1. Open Source Software Development Processes
Kirill Khistyaev
4/19/2011

2. General description of OSS Development Process (OSSDP)
Outline
Introduction to Open Source Software (OSS)
General description of OSS Development Process (OSSDP)
OSSDP in Science (Academia)
Conclusion 2

3. Introduction
Open Source Software (OSS) is a software whose source code may be freely studied, changed, improved and redistributed with few restrictions. 3

4. Introduction: Examples of OSS
Linux
Apache
Perl, Python, PHP, etc. languages
MySQL
Mozilla Firefox
Eclipse …. 4

5. Introduction
Nowadays many commercial organization have started to look towards OSS and OSSDP as a way to minimize their development efforts. 5

6. OSS Development Process
Traditional software development is like building a cathedral “carefully crafted by individual wizards or small bands of mages working in splendid isolation”
OSSDP is like “a great babbling bazaar of differing agendas and approaches”
Raymond, Eric S. ( ). "The Cathedral and the Bazaar". 6

7. OSS Development Process
Developers are end-users of the system
Early releases
Frequent Integration
Several versions
High modularization
Dynamic decision making structure 7

8. Infrastructure maintainer
OSSDP: Process Roles
User
Developer
Committer
Manager
Infrastructure maintainer
*Jacques Lonchamp, Open Source Software Development Process Modeling, in Software Process Modeling, S.T. Acuna, N. Juristo (Eds), Springer, 2005, pp 8

9. OSSDP: Process Roles
*Jacques Lonchamp, Open Source Software Development Process Modeling, in Software Process Modeling, S.T. Acuna, N. Juristo (Eds), Springer, 2005, pp 9

10. OSSDP: Community Process
*Jacques Lonchamp, Open Source Software Development Process Modeling, in Software Process Modeling, S.T. Acuna, N. Juristo (Eds), Springer, 2005, pp 10

11. OSSDP model
* Improving the Open Source Software Model with UML Case Tools, Gilliam, J.O., Linux Gazette, 67, June 2001. 11

12. Typically non-commercial Collaboration of many distributed groups
OSSDP in Science
OSSDP is the most suitable method for software development in academic environment
Typically non-commercial
Collaboration of many distributed groups 12

13. OSS is an important part of software world
Conclusion
OSS is an important part of software world
OSSDP process allows to develop successful projects
OSSDP has significant differences from commercial software developments
OSSDP is well suitable for scientific software 13

14. References
Jacques Lonchamp, Open Source Software Development Process Modeling, in Software Process Modeling, S.T. Acuna, N. Juristo (Eds), Springer, 2005, pp
Sebastian Prehn, Open Source Software Development Process, Term Paper, 2007
Judith Segal, Models of scientific software development. In: SECSE 08, First International Workshop on Software Engineering in Computational Science and Engineering, 13 May 2008, Leipzig, Germany.
Improving the Open Source Software Model with UML Case Tools, Gilliam, J.O., Linux Gazette, 67, June 2001,
Wikipedia,