Software Development Cross Solution - Index of - Free

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At the end of the last chapter, things were in a pretty bad way. You’d added Mercury Meals’ code into Orion’s Orbits and were all set to demo things to the CFO when you hit a problem. Well, actually three problems—and that adds up to one big mess... > java OrionsOrbits Adding order... Title: Est: 384 Chapter 11 Your system freezes when you try and run it...it just stops doing anything. Orion’s Orbits is NOT working. Your customer added three new user stories that relied on some new code from Mercury Meals. Everything looked good, the board was balanced and you completed the integration work when, BOOM!, you ran your code and absolutely nothing happened. The application just froze... 12 Priority: Order Regular Meal 10 Title: Est: Priority: Title: Est: Priority: Order vegetarian or vegan meal 20 View all the orders for a flight 4 10 6 // Follows the Singleton design pattern public class MercuryMeals { public MercuryMeals meallythang; private Order cO; private String qk = “select * from order-table where keywords like %1;”; public MercuryMeals() { } public MercuryMeals getInstance() { } this.meallythang = new MercuryMeals(); return this.instance; // TODO Really should document this at some point... TBD public Order createOrder { return new Order();} public MealOption getMealOption(String option) throws MercuryMealsConnectionException { } if (MM.establish().isAnyOptionsForKey(option)) { return MM.establish.getMealOption(option).[0] }; return null; // Mercury Meals class continued... { public boolean submitOrder(Order cO) try { MM mm = MM.establish(); mm.su(this.cO); catch (Exception e) { // write out an error message } return false; } public Order[] getOrdersThatMatchKeyword(String qk) }} Order o = new Order[]; try { o = MM.establish().find(qk, qk); } catch (Exception e) { } return null; return o; throws MercuryMealsConnectionException { You have a LOT of ugly new code. When you dug into the Mercury Meals code, you found a ton of problems. What’s causing the problems in Orion’s Orbits, and where should you start looking? You have THREE user stories that rely on your code working. All of this would be bad enough, but there are three user stories that rely on the Mercury Meals code working, not just one. To make matters even worse, the CEO of Orion’s Orbits has talked you up to the CFO, and both are looking forward to seeing everything working, and soon... Download at WoweBook.Com
What would you do next? Your software isn’t working, you’ve got code to fix, and the CEO of Orion’s Orbits is breathing down your neck, because the CFO is soon to be breathing down his. But how does any of this fit into your process? Wait! Think through what you would do next and fill in the blanks above before turning the page... You, too, impatient developer... come up with a good answer, and then go on to the next section. Download at WoweBook.Com bugs you are here 4 385
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Download at WoweBook.Com
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Praise for Head First Object-Orient
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Other related books from O’Reilly
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Head First Software Development by
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the authors Author(s) of Head First
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table of contents x 1 If The Goal g
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table of contents xii 3 project pla
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table of contents xiv 5 good-enough
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table of contents xvi 6 / It buildi
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table of contents xviii 8 Sometimes
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table of contents xx 10 Think the n
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table of contents xxii 12 You’ve
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table of contents xxiv ii appendix
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how to use this book Who is this bo
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how to use this book xxviii intro W
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how to use this book Here’s what
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how to use this book Read Me This i
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the review team The technical revie
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safari books online Safari® Books
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Tom’s Trails Tom’s Trails is go
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the Big Bang approach The Big Bang
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the Big Bang ends with a big mess B
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great software development is... 8
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delivering with iteration Getting t
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an iteration delivers working softw
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an iteration is a complete developm
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uild a plan out of iterations and f
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deciding on a iteration tempo for y
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change happens The customer WILL ch
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handle change with iteration Iterat
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use the right process for you The r
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CHAPTER 1 your software development
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exercise solutions 28 Chapter 1 1 P
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orion’s orbits Orion’s Orbits i
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equirements start with customer ide
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capturing what’s in your customer
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getting more with role playing and
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customer-oriented requirements Our
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keep your customer in the loop Q: W
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user stories capture what your soft
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estimates come with assumptions 44
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assumptions kill confidence in your
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highlighting assumptions and obtain
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assumptions are killed or become ri
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use your customer effectively 52 Ch
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keep estimates small A BIG user sto
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aim for estimates you and your team
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your estimates are your promise Q:
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develop your estimates cyclically T
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sum your estimates to find out your
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when your project is too long 64 Ch
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deliver what you can, when it’s n
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priorities come from your customer
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Title: Description: Est: Title: 15
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factoring in team performance 76 Ch
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uilding achievable milestones Work
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your customer decides priority Titl
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milestone = paid, iteration = on tr
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continuously buildable and runnable
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inging reality to your plan 86 Chap
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velocity applies your real performa
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from ideal to real estimates Progra
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confidence comes at a price When is
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iterations with velocity The maximu
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eality means being honest Title: Es
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eaking realistic but bad news Manag
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introducing the big board The Big B
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happiness is a project that can be
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performance and burn down Work left
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introducing iSwoon Introducing iSwo
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eak up user stories into tasks Task
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tasks have estimates Your task desc
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tasks on your board Add your tasks
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moving tasks to in progress Start w
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multiple tasks at the same time Wha
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keep communication flowing with dai
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doing your first task Task 1: Creat
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inging your design to life with a s
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exercise solution The date is asked
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monitoring your progress Standup me
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updating your project board 132 Cha
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updating your project board 134 Cha
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into the second week Standup meetin
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detecting problems with the design
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surprises... 140 Chapter 4 We inter
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dealing with unplanned tasks If the
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velocity doesn’t account for surp
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you know where you are We have a lo
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meet velocity Head First: Welcome,
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inging iSwoon under control iSwoon
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detecting bad design ...you needed
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design refactoring The Date class c
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srp analysis Spotting multiple resp
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single responsibility It makes sens
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don’t repeat yourself Your design
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efactoring iSwoon’s design A date
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standup meeting The post-refactorin
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unplanned work Unplanned tasks are
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good-enough delivers “Good Enough
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end of iteration board When everyth
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exercises 172 Chapter 5 Take each o
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exercise solutions Unplanned tasks
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introducing beatbox pro You’ve go
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digging into code Here’s the code
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finish the story And now the GUI wo
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merging changes And Bob does the sa
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disaster recovery What went wrong?
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version control in action Let’s s
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1 2 creating a repository First set
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merging changes Most version contro
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identifying conflicts If your softw
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esolving conflicts Make these chang
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dealing with older code More iterat
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dealing with multiple releases We h
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viewing logs Good commit messages m
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tagging revisions (Emergency) stand
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anches and tags 1 Use the mkdir com
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working with branches Fixing Versio
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anches, tags, and subversion Q: I
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avoiding unnecessary branches When
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214 Chapter 6 What version control
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CHAPTER 6 Development Techniques Us
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uilding buildable software Develope
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introducing ant Ant: a build tool f
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more exercises 224 Chapter 6 ½ Are
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a full build script The javac task
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habits of good build scripts Good b
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even more build script tricks Good
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version control your build script Y
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CHAPTER 6 1/2 Development Technique
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it never rains but it pours Things
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lack box testing There are three wa
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grey box testing Grey-box testing g
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white box testing was Below is a us
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testing functionality BeatB These s
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you create tests test for establish
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one-click testing Testing EVERYTHIN
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making the most of a framework Auto
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continuous integration For you and
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setting up continuous integration A
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tests only cover what you tell them
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tested code is completed code } 258
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putting code to the test 260 Chapte
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100% coverage All three of these te
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using a coverage report Testing all
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the cost of testing Q: How do cover
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is 100% coverage efficient? 268 Cha
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an environment for testing 270 Chap
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exercise solutions 272 Chapter 7 Te
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test before code Test FIRST, not la
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unit testing Your first test... The
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green means pass Get your tests to
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testing a user story’s functional
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implement a test in code import org
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drive your code with TDD In TDD, te
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task done when tests pass Completin
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first fail Red: write (failing) tes
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keep it simple You can just make up
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simple code is testable code Always
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switching to test code with the str
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where to place your test code Remem
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etter code through testing Testing
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tests = code and lots of it More te
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mock objects We need lots of differ
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using a mock object framework Mock
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why mock objects? Q: These mock obj
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all green, you’re done It’s not
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test, red, code, green A day in the
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esults from an iteration Your itera
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daily standup meetings Standup Meet
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urn-down analysis 322 Chapter 9 Bef
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system testing System testing MUST
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incorporating system testing System
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issues with test iterations More it
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enabling communication 330 Chapter
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This is usually called acceptance t
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Page 374 and 375: ug trackers So you found a bug....
Page 376 and 377: learn from your iteration But there
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Page 382 and 383: other things to do A GENERAL priori
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Page 386 and 387: crossword solution 13 B 1 S Iterati
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Page 390 and 391: planning the next iteration You nee
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Page 396 and 397: factoring in real velocity Q: A tea
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Page 400 and 401: it’s still software Someone else
Page 402 and 403: integration tasks on your board Tit
Page 404 and 405: integrating third-party code How yo
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Page 408 and 409: when reuse lets you down Testing yo
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Page 412 and 413: looking for problems in reused sour
Page 414 and 415: finding problems in reused source c
Page 416 and 417: your process deals with it You with
Page 418 and 419: oken code happens � � � � Q
Page 420 and 421: exercise solutions 2 R 1 R 3 E S P
Page 424 and 425: always communicate First, you’ve
Page 426 and 427: prioritize what you do 388 Chapter
Page 428 and 429: ump some things for later 390 Chapt
Page 430 and 431: apply your process Priority one: ge
Page 432 and 433: focus on functionality We could fix
Page 434 and 435: test for bugs Figure out what funct
Page 436 and 437: think about estimating Even though
Page 438 and 439: spike tests Spike test to estimate
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Page 442 and 443: factor in confidence Your team’s
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Page 446 and 447: apply other techniques Figure out w
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Page 454 and 455: crossword solution 10 F 15 H 5 P Bu
Page 456 and 457: software process defined Pinning do
Page 458 and 459: evaluate everything The big board 4
Page 460 and 461: ensure changes improve things The b
Page 462 and 463: formalize if necessary Formal attir
Page 464 and 465: other resources Some additional res
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Page 468 and 469: exercise solutions 4 S 11 P 14 A So
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uml and class diagrams #1. UML clas
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sequence diagrams #2. Sequence diag
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user stories and use cases #3. User
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system testing vs. unit testing #4.
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CHAPTER 1 development techniques CH
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development principles Deliver soft
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the index building projects (contin
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the index H Head First Java BeatBox
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the index No Dumb Questions (contin
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the index singularly focused 152 so
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the index third-party code bugs in
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