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Visualizing Project Management Models and frameworks for mastering complex systems 3rd phần 9

Một người quản lý dữ liệu cần kiểm soát dữ liệu hợp đồng và các đồ tạo tác cơ bản đã được phê duyệt. Các công cụ điển hình bao gồm một thư viện dự án và hệ thống quản lý tài liệu một computerbased. | System PDR Incremental Linear Development Single or Multiple Increment Deliveries Incre TRR Increment 1 PDR Incre 1 TRR Incre 1 2 Verif. Possible Delivery Increment 2 Increment 3 PDR PDR Incre 1 Verif. Possible 1 2 Delivery Code Fab Assemble Units Figure 19.17 Incremental development single or multiple delivery. System System ACcept TrR Deliver Integrate 1 2 3 Examples Multiple Delivery San Jose Light Rail Phase 1 1990 10 mi of track Phase 21993 18 mi of track Phase 3 20 X mi of track to adjacent cities Single Delivery St. GotthardAlps Tunnel Sedrum Start - 4 1996 Amsteg Start -71999 Faido Start -7 1999 Bodio Start - 9 1999 Erstfeld Start -1 2002 Commission - 2011 Figure 19.18 Incremental development incremental delivery with evolutionary iterations on increment 3. PRINCIPLES AND TACTICS FOR MASTERING COMPLEXITY 359 activities and unplanned reactive activities such as late suppliers and quality problems. As discussed in Chapter 12 the management of the critical path is usually focused on the task schedules and their dependencies as represented by the structure of the project network. But prematurely focusing on precise calculation of the critical path may be missing the forest for the trees. The purpose of this section is to highlight the interdependency between the technical development tactics and the critical path throughout the project cycle. Deployment strategies have a strong inf luence on the critical path especially the early part. A strategy might be to capture market share by deploying a system solution quickly even though it might not initially achieve its full performance goals. Another strategy might be to field a system that is easily upgradeable after introduction to provide after-market sales. The resulting development tactics selected for system entities determine the connections among tasks and the relationships that form the project network. When the predicted task schedules are applied their summation determines the length of the critical path.