Exhibit 4.13: Work Breakdown Structure and Activities for the Cell Phone Design Project Battery Display Camera Outer cover MAJOR SUBPROJECTS/ACTIVITIES Product Specifications (P) ACTIVITY IDENTIFICATION DEPENDENCY Market research Overall product specifications Hardware Software Supplier specifications (S) Hardware Software Product design (D) P1 P2 P3 P4 LgY P1 P2 P3 DURATION (WEEKS) S1 P4 S2 P4 2455 56 D1 S1 D2 S1 D3 S1 D4 D1, D2, D3 Product integration (I) Hardware I1 D4 User interface Software coding Prototype testing 12 D2 12 14 I1, 13 Subcontracting (V) Suppliers selection Contract negotiation 55 V1 S1,S2 10 1414 3565 1 V2 14, V1 2 a. Calculate the start and finish times for each activity. (Leave no cells blank - be certain to enter "0" wherever required.) Activity Earliest Start Time Earliest Finish Time Latest Start Time Latest Finish Time P1 0 2 0 2 P2 2 6 2 6 P3 6 11 6 11 P4 11 16 11 16 S1 16 16 21 S2 16 21 D1 21 22 D2 21 25 D3 21 22 D4 25 29 11 29 32 12 25 30 13 30 36 14 36 41 V1 32 44 V2 40 44