A COLLABORATIVE TAXONOMY FOR TECHNOLOGY - LoadSpring Solutions lists
six levels, four data types and eight categories of tools in technology collaboration for a
useful taxonomy:

Levels:
Collaboration Level 1 Messaging And Calendaring
Collaboration Level 2 Project Management
Collaboration Level 3 Data Management
Collaboration Level 4 Neutral Data Access
Collaboration Level 5 Native Data Access
Collaboration Level 6 Real Time Design Reviews

Data Types:
1) Objects
2) Documents
3) Conversations
4) Tasks
(While most of the tools have functions that would fit in other categories in this taxonomy,
their major functionality is still in one category.)

Eight Tool Categories:
1. e-Learning
2. Real time collaboration tools (RTC) (audio, video and data conferencing)
3. Project management tools (DPM) (including knowledge management (KM))
4. Collaborative portals
5. Collaborative CRM (customer resource management)
6. e-Community
7. Virtual workplace and process (asynchronous collaboration tools and workflow)
8. Unified and wireless (the underling infrastructure to support collaboration)
(LoadSpring Solutions, Inc., http://www.loadspring.com) in Collaborate Newsletter
vol. 2 no 6, 15 Mar 02)