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Chapter 3 Appendix Object-Oriented Analysis and Design: Project Management Modern Systems Analysis and Design Seventh Edition Jeffrey A. Hoffer Joey F. George Joseph S. Valacich
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Systems Analysis & Design I. Foundations 1. SD Environment 2. Origins of Software 3. Manage IS Project II. Planning 4. Identify & Select SD Projects 5. Initiate & Plan SD Projects III. Analysis 6. Determine Systems Req’s 7. Structure Systems Process Req’s 8. Structure Systems Data Req’s IV. Design 9. Design DB 10. Design Forms & Reports 11. Design Interfaces & Dialogues 12. Design Dist & Internet Systems V. Implementation & Maintenance 13. System Implementation 14. Maintaining IS
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Learning Objectives Describe the unique characteristics of an OOSAD project. Copyright © 2014 Pearson Education, Inc. Publishing as Prentice Hall 3
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Unique Characteristics of an OOSAD Project OOSAD projects use a more iterative design approach, such as prototyping or object-oriented analysis and design. During the OOSAD process, the system evolves incrementally over the life of the project. – A portion of the final system is constructed during each iteration phase. Copyright © 2014 Pearson Education, Inc. Publishing as Prentice Hall 4
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5 FIGURE 3-32 During the OOSAD process, the system evolves incrementally over the life of the project.
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Unique Characteristics of an OOSAD Project Define the system as a set of components. – Object-oriented development projects are developed using ongoing management and evolving system functionality. Complete hard problems first. – The focus and ordering of system components change over the life of the project. Copyright © 2014 Pearson Education, Inc. Publishing as Prentice Hall 6
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Unique Characteristics of an OOSAD Project Use iterations to manage the project. – The workflow of an iteration Don’t plan too much up front. – Planning estimation improves over time. How many and how long are iterations? – An OOSAD project typically has 6 to 9 iterations. Copyright © 2014 Pearson Education, Inc. Publishing as Prentice Hall 7
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Unique Characteristics of an OOSAD Project Project activity focus changes over the life of a project. – As the project evolves, system functionality evolves. Copyright © 2014 Pearson Education, Inc. Publishing as Prentice Hall 8
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9 FIGURE 3-34 The focus and ordering of system components change over the life of the project.
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Copyright © 2014 Pearson Education, Inc. Publishing as Prentice Hall 10 FIGURE 3-35 The workflow of an iteration (Source: Based on Royce, 1998; George et al., 2007.)
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Copyright © 2014 Pearson Education, Inc. Publishing as Prentice Hall 11 FIGURE 3-36 Planning estimation improves over time. (Source: Based on Royce, 1998; George et al., 2007.)
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Copyright © 2014 Pearson Education, Inc. Publishing as Prentice Hall 12 Figure 3-37 An OOSAD project typically has six to nine iterations.
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Copyright © 2014 Pearson Education, Inc. Publishing as Prentice Hall 13 Figure 3-38 As the project evolves, system functionality evolves. (Source: Based on Royce, 1998; George et al., 2007.)
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Copyright © 2014 Pearson Education, Inc. Publishing as Prentice Hall 14 FIGURE 3-39 The level and focus of activity across the systems development process change from the start to the end of the project.
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Summary In this appendix you learned how to: Describe the unique characteristics of an OOSAD project. Copyright © 2014 Pearson Education, Inc. Publishing as Prentice Hall 15
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Copyright © 2014 Pearson Education, Inc. Copyright © 2014 Pearson Education, Inc. Publishing as Prentice Hall
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