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Open Source Softwarefinal 2

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Transcript

  • 1. Open Source Software
    TahaPatni
    Hector Lopez Valencia
    December 11th 2009
  • 2. Table of Contents
    What is Open Source Software
    History
    Open Source Definition
    Open Source Licensing
    Open Source vs. Other Software
    How Open Source Software is developed
    Pros and Cons
    Conclusion
    References
    Thank You and Questions
  • 3. What is Open Source Software
    Open Source Software:
    “Open source usually refers to software that is released with source code under a license that ensures that derivative works will also be available as source code, protects certain rights of the original authors, and prohibits restrictions on how the software can be used or who can use it.”(1)
  • 4. History
    Open Source Movement
    Launched in 1998 By Eric S Raymond and others
    Free Software was too ambiguous
    Open Source Definition was Introduced
    OSI was formed (2)
  • 5. Common open source software
    Firefox
    VLC media player
    Thunderbird
    phBB bulletin boards
    Bittorrent
    Linux
  • 6. Open Source Definition
    • Free Redistribution
    • 7. Source Code
    • 8. Derived Works
    • 9. Integrity of the Author’s Source Code
    • 10. No Discrimination Against Person or Groups
    • 11. No Discrimination of Fields Endeavour
    • 12. Distribution of License
    • 13. License must not be Specific to a Product
    • 14. License must not restrict other Software
    • 15. License must be Technology Neutral (2)
  • Open Source License
    A license defines the rights and obligations that a licensor grants to a licensee. Open Source licenses grant licensees the right to copy, modify and redistribute source code (or content). These licenses may also impose obligations. (4)
    The License decides the Rules the community Lives by
    Choosing the Right License
    Outside Contribution
    Proprietary Forks (5)
    OSI Approves all Software’s License
  • 16. Most Common licenses
    Apache License: 2.0
    BSD Licenses
    GNU General Public Licenses (GPL)
    GNU Library or “Lesser” General Public License
    MITT License
    Mozilla Public License (MPL)
    Eclipse Public License
  • 17. Major Differences in Licenses
    Each License decides how your software is going to be used
    Some Licenses always remain free (GPL)
    Business Friendly Licenses (BSD, Apache)(9)
  • 18. Open Source Software Vs Other Software
    Closed Source/Proprietary
    No Source Code Available to view
    Cost Involved
    Includes Technical Support
    No Modifications Allowed
    Source Available
    Only Able to View The Code
  • 19. Open Source Software Vs Others CONTD
    Free Software
    All Free Software's are OSS
    Ambiguity of the term
    Social and Moral(8)
  • 20. How The Open Source Software is developed
    6
  • 21. Pros and Cons
    PROS
    Less cheaper
    Easier Bug Fixes
    Improved Security with Easy Fixes
    Flexible Choice for Vendors (6)
    • CONS
    Easily access to Hackers
    Some Software aren’t Compatible
    Use At Own Risk
    No Product Support (7)
  • 22. Conclusion and why should you care?
    With Open Source Software you can
    Share Open Source Programs
    Develop in a group
    Less problems, Improved Software’s, Better features
    New Business Opportunities
  • 23. References
    (1) http://onlamp.com/onlamp/2005/09/15/what-is-opensource.html
    (2) http://oss-broschuere.berlios.de/broschuere/broschuere-en.html
    (3) http://opensource.org/docs/osd
    (4) http://en.wikipedia.org/wiki/Open_source_software#cite_note-4
    (5) http://www.airs.com/ian/essays/licensing/licensing.html
    (6) http://www.cippic.ca/open-source/
    (7) http://www.helium.com/items/111610-the-pros-and-cons-of-open-source-software
    (8) http://www.gnu.org/philosophy/free-sw.html
    (9) http://www.supportforge.biz/content/view/16/33/
    (10) http://is.pasok.gr/si/software.html
  • 24. Thank You!Any questions?