Question

5. For the tolowing project petwork the tmes for each actvity are listed m tbe tatla below. Thare should be circles and arrows cornecting some of the circles, in the diagram below. If these are not visible or did not prirt, please request assistance. The following diagram is an AON (Activity on Node). The AOA (Activity on Arrow) equivalent of this is on the next page. Contimue to the next page to ind the critical path method table to fill in You can use either type of diagram, whichever you feel more comfortable using AON: A. End Start

c. (5 points) If time is measured in days, what is the minimum number of days the project can be completed?

Answer 1

Activity	Predecessor	Duration	ES	EF	LS	LF	Slack
A	-	9	0	9	-3	6	-3
B	-	6	0	6	2	8	2
C	A	10	9	19	6	16	-3
D	B	4	6	10	12	16	6
E	B	8	6	14	8	16	2
F	A	7	9	16	28	35	19
G	C,D	8	19	27	16	24	-3
H	B	5	6	11	25	30	19
I	E	13	14	27	16	29	2
J	F	4	16	20	35	39	19
K	G	15	27	42	24	39	-3
L	H	9	11	20	30	39	19
M	I	10	27	37	29	39	2
N	J,K,L,M	4	42	46	42	46	0
O	J,K,L,M	10	42	52	39	49	-3
P	N	3	46	49	46	49	0
		Critical Path=A-C-G-K-N-O-P
FIVE ACTIVITIES HAVE NEGATIVE SLACK INDICATING THE ACTIVITIES ARE EXTREMELY CRITICAL AND NEED TO BE BROUGHT
UNDER CONTROL TO SAVE THE TIME TO COMPLETE THE JOB ON SCHEDULE.
THIS IS DUE TO ACTIVITIES HAVING MULTIPLE PREDECESSORS AND MAY REQUIRE RESCHEDULING TO SUCCESSFULLY COMPLETE JOB ON SCHEDULE
The minimum number of days=49+3+3+3+3+3=64 days to complete as the activities with the negative slack will increase the time by 3 days each