Software Engineering for Students A Programming Approach

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The transition phase Summary 343 This phase means putting the system into use. It involves installing the ATM hardware, the software and communication lines. It means arranging for the ATMs to be serviced, supplied with cash and printer paper. It means installing the server software. Rather than install a whole number of ATMs at once, it makes sense to install just one in some convenient location to act as a beta test. This first iteration, once successfully concluded, is followed by the installation of multiple ATMs. 27.7 ● Discussion The UP is not a single process model. It is a framework from which a project manager can select a process model suitable for a particular project. So the model can be applied to large and small projects, involving a few developers or many. Summary The UP is a process model that primarily aims to: ■ meet user requirements ■ accommodate risks. The process consists of four phases: 1. inception 2. elaboration 3. construction 4. transition. Each phase consists of one or more iterations. Each iteration consists of analysis, design, coding and testing. The purpose of iteration is to accommodate risks. The UP employs a number of techniques: ■ iteration ■ use cases ■ focus on providing executable code ■ establishing a working architecture early on ■ using components ■ establishing an effective team ■ incorporating quality throughout.
344 Chapter 27 ■ The unified process • Exercises 27.1 Assess the UP. 27.2 Compare and contrast the UP with the waterfall model, extreme programming and the spiral model. 27.3 Create an outline plan for developing each of the systems in Appendix A, using the UP. 27.4 Evaluate the UP using the following criteria: ■ capability to accommodate risk ■ capability to meet user requirements ■ capability to respond to changed requirements ■ visibility of the progress of the project. 27.5 Identify the main goals and the main techniques of each of the following process models: ■ waterfall ■ spiral ■ prototyping ■ incremental ■ open source ■ XP ■ UP. Further reading •The following book clearly explains the RUP. It also compares it with waterfall, agile methods and heavyweight approaches: Per Kroll and Philippe Kruchten, The Rational Unified Process Made Easy, Addison-Wesley, 2003. Another straightforward read: Philippe Kruchten, The Rational Unified Process, an Introduction, Addison-Wesley, 3rd edn, 2004.
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Software Engineering for Students D
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We work with leading authors to dev
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Pearson Education Limited Edinburgh
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vi Contents Part D ● Verification
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viii Detailed contents 3 The feasib
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x Detailed contents 9 Data flow des
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xii Detailed contents 14.7 Repetiti
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xiv Detailed contents 19.7 Unit tes
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xvi Detailed contents 26 Agile meth
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xviii Detailed contents 32.4 Softwa
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xx Preface Software Engineering and
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xxii Preface are engaged on a proje
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CHAPTER 1 This chapter: ■ reviews
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1.3 The cost of software production
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100% 10% 1970 SELF-TEST QUESTION Ha
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Analysis and design 1 /3 Coding 1 /
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SELF-TEST QUESTION 1.7 Maintenance
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1.8 Reliability 13 in the first pla
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1.8 Reliability 15 contain a comma
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Ease of maintenance Reliability Con
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Exercises 19 • Exercises These ex
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Further reading 21 Analyses of the
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■ documentation ■ maintenance
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2.2 The tasks 25 An important examp
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2.4 Methodology 27 reality. Like an
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■ error free ■ fault ■ tested
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3.2 ● Technical feasibility 3.3 C
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3.5 Case study 33 The hardware cost
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Answers to self-test questions 3.1
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4.2 The concept of a requirement 37
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4.3 The qualities of a specificatio
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4.5 The requirements specification
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4.6 The structure of a specificatio
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4.7 ● Use cases 4.7 Use cases 45
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Summary The ideal characteristics o
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Further reading 49 Further reading
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CHAPTER 5 This chapter explains: 5.
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5.3 Styles of human-computer interf
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5.5 Design principles and guideline
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5.5 Design principles and guideline
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SELF-TEST QUESTION 5.2 What problem
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5.8 Help systems 63 Our plan is to
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Further reading 65 5.5 Design a use
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CHAPTER 6 Modularity This chapter e
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6.2 Why modularity? 69 observed fau
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Figure 6.1 Two alternative software
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■ a simple program is more likely
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6.6 Information hiding 75 The class
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6.8 ● Coupling 6.8 Coupling 77 We
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6. Method calls with parameters tha
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3. Temporal cohesion 6.9 Cohesion 8
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> } public void setY(int newY) { y
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• Exercises 6.1 What is modularit
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CHAPTER 7 Structured programming Th
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7.2 Arguments against goto 89 If we
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■ if-then-else ■ while-do or re
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7.3 Arguments in favor of goto 93 l
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7.4 Selecting control structures 95
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while do if endif then else endWhil
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• Exercises 7.1 Review the argume
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count = 0 loop: count = count + 1 i
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> 8.2 Case study 103 A statement th
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start button event create defender
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8.3 ● Discussion Abstraction One
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Exercises 109 skill. On the other h
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CHAPTER 9 This chapter explains: 9.
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9.2 Identifying data flows 113 Noti
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9.3 Creation of a structure chart 1
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SELF-TEST QUESTION 9.4 Discussion 1
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Exercises 119 During the second sta
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CHAPTER 10 This chapter explains:
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In English, this reads: 10.2 A simp
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10.2 A simple example 125 Now comes
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10.4 Multiple input and output stre
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Process header Process issue 10.4 M
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10.5 Structure clashes 131 As seen
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10.5 Structure clashes 133 Let us r
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10.6 Discussion 135 ■ teachable -
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Exercises 137 2. a control block, s
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CHAPTER 11 Object-oriented design T
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Figure 11.1 The cyberspace invaders
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SELF-TEST QUESTION 11.1 Derive info
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11.5 Class-responsibility-collabora
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11.7 ● Discussion Summary 147 OOD
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11.11 Compare and contrast the prin
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CHAPTER 12 This chapter explains: 1
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12.3 Delegation 153 The concepts of
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12.5 Factory method 155 The followi
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12.8 Model, view controller (observ
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Figure 12.4 Pipe and Filter pattern
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Figure 12.6 Layers in a distributed
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Answers to self-test questions 163
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CHAPTER 13 Refactoring This chapter
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13.3 ● Move Method 13.6 Inline Cl
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class Sprite Instance variables x y
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Summary Summary 171 it is making po
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PART C PROGRAMMING LANGUAGES
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176 Chapter 14 ■ The basics and a
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178 Chapter 14 ■ The basics > > >
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180 Chapter 14 ■ The basics > Ear
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182 Chapter 14 ■ The basics > Cas
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184 Chapter 14 ■ The basics > > >
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186 Chapter 14 ■ The basics > } }
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188 Chapter 14 ■ The basics Unfor
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190 Chapter 14 ■ The basics Ada d
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192 Chapter 14 ■ The basics The w
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194 Chapter 14 ■ The basics In a
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196 Chapter 14 ■ The basics > str
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198 Chapter 14 ■ The basics Answe
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CHAPTER 15 Object-oriented programm
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202 Chapter 15 ■ Object-oriented
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222 Chapter 16 ■ Programming in t
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238 Chapter 17 ■ Software robustn
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260 Chapter 18 ■ Scripting GNU/Li
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262 Chapter 18 ■ Scripting In sum
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PART D VERIFICATION
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268 Chapter 19 ■ Testing We begin
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270 Chapter 19 ■ Testing within a
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272 Chapter 19 ■ Testing Test num
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274 Chapter 19 ■ Testing if (a >=
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276 Chapter 19 ■ Testing 3. apply
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278 Chapter 19 ■ Testing made con
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280 Chapter 19 ■ Testing 19.3 Dev
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282 Chapter 19 ■ Testing 19.2 The
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284 Chapter 20 ■ Groups The term
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286 Chapter 20 ■ Groups Of course
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288 Chapter 20 ■ Groups • Exerc
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CHAPTER 21 This chapter explains: 2
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Page 368: PART F PROJECT MANAGEMENT
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32.3 ● The world of programming l
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32.5 ● The real world of software
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32.6 Control versus skill 397 Final
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Formal methods 32.7 Future methods
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Summary 401 In the short-term futur
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Further reading 403 An extensive tr
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APPENDIX A Case studies are used th
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Figure A.1 Cyberspace invaders A.4
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APPENDIX B Glossary Within the fiel
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C.2 ● Class diagrams C.2 Class di
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util Figure C.6 A package diagram S
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References to books and websites ar
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abstraction 99, 107 acceptance test
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fork 324 formal methods 276, 388, 3
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quality 18, 362 quality assurance 1
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