R. Barker and C. Method, Tasks and Deliverables, 1990.

I. Jacobson, G. Booch, and J. Rumbaugh, The Unified Software Development Process, 1999.

A. Cockburn, Writing Effective Use Cases, 2001.

H. Lindsey and P. R. Hoffman, Bridging traditional and object technologogies: Creating transitional applicartion, IBM Systems Journal. Vol, vol.36, issue.1, 1997.
DOI : 10.1147/sj.361.0032