Open source software has become widely adopted by libraries as both integrated library systems and other applications. There are strengths and weaknesses to both developing open source software internally ("build") versus purchasing commercial options or borrowing existing open source code to customize ("buy" or "borrow"). Building requires significant technical resources but allows for total customization, while buying relies on vendors for support but reduces the technical burden. Overall, open source aligns with library values of sharing knowledge and being open to all.

1. Open Source Softwarein LibrariesHolly PhillipsMLIS 7505Valdosta State University

2. “The open source community is a natural ally of the library community. Both try to enrich their members through sharing and disseminating knowledge, and both are open to everyone, private or public, commercial or non-commercial.” - Evergreen Web sitewww.open-ils.org

3. BackgroundOSS linked to early computer daysSoftware was shared, programmers paid for programming services OSS model replaced by limited access = $$OS Initiative created in 1998 allowed user to:make and distribute copies of programsview the source code of softwaremake improvements to programOS does not necessarily mean free- just that users have the freedom of above rights

4. Open Source in LibrariesContent Management SystemsDrupalWordPressMediaWikiWork station software applicationsDocument processing, PDF creators, database organization softwareMedia playersPhoto/video editingOperating systemsIntegrated Library SystemsEvergreenKoha

5. Strengths and WeaknessesBuild BuyProsTotal customizationQuick response to issuesConsNeed highly technical staffTime involved to create and work out bugsDifficult for migration/expansion ProsFree from burden of creating and maintainingLess need for tech staffConsDependent on vendorTime delay on issue resolutionMust wait for next version release and hope for the best

6. BorrowProsCan make changes to software to fit needsDeveloped in the openCost effectiveMore choiceQuicker updates and issue resolutionConsMay need tech staffMay feel less secure about tech support

7. “Open source… was developed in the open, not secretly by a small group. Many eyes looking at software makes better code.”- Molyneux (2009)