Product Perspective

http://www.chris-edwards.org/340/docs/SRS/node11.html

http://socialtapestries.net/snout/documentation/node83.html

http://webmaker.web.cern.ch/WebMaker/UserReq/Section-2-1.html

Ieee_Std_830-1998_-_Recommended_Practice_for_SW_Req._Spec.pdf