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《软件工程》Soft_Eng
Computer Science 3061/23/03 Bill Bond Class Communication Email your name and email address to bondw@ Class Time: 6:30 - 9:10 PM Web page is at following location: /~umreec/web-courses/cs306/index.html Mythical Man Month Written by Frederick Brooks in 1975 Describes development of OS/360 in the 1960s Concentrates on people issues / organization instead of technology Project Management How do we manage a project? People Resources Tasks What are software metrics? How are they useful? Project Management, cont How can we estimate a project? Effort Duration Cost When should we make (versus buy) software? Project Management, cont How do we manage risks? How is a schedule created? Where are we? How do we assure quality software? Measurements Direct Process – cost, effort Product – LOC, execution speed, memory size, defects Indirect Product – functionality, quality, complexity Estimates Productivity – KLOC/person-month Quality – defects/KLOC Cost - $/KLOC Documentation – pages/KLOC KLOC Easy to measure Language dependent Penalize well-designed program Estimates Productivity – FP/person-month Quality – defects/FP Cost - $/FP Documentation – pages/FP Function Point Language independent Based on subjective data No direct meaning Function Point Original purpose was to measure business information systems “Feature point” system for system/engineering software Accommodates high “algorithmic complexity” Algorithms added to table LOC/FP Average LOC to build one FP Assembly 300 Cobol 100 Fortran 100 Pascal 90 Ada 70 Object-oriented 30 Estimation Decomposition Empirical modeling Automated tools Estimation Must understand scope – requirements Must decompose to the “right” pieces If right pieces, easy to estimate Must leverage historical data Must be similar to past experience Computer Science 3061/30/03 Bill Bond Class Communication Email your name and email address to bondw@ Class Time: 6:30 - 9:10 PM Web page is at following location: /~umreec/web-courses/cs306/i
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