Analytics Exercise 4-2 (Algo) You work for a company that makes cell phones and have been made project manager for the design of a new cell phone. YOL supervisors have already scoped the project, so you have a list showing the work breakdown structure, and this includes majo activities You must plan the project schedule and calculate project duration. Your boss wants the schedule on his desk tomorn morning! You have been given the information in Exhibit 4.13. It includes all the activities required in the project and the duration of ea activity. Also, dependencies between the activities have been identified. Remember that the preceding activity must be fully completed before work on the following activity can be started. Your project is divided into five major subprojects. Subproject \"P" involves developing specifications for the new cell phone. decisions related to such things as battery life, size ofthe phone, and features need to be made. These details are based on h customer uses the cell phone. These user specifications are redefined in terms that have meaning to the subcontractors that V\\ actually make the new cell phone in subproject \"S" supplier specifications. These involve engineering details for how the prod perform. The individual components that make up the product are the focus of subproject ".'D Subproject "I" brings all the componei together, and a working prototype is built and tested. Finally, in subproject \"V," suppliers are selected and contracts are negotiated. Exhibit 4.13: Work Breakdown Structure and Activities for the Cell Phone Design Project MAJOR SUBPROJECTS/ACTIVITIES ACTIVITY IDENTIFICATION DEPENDENCE DURATION (WEEKS) Product Specifications (P) Market research P1 6 Overall product specifications P2 P1 3 Hardware P3 P2 5 Software P4 P3 5 Supplier specifications (S) Hardware 51 P4 5 Software 52 P4 6 Product design (D) Battery D1 51 1 Display D2 51 6 Camera D3 51 1 Outer cover D4 D1, D2, D3 4 Product integration (I) Product integration ( I) Hardware I1 D4 User interface 12 D2 a O UT W Software coding 13 I2 Prototype testing 14 I1, 13 Subcontracting (V) Suppliers selection V1 S1 , $2 10 Contract negotiation V2 14, V1 6 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 P2 P3 P4 S1 S2 D1 D2 D3 D4 11 12 13 14 V1 V2b. Determine the minimum number of weeks for completing the project. Minimum number of weeks c. Find the activities that are on the critical path for completing the project in the shortest time. O P1-P2-P3-P4-S1-D3-D4-11-14-V2 O P1-P2-P3-P4-S1-D2-D4-11-14-V2 O P1-P2-P3-P4-S1-D1-D4-11-14-V2 O P1-P2-P3-P4-S1-D2-12-13-14-V2