The impact of open source software on web services transcends simply the use of actual open-source components; moving to a web services-based architecture requires a cultural shift in an organizations governance and application lifecycle management processes. Open source community development processes have proven to be useful in addressing the natural impediments to this level of organizational cultural change. In this regard, open source is impacting the success of SOA adoption. In this session we will examine how open source (collaborative) development processes, community management, and licensing enable organizations to make the transformation from traditional LAN-based client server architectures to WAN-based SOA.