References

SAP Internal Communities

(February, 2008) Greenfield, D., SpigIT: an enterprise social network that’s fun and games , ZDNet Between the Lines.

(April, 2007) Farber, D., SAP internalizes social networking for business , ZDNet Between the Lines.
(August, 2007) Farber, D., SAP’s cautious Web 2.0 imagineering , ZDNet Between the Lines.

Brian Ellis, Jeffrey Stylos and Brad Myers. "The Factory Pattern in API Design: A Usability Evaluation", in Proceedings of 2007 International Conference on Software Engineering, pp. 302-312, 2007. Ellis2007FactoryUsability.pdf
J. Stylos, S. Clarke, and B. A. Myers, “Comparing API Design Choices with Usability Studies: A Case Study and Future Directions”, PPIG 2006. 18th-stylos.pdf