Exhibit A: Work Breakdown Structure and Activities for the Cell Phone Design Project

MAJOR SUBPROJECTS/ACTIVITIES	ACTIVITY IDENTIFICATION	DEPENDENCY	DURATION (WEEKS)
Product Specifications (P)
Market research	P1		1
Overall product specifications	P2	P1	3
Hardware	P3	P2	4
Software	P4	P3	4
Supplier specifications (S)
Hardware	S1	P4	4
Software	S2	P4	6
Product design (D)
Battery	D1	S1	1
Display	D2	S1	3
Camera	D3	S1	1
Outer cover	D4	D1, D2, D3	3
Product integration (I)
Hardware	I1	D4	5
User interface	I2	D2	3
Software coding	I3	I2	3
Prototype testing	I4	I1, I3	3
Subcontracting (V)
Suppliers selection	V1	S1 ,S2	9
Contract negotiation	V2	I4, V1	1

Find the activities that are on the critical path for completing the project in the shortest time.

options:

a)	P1-P2-P3-P4-S1-D3-D4-I1-I4-V2

b)	P1-P2-P3-P4-S2-V1-V2

c)	P1-P2-P3-P4-S1-D1-D4-I1-I4-V2

d)	P1-P2-P3-P4-S1-D2-D4-I1-I4-V2

Determine the minimum number of weeks for completing the project (i.e., critical path)?

options:

a)

32

b)

31

c)

27

d)

30