Research
The challenge of libre software is not that of a new competitor who, under the same rules, produces software faster, cheaper and of a better quality. Libre software differs from traditional software in more fundamental aspects, starting with philosophical reasons and motivations, continuing with new economic and market rules and ending up with a different way of producing software. Software Engineering cannot ignore this phenomenon, and the last five years or so has seen ever more research into all these issues.
What I research can be seen at the Libre Software Engineering page.
No comment
PhD thesis
My PhD thesis has its own web page.
Articles and presentation slides
(This is kind of unsorted list. I use it for my own purposes and that's why it's ordered chronologically. Maybe some day I should change it and put it into a more formal way. Please, note these are my research works available in English. I've got some more in Spanish)
IMPORTANT NOTICE (August 2006): Due to a server crash, many of the PDFs listed below aren't accessible. If you want a paper, you can try first to google for it (you may find a copy around); if unsuccessful, don't hesitate to send me an e-mail. I promise to recompile all of them and put them again up in the next time. I'm sorry about this.
2006
- Beyond Executable Source Code: The Importance of Other Source Artifacts in Software Development (a Case Study) (PDF
)
with Jesús M. González Barahona and Juan Julián Merelo Guervós
Journal of Systems and Software
In Press. 2006 - Applying Social Network Analysis Techniques to Community-driven Libre Software Projects (draft PDF )
with Luis López, Jesús M. González Barahona and Israel Herraiz
International Journal of Information Technology and Web Engineering
In Press. July-September, 2006 - Contributor Turnover in Libre Software Projects (PDF )
with Jesús M. González Barahona
The Second International Conference on Open Source Systems (OSS2006)
Como, Italia
June 8-10 2006 - Assessing and Evaluating Documentation in Libre Software Projects (PDF )
with Juan Luis Prieto Martínez and Jesús M. González Barahona
Workshop on Evaluation Frameworks for Open Source Software (EFOSS 2006)
Como, Italy
June 10th 2006 - The Challenges of Automated Quantitative Analysis of Open Source Software Projects (PDF )
with Daniel Germán and Jesús M. González Barahona
Workshop on Evaluation Frameworks for Open Source Software (EFOSS 2006)
Como, Italy
June 10th 2006 - Effort estimation by characterizing developer activity (PDF )
with Juan José Amor and Jesús M. González Barahona
The 8th International Workshop on Economics-Driven Software Engineering Research (ESDER-8)
Shanghai, China
May 2006 - Mining Large Software Compilations over Time: Another Perspective of Software Evolution (PDF )
with Jesús M. González Barahona, Martin Michlmayr and Juan José Amor
International Workshop on Mining Software Repositories (MSR 2006)
Shanghai, China
May 22-23 2006 - Geographic Location of Developers at SourceForge (PDF )
with Jesús M. González Barahona
International Workshop on Mining Software Repositories (MSR 2006)
Shanghai, China
May 22-23 2006 - Entry Patterns in Global Distributed Software Projects (PDF )
with Israel Herraiz, Jesús M. González Barahona, Juan José Amor and Teófilo Romera
First International Workshop on Global Software Development for the Practitioner (GSD2006)
Shanghai, China
May 23rd 2006 - Position talk: How far can we get with SourceForge? (slides in PDF )
MiniOWLS Meeting
Paris, France
April 7th 2006 - Comparison between SLOCs and number of files as size metrics for software evolution analysis (PDF )
with Israel Herraiz, Jesús M. González Barahona, Juan F. Ramil and Andrea Capiluppi
10th European Conference on Software Maintenance and Reengineering
Bari, Italy
March 22-24 2006 - Empirical Software Engineering on Libre Software (PDF )
CALIBRE Project Room, Sixth Free and Open source Software Developers' European Meeting (FOSDEM 2006)
Brussels, Belgium
February 25th 2006 - Software Engineering Research on Libre Software: Data Sources, Methodologies and Results (PDF, slides used in the defense )
Doctoral Thesis (with European mention)
Universidad Rey Juan Carlos
Móstoles, Madrid
February 9th 2006
2005
- Book Chapter: Free Software Developers: Who, How and Why (abstract )
with Rishab A. Ghosh, Rüdiger Glott and Bernhard Krieger
Book: The Economics of the Digital Society (ISBN 1-84376-774-0)
November 2005 - Book Chapter: Libre Software in Europe ()
with Jesús M. González-Barahona
Open Sources 2.0: The Continuing Evolution
O'Reilly. ISBN: 0-596-00802-3
October 2005 - An Empirical Approach to Software Archaeology (poster PDF, short paper PDF, draft version of the full paper )
with Jesús M. González-Barahona and Israel Herraiz
21st International Conference on Software Maintenance (ICSM 2005)
Budapest, Hungary
25-30 September 2005 - Evolution and Growth in Large Libre Software Projects (PDF )
with Juan José Amor, Jesús M. González-Barahona and Israel Herraiz
International Workshop on Principles of Software Evolution (IWPSE 2005)
Lisbon, Portugal
September 5-6 2005 - Measuring Libre Software using Debian 3.1 (Sarge) as a Case Study: preliminary results (PDF )
with Juan José Amor, Jesús M. González Barahona and Israel Herraiz
Upgrade
August 2005 - Evolution of Volunteer Participation in Libre Software Projects: Evidence from Debian (abstract paper PDF )
with Jesús M. González-Barahona and Martin Michlmayr
The First International Conference on Open Source Systems
Genoa, Italy
July 11th to 15th 2005 - From Pigs to Stripes: A Travel Through Debian (PDF )
with Juanjo Amor, Jesús M. González Barahona and Israel Herraiz
DebConf5 (Debian Annual Developers Meeting)
Helsinki, Finland
July 8th to 15th 2005 - How to collaborate, as a normal user, in a libre software project (slides in PDF )
Summer School on Libre Software
Castellón, Spain
July 1st to 5th 2005 - Quo vadis, libre software? A look into Debian's past to see what future will bring (PDF )
with Diego Barceló
LinuxTag
Karlsruhe, Germany
June 22th to 24th 2005 - Measuring Woody: The Size of Debian 3.0 (PDF )
with Juan José Amor and Jesús M. González-Barahona
Technical Report (also available in the arXiv)
June 2005 - Developer Identification Methods for Integrated Data from Various Sources (PDF, slides )
with Jesús M. González Barahona
2nd Workhop on Mining Software Repositories (ICSE2005)
St. Louis, Missouri, USA
May 17th 2005 - The Impact of Libre Software in the Robotics Field (PDF, slides )
with Pablo Barrera, José María Cańas, Francisco Martín and Vicente Matellán
5th Workshop on Open Source Software Engineering (ICSE2005)
St. Louis, Missouri, USA
May 17th 2005 - Towards Predictor Models for large Libre Software Projects (PDF, slides )
with Israel Herraiz and Jesús M. González Barahona
PROMISE 2005: International Workshop on Predictor Models in Software Engineering (ICSE2005)
St. Louis, Missouri, USA
May 15th 2005 - Self-Organized Development in Libre Software: a Model based on the Stigmergy Concept (PDF extended abstract, PDF full paper, slides in PDF )
with Juan Julián Merelo and Jesús M. González Barahona
6th International Workshop on Software Process Simulation and Modeling (ProSim 2005) (ICSE2005)
St. Louis, Missouri, USA
May 14th and 15th 2005 - Challenges in Software Evolution: The Libre Software Perspective (PDF )
with Jesús M. González Barahona and Israel Herraiz
Challenges in Software Evolution (ChaSE) Workshop
Berne (Switzerland)
April 12th and 13th 2005 - Software Engineering Academic Research on Libre Software (PDF )
KDE Developer Room, Fifth Free and Open source Software Developers' European Meeting (FOSDEM 2005)
Brussels, Belgium
February 27th 2005 - CVSAnalY: An analysis tool for your CVS and Subversion repository (PDF )
with Álvaro Navarro
CALIBRE Project Room, Fifth Free and Open source Software Developers' European Meeting (FOSDEM 2005)
Brussels, Belgium
February 26th 2005 - Evolution of Debian GNU/Linux over the last 7 years: from developers to programming languages (PDF )
with Diego Barceló
CALIBRE Project Room, Fifth Free and Open source Software Developers' European Meeting (FOSDEM 2005)
Brussels, Belgium
February 26th 2005 - Abbreviated Dynamic Source Routing: Source Routing with Non-Unique Network Identifiers (PDF )
con Miguel Ortuńo Pérez, Vicente Matellán Olivera y Luis Rodero
Second Annual Conference on Wireless On demand Network Systems and Services (WONS 2005)
St. Moritz, Switzerland
19-21 January 2005
2004
- On Libre Software Engineering (transcription of the talk )
with Jesús M. González Barahona
V International Conference of UNIX at Uninet
#linux channel in the irc.uninet.edu IRC sever
December 20th 2004 - Toy Story: The evolution from Debian 2.0 to 3.1. Preliminary Results (slides PDF )
with Juan José Amor
Libre Software Engineering Research Seminar
Universidad de Zaragoza
December 2nd 2004 - Software Comprehension in 'Libre' Software (slides in PDF )
with Israel Herraiz
Libre Software Engineering Research Seminar
Universidad de Zaragoza
December 2nd 2004 - Encouraging Good Practice in the use of Open Source Software in Public Administrations (PDF )
with Rishab A. Ghosh, Rüdiger Glott and Patrice-Emmanuel Schmitz
Guideline for Public Administrations on Partnering with Free Software developers
Advice Report for the European Commision (Enterprise Directorate General IDA/GPOSS)
October 2004 - Executable source code and non-executable source code: analysis and relationships (Draft version available in PDF )
with Jesús M. González-Barahona
to appear in the Proceedings of the 4th IEEE International Workshop on Source Code Analysis and Manipulation (SCAM'2004)
Chicago, IL, USA.
14th and 15th September 2004. - Free Software Developers: Who, How and Why (to appear soon)
with Rishab A. Ghosh, Rüdiger Glott and Bernhard Krieger
University of Maastricht
September 2004 - Introduction to (social) network analysis (slides in PDF
)
Technical journey Virtual communities: libres software and blogosphere
Móstoles, Madrid
July 2nd 2004 - Quantitative Software Evolution Measurements within Open Source projects (slides in PDF )
for the OU Computing Department Seminar
Open University, Milton Keynes, UK
June 30th 2004 - Getting the global picture (abstract in HTML and PDF, slides in PDF )
with Jesús M. González Barahona
for the Oxford Workshop on Libre Software
Oxford Internet Institute, Oxford, UK
June 25th 2004 - Analyzing the anatomy of GNU/Linux
distributions: methodology and case studies (Red Hat and Debian) (more information)
with Jesús M. González-Barahona, Miguel A. Ortuńo-Pérez, Luis Rodero-Merino, José Centeno-González, Vicente Matellán-Olivera, Eva Castro-Barbero and Pedro de-las-Heras-Quirós.
Chapter included in the book Free/Open Source Software Development (available at request, see contact information)
edited by Stefan Koch for the Idea Group Inc.
July 2004 - Toy Story: an analysis of the evolution of Debian GNU/Linux (Draft version available in PDF, web site with results and stats)
with Jesús M. González-Barahona
June 2004 - Remote analysis and measurement of libre software systems by means of the CVSAnalY tool (PDF )
with Stefan Koch and Jesús M. González-Barahona
2nd ICSE Workshop on Remote Analysis and Measurement of Software Systems (RAMSS '04)
26th International Conference on Software Engineering (Edinburgh, Scotland)
May, 24th 2004 - Community structure of modules in the Apache project (PDF )
Figures from this article appeared in the weekend magazine of the Frankfurter Allgemeine Zeitung March 2005 (see on-line or PDF versions)
with Luis López and Jesús M. González-Barahona
4th Workshop on Open Source Software Engineering
26th International Conference on Software Engineering (Edinburgh, Scotland)
May 25th 2004 - Applying Social Network Analysis to the Information in CVS Repositories (PDF )
with Luis López and Jesús M. González-Barahona
Mining Software Repositories Workshop
26th International Conference on Software Engineering (Edinburgh, Scotland)
May 25th 2004 - GlueTheos: Automating the Retrieval and Analysis of Data from Publicly Available Repositories (PDF )
with Jesús M. González-Barahona and Rishab Aiyer Ghosh
Mining Software Repositories Workshop
26th International Conference on Software Engineering (Edinburgh, Scotland)
May 25th 2004 - A Software Engineering Approach to Libre Software (PDF , PDF )
Chapter for the Open Source Jahrbuch 2004 book (mostly in German)
edited by the Fachbereich "Informatik und Gesellschaft" at the Technische Universität Berlin
March 2004
2003
- Free Software Engineering: A Field to Explore (PDF)
with Jesús M. González-Barahona
Upgrade, digital journal of CEPIS (Council of European Professional Informatics Societies)
Vol. IV, issue no. 4, ISSN 1684-5285, páginas 49 a 54, available online
August 2003 - Unmounting the "code god" assumption (position paper in PDF)
with Jesús M. González-Barahona
4th International Conference on eXtreme Programming and Agile Processes in Software Engineering
Dipartimento di Informatica, Sistemistica e Telematica, Génova, Italia
Wednesday, May 28th 2003 - Studying the evolution of libre software projects using publicly available data (paper en PDF)
with Jesús M. González-Barahona, José Centeno-González, Vicente Matellán-Olivera y Luis Rodero-Merino
3rd Workshop on Open Source Software Engineering at the 25th International Conference on Software Engineering
Portland, Oregon, USA
Saturday, May 3rd 2003
2002
- The FLOSS Study: Knowing more about FLOSS and its developers (slides: HTML, OOo Impress, PDF)
Technical Journey: Libre Software as a matter of study
Friday, December 13th 2002 - Libre Software Engineering - An alternative view of Software Engineering (slides: HTML, tar.gz).
2nd Oekonux Conference
Technische Universtität Berlin
November 2nd 2002 - Survey of Developers - Annexure on validation and methodology (HTML, PDF)
with Rishab A. Ghosh, Rüdiger Glott and Bernhard Krieger
Final Report for the European Commission IST founded FLOSS project
FLOSS - Free/Libre/Open Source Software. Survey and Study
International Institute of Infonomics - University of Maastricht
October 2002 - Software Source Code Survey (HTML, PDF)
with Rishab A. Ghosh and Rüdiger Glott
Final Report for the European Commission IST founded FLOSS project
FLOSS - Free/Libre/Open Source Software. Survey and Study
International Institute of Infonomics - University of Maastricht
June 2002 - Survey of Developers (HTML, PDF)
with Rishab A. Ghosh, Rüdiger Glott and Bernhard Krieger
Final Report for the European Commission IST founded FLOSS project
FLOSS - Free/Libre/Open Source Software. Survey and Study
International Institute of Infonomics - University of Maastricht
June 2002 - Open Source Software in the Public Sector: Policy within the European Union (HTML, PDF)
with Rishab A. Ghosh, Bernhard Krieger and Rüdiger Glott
Final Report for the European Commission IST founded FLOSS project
FLOSS - Free/Libre/Open Source Software. Survey and Study
International Institute of Infonomics - University of Maastricht
June 2002
2001