nd Hawaiian International Conference on System Sciences (HICSS-42). IEEE Press, 2009. Page 1-8.
Available as a PDF file.
Wikipedia is the free online encyclopedia that has taken the Internet by storm. It is written and administered solely by volunteers. How exactly did this come about and how does it work? Can it keep working? And maybe more importantly, can you transfer its practices to the workplace to achieve similar levels of dedication and quality of work? In this presentation I describe the structure, processes and governance of Wikipedia and discuss how some of its practices can be transferred to the corporate context.
This presentation represents the next step in the evolution of two Wikimania tutorials/workshops, see Presentations/Tutorials. If the slideshow doesn’t play, please use the PDF file download below.
Reference: Dirk Riehle. “Learning from Wikipedia: Open Collaboration within Corporations.” Invited talk at Talk the Future 2008. Krems, Austria: 2008.
The slides are available as a PDF file.
Author: Dirk Riehle, SAP Research, SAP Labs LLC
Reference: Steven Fraser (editor). “Escaped from the Lab: Innovation Practices in Large Organizations.” In Companion of the 2008 Conference on Object Oriented Programming, Systems, Languages, and Applications (OOPSLA ’08). ACM Press, 2008: Pages 787-790.
Available as a PDF file; my part follows as HTML below.
Position statement for the OOPSLA 2008 Panel on Innovation Practices in Large Corporations
In most companies, the innovation process is organized as follows: A research unit suggests to build a prototype of some innovative product or feature, a line-of-business sponsor signs off on the project, the research unit develops the prototype, a product unit receives it and turns it into a real product.
The critical point is the transfer from research to product unit. Here, many things can go wrong, for example:
How we develop open source software can vary widely from project to project. However, the roles we play are similar across projects: user, developer, tester, documenter, committer, etc. For a while now, I have been interested in what open source means for software developer careers, in particular with respect to fame and fortune. The figure below illustrates some of this thinking:
This is a professional blog, so I usually leave humorous excursions into my life to my personal blog. Well, unless there is good reason for an exception. Today was such a day. That’s because today to much fanfare a new search service, improbably named CUIL was launched. A friend alerted me to the observation that searching CUIL for Dirk Riehle delivers (among other things) the following search result:
Title: End-User Programming with Application Wikis: A Panel with Ludovic Dubost, Stewart Nickolas, and Peter Thoeny
Author: Dirk Riehle
Abstract: Wikis empower users to collaborate with each other using prose. Users imprint data structures and processes onto wiki pages using social and technical conventions. Application wikis enhance wiki engines with lightweight programming features that aid in making data structures and processes explicit. Using these features, end-users can program a wiki to better support them in their collaborative processes and integrate their work into the overall IT infrastructure. Application wikis make database access and business process integration easy from within the wiki while maintaining the wiki-style of collaborative work. The panelists of this panel, together with the audience and the moderator, will review existing work and explore future research directions in application wikis.
Reference: In Proceedings of the 2008 International Symposium on Wikis (WikiSym ’08). ACM Press, 2008: Article No. 4.
Available as a PDF file.
For your information, a workshop on interdisciplinary research on wiki communities.
CALL FOR PAPERS
First Workshop on “Interdisciplinary Research on Wiki Communities”, on September 8, 2008, at WikiSym 2008, Porto, Portugal, September 8-10, 2008
The array of approaches to studying wikis is a source of wealth but also a possible source of confusion: What are appropriate methodologies for the analysis of wiki communities? Which are the most critical parameters (both quantitative and qualitative) for study in wiki evolution and outcomes? Is it possible to find effective interdisciplinary approaches to augment our overall understanding of these dynamic creative environments?
The pre-publication version of this paper has been superseded by the final copy-edited version.