SDLC

One can go through the contents at following page to get basics of SDLC

http://www.scribd.com/doc/22357919/Sdlc-Models-in-detatail

Karnaugh Map

Can get the concept from here

http://www.facstaff.bucknell.edu/mastascu/eLessonsHTML/Logic/Logic3.html

Use It After Testing

It is based in number system concept. Few errors have been injected. Use it only after testing-- white box or black box.
http://www.scribd.com/doc/28072106/