I was researching larger Moodle installations when I came across this great site for the New Zealand Open Source Virtual Learning Environment Project (NZOSVLE).
The Objectives & Principles of NZOSVLE Project were:
Significantly reduce the total cost of ownership at a system wide-level
Select and contribute to open source communities – avoid forks
Encourage collaboration and user networks
Reduce to barriers to entry: technology, support & professional development
Accommodate flexible pedagogical approaches
Support localisation – including Maori and
Advocate for interoperability
Catalyst for innovation
The choose Moodle because:
Open and active community (critical mass). Good developer and end-user documentation.
Modular system architecture
Relatively easy to integrate with other systems
Course / student centred rather than tool-centric
Adaptability – allows instructors to adjust courses on the fly