exhibit 5.13 Work Breakdown Structure and Activities for the Cell Phone Design Project ACTIVITY IDENTIFICATION DEPENDENCY DURATION (WEEKS) P1 P2 P3 P4 P1 P2 P3 2 4 5 5 S1 S2 P4 P4 5 6 MAJOR SUBPROJECTS/ACTIVITIES Product specifications (P) Market research Overall product specifications Hardware Software Supplier specifications (S) Hardware Software Product design (D) Battery Display Camera Outer cover Product integration (1) Hardware User interface Software coding Prototype testing Subcontracting M Suppliers selection Contract negotiation D1 D2 D3 D4 S1 SI S1 D1, D2, D3 1 2 1 4 04 11 12 13 14 D2 12 11.13 3 4 4 4 V1 V2 S1, S2 14, V1 10 completing the project. Find the activities that are on the critical path for completing the project in the short est time 3. Identity slack in the activities not on the project criti cal path 4. You have been asked to study the impact of making two changes to how the project is organized. The first change involves using dedicated team that would work strictly in parallel on the activities project. For example, in subproject fications) the team would work on all in parallel. In other words, cedence relationships within within a subproject would be w time and each would take the as originally specified. With subprojects would be done sequently the first, then S. D. 1, and finally V. What we the expected impact on how long it would take to com plete the project if this change were made 5. The second change to consider would be to select the suppliers during subproject P and have them work directly with the dedicated teams as described in step 4 This would involve adding an additional activity to subproject P called supplier selection and contract negotiation (PS) with a duration of 12 weeks. This ner activity would be done in parallel with P1, P2, sul sul projects S and V would be eliminated the project. What would be the expected impact it would take to complete the project in ondial change were made the impact of making these changes using ther than just the time to complete the proj Coolink it would be best to try to make these changes in bow the tim runs this and future cell phone de projects You work for a company that makes cell phones and have been made project manager for the design of a new cell phone. Your supervisors have already scoped the project, 50 you have a list showing the work breakdown structure, and this includes major project activities. You must plan the proj- ect schedule and calculate project duration. Your boss wants the schedule on his desk tomorrow morning! You have been given the information in Exhibit 5.13. It includes all the activities required in the project and the duration of each activity. Also, dependencies between the activities have been identified. Remember that the preceding activity must be fully completed before work on the follow- ing activity can be started. Your project is divided into five major subprojects. Subproject P involves developing specifications for the new cell phone. Here, decisions related to such things as battery life, size of the phone, and features need to be made. These details are based on how a customer uses the cell phone. These user specifications are redefined in terms that have meaning to the subcontractors that will actually make the new cell phone in subproject S supplier speci- fications. These involve engineering details for how the product will perform The individual components that make up the product are the focus of subproject D. Subproject I brings all the compo- nents together, and a working prototype is built and tested. Finally, in subproject V. suppliers are selected and con- tracts are negotiated 1. Draw a project network that includes all the activities 2. Calculate the start and finish times for each activity and determine the minimum number of weeks for exhibit 5.13 Work Breakdown Structure and Activities for the Cell Phones en Project MAIOR SUAPROCTS/ACTIVITIES ACTIVITY IDENTIFICATION DEFENDEC DURATION (WEEKS) Product specifications (P) Market research P1 2 Overall product specifications P2 P1 4 Hardware P3 P2 5 Software P4 P3 5 Supplier specifications (S) Hardware S1 P4 5 Software S2 P4 6 Product design (D) Battery D1 SI 1 Display D2 SI 2 Camera D3 S1 1 Outer cover D4 D1, D2, D3 4 Product Integration Hardware 11 D4 3 User interface 12 D2 4 Software coding 13 12 4 Prototype testing 14 11.13 4 Subcontracting (V Suppliers selection V1 Contract negotiation S1, S2 10 V2 14. VI 2 -N completing the project. Find the activities that are on the critical path for completing the project in the short- est time. 3. Identify slack in the activities not on the project criti- cal path. 4. You have been asked to study the impact of making two changes to how the project is organized. The first change involves using dedicated teams that would work strictly in parallel on the activities in each sub- project. For example, in subproject P (product speci- fications) the team would work on P1, P2, P3, and P4 all in parallel. In other words, there would be no pre- cedence relationships within a subproject- all tasks within a subproject would be worked on at the same time and each would take the same amount of time as originally specified. With this new design, all the subprojects would be done sequentially with P dose first, then S, D, I, and finally V. What would be on expected impact on how long it would take to com- plete the project if this change were made? 5. The second change to consider would be to select the suppliers during subproject P and have them work directly with the dedicated teams as described in step 4. This would involve adding an additional activity to subproject P called supplier selection and contract negotiation (P5) with a duration of 12 weeks. This new activity would be done in parallel with P1, P2, P3, and P4. Subprojects S and V would be eliminated from the project. What would be the expected impact on how long it would take to complete the project if this additional change were made? 6. Evaluate the impact of making these changes using criteria other than just the time to complete the proj- ect. Do you think it would be best to try to make these changes in how the firm runs this and future cell phone desige projects