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.
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? Continue reading “Interdisciplinary Research on Wiki Communities Workshop”
Author: Dirk Riehle
Abstract: Open source software has changed the rules of the game, impacting significantly the economic behavior of stakeholders in the software ecosystem. In this new environment, developers strive to be committers, vendors feel pressure to produce open source products, and system integrators anticipate boosting profits.
Reference: IEEE Computer, vol. 40, no. 4 (April 2007). Page 25-32. Available as a PDF file or in HTML.
(This is a repost due to popular demand.)
Authors: Martin Junghans, Dirk Riehle, Rama Gurram, Matthias Kaiser, Mário Lopes, Umit Yalcinalp
Abstract: Today’s wiki engines are not interoperable. The rendering engine is tied to the processing tools which are tied to the wiki editors. This is an unfortunate consequence of the lack of rigorously specified standards. This paper discusses an EBNF-based grammar for Wiki Creole 1.0, a community standard for wiki markup, and demonstrates its benefits. Wiki Creole is being specified using prose, so our grammar revealed several categories of ambiguities, showing the value of a more formal approach to wiki markup specification. The formalization of Wiki Creole using a grammar shows performance problems that today’s regular-expression-based wiki parsers might face when scaling up. We present an implementation of a wiki markup parser and demonstrate our test cases for validating Wiki Creole parsers. We view the work presented in this paper as an important step towards decoupling wiki rendering engines from processing tools and from editing tools by means of a precise and complete wiki markup specification. This decoupling layer will then allow innovation on these different parts to proceed independently and as is expected at a faster pace than before.
Reference: In Proceedings of the 2008 International Symposium on Wikis (WikiSym ’08). ACM Press, 2008: Article No. 21.
Available as a PDF file.
In the last few days, I’ve been reading up on author obfuscation. By “author obfuscation” I mean tools and techniques that will ensure an author’s anonymity when posting a blog entry or writing a document. You might think that not giving your name or writing under a pseudonym may be sufficient, but I don’t think this will stand the test of time. Specifically, if you are writing a blog under a pseudonym, you are creating a large corpus of text, all of which is being archived, and ten years from now smart algorithms may be able to correlate those postings with other work by you that identifies you as an author of the blog. Continue reading “Author Obfuscation”
The use of wikis in software engineering dates back to 1995, when Ward Cunningham created the first ever wiki as a platform for discussing patterns and software development efforts. The simplicity and effectiveness of wikis as a medium for collaborative authoring has lead to their vast popularity across many domains.
This workshop aims to bring together researchers, practitioners, and enthusiasts interested in exploring the potential of wikis as an effective tool to support software engineering activities. Specifically, it is an opportunity to: Continue reading “Wikis for Software Engineering Workshop”
On their blogs, Matt Asay and Savio Rodrigues are discussing whether IBM is using open source to diminish competitor margins. I think it is obvious that IBM does this, most notably with its Linux engagement, which is squarely directed against Microsoft (Windows). It is what I call a war over the share of customer’s wallet, and open source plays a major role. The graph below shows how it works. Continue reading “Open Source in the Share of Wallet Wars”
Title: Open Source Businesses and Developer Careers: Who Benefits from Open Source? How and Why?
Presenter: Dirk Riehle
Abstract: Open source is changing how software is built and how money is made. This talk discusses the economics of open source software from the start-up firm, the system integrator, and the software developer perspective. The talk provides a strategy framework and discusses its implementation using the dual-license strategy. It explains how system integrators use open source in the share-of-wallet wars. Finally, open source defines a new developer career. This talk explains this new career and argues that it creates economic value for some while it makes life harder for others.
Reference: Main stage presentation (invited talk) at the Agile 2008 conference. Toronto, Canada: 2008.