Compute, the ES, LS, EF, LF, slack and draw the network diagram. In addition, identify the critical path.

Activity	Activity Description	Preceding Activities	Duration (Days)
A	Determine User Needs	-	2
B	Review Software and languages	-	2
C	Purchase Software	B	1
D	Design format and style	A,C	3
E	Write programs	D	5
F	Review Outcome product with user	E	1
G	Make revisions	F	2
H	Select server site	-	1
I	Install on server and test	G	2