software engg vs web engg

Hello people here,
Am a second year IT student and this year my project consist of developing a intranet web based application for a company.
During my 1st year of studies i was introduced about software engg and this has helped me a lot to do my 1st year project. I ve followed all the steps namely investigation,feasibility study, detailed analysis,system designed, implementation, testing etc.. to do my windows based project developed in vb.net.

Now with the web base application i'am a bit confused. Should i follow the same steps ie software engg or should i learn something else like web engineering for my project to b perfect and to respect deadlines?
Do u recommend me any books to read?

Thanks a lot for ur replies
cheers