why do IT projects fail or succeed? (Need factors)?

Question

If you can give me some websites on this, it would be great.

Answer 1

www.wired.com (Wired Magazine) usually has articles about this, as do the IT magazines (google).

Usually: doesn't cover the required customer definitions or customer didn't define requirements well enough; not enough money was given and shortcuts were made; design wasn't feasible with exisitng technology/software and cobbling together didn't work; no baseline was done so no measurement of the final result could be made.