cs427-04 - CS427 4-1 Starting a project ❚ To decide...

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Unformatted text preview: CS427 4-1 Starting a project ❚ To decide whether to start a project ❙ Calculate cost ❙ Calculate benefit ❙ Do it if benefit > cost ❚ Time and effort ❚ Opportunity cost ❚ Future costs (maintenance, reduced development) CS427 4-2 Why build software? Part of a bigger system ❙ systems engineering Part of a business ❙ business process engineering Develop a product ❙ product engineering CS427 4-3 How much to automate? ❚ Air traffic control ❚ Inventory at store ❚ Drug interaction Nothing Everything CS427 4-4 Why build software? ❚ Satisfy a need of ours ❚ Sell it (satisfy someone else’s need) ❚ Make our product better ❚ Learn something ❚ Have fun CS427 4-5 Costs and benefits ❚ Do benefits outweigh costs? ❚ Are their cheaper ways of getting similar benefits? ❚ Costs ❙ time of people ❙ other resources (computers, office space) CS427 4-6 Inception Phase ❚ Two purposes ❙ decide whether to proceed ❘ process should help you decide ❙ convince others to proceed ❘ documents should help others decide CS427 4-7 Inception documents (1) ❚ Vision document...
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This note was uploaded on 06/14/2009 for the course CS 427 taught by Professor Jones during the Fall '07 term at University of Illinois at Urbana–Champaign.

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cs427-04 - CS427 4-1 Starting a project ❚ To decide...

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