The conference program is led by three renowned keynote speakers: Phil Bourne, founding editor of PLOS, will talk about the era of open, Pockey Lam, of the Digital Freedom Foundation, will talk about open education, and Dario Taraborelli, of the Wikimedia Foundation, will talk about current and future Wikipedia research.
7th International Workshop on Foundations and Techniques for Open Source Software Certification (OpenCert 2013), Monday 23 September 2013, Madrid, Spain, http://opencert.iist.unu.edu, at the 11th International Conference on Software Engineering and Formal Methods (SEFM 2013), September 25-27, 2013, Madrid, Spain, http://antares.sip.ucm.es/sefm2013
Context / Objectives
Over the past decade, the Open Source Software (OSS) phenomenon has had a global impact on the way software systems and software-based services are developed, distributed and deployed. Widely acknowledged benefits of OSS include reliability, low development and maintenance costs, as well as rapid code turnover. Linux distributions, Apache and MySQL server, and Moodle LMS are, among many other examples, a testimony to its success and resilience.
The English Wikipedia is currently embroiled in a debate on sexism (local copy), because of classifying female American novelists as “American Women Novelists” while leaving male American novelists in the more general category “American Novelists”, suggesting a subordinate role of female novelists. I find this debate regrettable for the apparent sexism but also interesting for the technology underlying such changes, which I would like to focus on here.
With technology, I mean bureaucratic practices, conceptual modeling of the world and Wikipedia content, and software tools to support changes to those models.
Abstract: Every open source project needs to decide on an open source license. This decision is of high economic relevance: Just which license is the best one to help the project grow and attract a community? The most common question is: Should the project choose a restrictive (reciprocal) license or a more permissive one? As an important step towards answering this question, this paper analyses actual license choice and correlated project growth from ten years of open source projects. It provides closed analytical models and finds that around 2001 a reversal in license choice occurred from restrictive towards permissive licenses.
Keywords: Open source; open source license; software license; open source project growth
Reference: Gottfried Hofmann, Dirk Riehle, Carsten Kolassa, Wolfgang Mauerer. “A Dual Model of Open Source License Growth.” In Proceedings of the 9th International Conference on Open Source Systems (OSS 2013). Springer Verlag, 2013, to appear.
Abstract: Commercial open source software has become an important part of the packaged software product industry. This paper provides a model of individual product features, rather than full-fledged business models, and their perceived value to customers. The model is the result of a three-iteration study, including interview analysis, literature review and the implementation of an empirical survey. Companies can use the feature model to determine their products and business model.
Keywords: Commercial open source; software product features
Reference: Florian Weikert, Dirk Riehle. “A Model of Commercial Open Source Software Product Features.” In Proceedings of the 4th International Conference on Software Business (ICSOB 2013). Springer Verlag, 2013, to appear.
Zum zweiten Mal veranstaltet die Johannes Kepler Universität Linz und die Open Commons Region Linz den Open Commons Kongress. Der heurige Titel lautet “OC13: Lernen und Leben mit digitalen Gemeingütern”. Die Veranstaltung findet am Dienstag, 14. Mai im Wissensturm statt.
The 20th Conference on Pattern Languages of Programs
October 23–26, 2013—Allerton Park, Monticello, IL, USA
The International Conference on Pattern Languages of Programs
April 1994: Members of the small, eclectic, and informal Hillside group gathered in Ben Lomond, California, for their yearly retreat and in the redwoods that Spring hatched a plan that was PLoP 1994. In response to the criticism that by putting together such an unconventional conference they would show they didn’t know what they were doing, one of them suggested, “then let’s pretend to know.”
To celebrate its 20th anniversary, PLoP in 2013 will return to its first home, Allerton Park, and the conference program will include a variety of special events alongside the usual PLoP fare.
I’m at SOFSEM 2013, where I’ll present my current stock research talk: “Best of Our Empirical Open Source Work.” It is an invited talk. I’ve given it a few times now and expect to do many more during the course of 2013. Here is the abstract of this “best-of” talk:
Open source software is publicly developed software. Thus, for the first time, we can broadly analyse in data-driven detail how people program, how bugs come about, and how we could improve our tools. In this talk, I’ll review six years of our open source empirical (data) research and highlight the most interesting insights, including how different (or not) open source is from closed source programming.