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Quality Assurance in Agile Distributed Software Teams PDF

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Quality Assurance in Agile Distributed Software Teams Goal/Question/Metric Application in Agile Globally Dis- tributed Software Development Teams G.H. Kuijer e c n e ci S r e t u p m o C y t ul c a F Q A A UALITY SSURANCE IN GILE D S T ISTRIBUTED OFTWARE EAMS GOAL/QUESTION/METRIC APPLICATION IN AGILE GLOBALLY DISTRIBUTED SOFTWARE DEVELOPMENT TEAMS by G.H.Kuijer inpartialfulfillmentoftherequirementsforthedegreeof MasterofScience inComputerScience specialisationInformationArchitecture attheDelftUniversityofTechnology, TobedefendedonJune14,2016at1.00PM. Studentnumber: 4094107 Projectduration: July1,2015–June14,2016 Supervisor: Prof.dr.ir.R.vanSolingen Thesiscommittee: Prof.dr.ir.G.J.P.M.Houben(TUDelft) Prof.dr.ir.R.vanSolingen(TUDelft) T.Hurkmans(ExactSoftware) P REFACE Thisreportiswrittenaspartofthegraduationofmasterofscienceincomputerscience,informationarchi- tecture,attheDelftuniversityoftechnology,theNetherlands. IstartedthisresearchwhenanopportunitypresenteditselfforacasestudyinMauritius. Itwasnotthe tripabroadwhatinterestedmebutthecasetoliftateamtoahigherlevelofsoftwarequality. Duringmy researchIgotmoreinterestedinsoftwarequalityassurance.EspeciallybecauseInoticedthatonmanyofthe developer’sprioritylists,ithasalowpriority. Softwarequalityassuranceisoftenobservedasanobligation insteadofahandytool.MytruemotivationforthisresearchwastoseeifIcouldchangethis. Inthisresearchthechallengewastodevelopanewapproachforqualityassurancewithinagiledistributed developmentenvironments. Theresearchwasstartedasfollow-upofseveralinterviewsperformedwithex- pertsintheareaofsoftwaredevelopmentinwhichtheopportunitiesinthefieldwereobserved. Theresearchpresentedinthisreportcanbeofvalueforallsoftwaredevelopmentengineers,withorwith- outexpertiseinqualityengineering. Theresearchmightparticularlyberelevantifsearchingforstructured approachesforimprovingsoftwareprocessesorproducts. Nexttothesespecificgroups,anyonewhoisin- terestedinsoftwarequality(assurance),agile(distributed)approachesorthechallengesinthese,canobtain relevantandinterestinginformationfromthisreport. FortheguidanceIexperiencedduringmythesisIwouldliketothankRinivanSolingen,mymentorat theUniversityandToineHurkmans, whoactedasmentoratExactSoftware. Iwouldfurtherliketothank ExactSoftwarefortheopportunityofconductingacasestudyandinspecialtheTitan,ResearchandSystem teamfortheircooperation. FurtherthanksgoestoSanderKrugerandGlobalEdgeSoftwarewhoofferedthe opportunityforperformingtheorientatingcasestudy. G.H.Kuijer Delft,May2016 iii C ONTENTS 1 Introduction 1 2 TheoreticalBackground 3 2.1 SearchStrategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1.1 KeyTermsandSynonyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1.2 StudySelectionCriteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1.3 PerformedSearch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2 Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2.1 Whatarecurrentapproachestowardssoftwarequalityassuranceproveninpractice? . . . 4 2.2.2 Whichchallengesandproblemsarepresentinsoftwarequalityassuranceincollocated andgloballydistributedagilesoftwaredevelopment? . . . . . . . . . . . . . . . . . . . 5 2.3 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 CaseStudyProtocol 9 3.1 Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.2 Questions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.3 Propositions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.4 Unitsofanalysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.5 DataCollection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.6 DataAnalysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.7 Context . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.8 Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.9 Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4 TitanTeam 13 4.1 Iteration1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.1.1 QuestionsandMetricsDetermination. . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.1.2 MetricandVisualizationImplementation . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.1.3 Results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.1.4 TeamFeedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 4.1.5 Improvements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 4.1.6 ObservationsoftheIteration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 5 ResearchTeam 29 5.1 Iteration1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 5.1.1 QuestionsandMetricsDetermination. . . . . . . . . . . . . . . . . . . . . . . . . . . 29 5.1.2 MetricandVisualizationImplementation . . . . . . . . . . . . . . . . . . . . . . . . . 29 5.1.3 Results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 5.1.4 TeamFeedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 5.1.5 Improvements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 5.1.6 ObservationsoftheIteration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 5.2 Iteration2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 5.2.1 QuestionsandMetricsDetermination. . . . . . . . . . . . . . . . . . . . . . . . . . . 41 5.2.2 Metricandvisualizationimplementation . . . . . . . . . . . . . . . . . . . . . . . . . 41 5.2.3 Results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 5.2.4 TeamFeedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 5.2.5 Improvements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 5.2.6 ObservationsoftheIteration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 v vi CONTENTS 5.3 Iteration3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 5.3.1 Results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 5.3.2 ResultsRetrospective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 5.3.3 Improvements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 5.3.4 ObservationsoftheIteration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 6 SystemTeam 47 6.1 Iteration1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 6.1.1 QuestionsandMetricsDetermination. . . . . . . . . . . . . . . . . . . . . . . . . . . 47 6.1.2 MetricandVisualizationImplementation . . . . . . . . . . . . . . . . . . . . . . . . . 47 6.1.3 Results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 6.1.4 TeamFeedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 6.1.5 Improvements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 6.1.6 ObservationsoftheIteration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 6.2 Iteration2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 6.2.1 QuestionsandMetricsDetermination. . . . . . . . . . . . . . . . . . . . . . . . . . . 51 6.2.2 Results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 6.2.3 ResultsRetrospective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 6.2.4 ObservationsoftheIteration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 7 AgileGQM:TheEmergedApproach 55 7.1 QualityGoals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 7.2 Refinement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 7.3 MetricsImplementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 7.4 Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 7.5 Retrospective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 8 Discussion 59 8.1 ExactCaseStudyResults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 8.2 Whatarethechallengesinqualityassuranceinagloballydistributedagilehighorganisational maturitylevelcompany? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 8.3 Howcanthechallengesofsoftwarequalityassurancebesolvedinagloballydistributedagile highorganisationalmaturitylevelcompany? . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 8.4 BroaderApplicationofAgileGQM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 9 Conclusion 63 9.1 Whatarecurrentapproachestowardssoftwarequalityassuranceproveninpractice? . . . . . . 63 9.2 Which challenges and problems are present in software quality assurance in collocated and globallydistributedagilesoftwaredevelopment? . . . . . . . . . . . . . . . . . . . . . . . . . 64 9.3 Whatarethechallengesinqualityassuranceinagloballydistributedagilehighorganisational maturitylevelcompany? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 9.4 Howcanthechallengesofsoftwarequalityassurancebesolvedinagloballydistributedagile highorganisationalmaturitylevelcompany? . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 9.5 Howcanthechallengesandproblems,thatariseinsoftwarequalityassuranceatsoftwarede- velopmentthatisperformedinanagilegloballydistributedsetting,besolved? . . . . . . . . . 66 9.6 FutureWork. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 10LessonsLearned 69 10.1 Measuringinpractice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 10.2 WorkingatExact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 10.3 ACaseStudyAbroad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 A ExploratoryCaseStudy 71 A.1 ProjectUnify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 A.1.1 InitialProjectProcess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 A.1.2 AnalysisofInitialProcess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 A.1.3 UnifySoftwareQuality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 A.1.4 UnifySoftwareQualityAnalysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 A.1.5 PlannedChanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 CONTENTS vii A.1.6 Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 A.1.7 Experiences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 A.1.8 Conclusion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 B PerformedSearches 77 C Goal1:MetricSummary 79 D FullAnalysis 81 D.1 TeamTitanIteration1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 D.1.1 Whatinfluencestheaccuracyofestimationofstoryduration?. . . . . . . . . . . . . . . 81 D.1.2 Whatfactorsinfluencethevariationindurationofastorywiththesameamountofstory points?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 D.2 ResearchTeamIteration1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 D.2.1 Whatinfluencestheaccuracyofestimationofstoryduration?. . . . . . . . . . . . . . . 88 D.2.2 Whatfactorsinfluencethevariationindurationofastorywiththesameamountofstory points?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Bibliography 95

Description:
Goal/Question/Metric Application in Agile Globally Dis- perts in the area of software development in which the opportunities in the feedback but does not guide the developer on when and how to take action. Javier Soriano, Xabier Larrucea, Andrés Leonardo Martínez, and Jesus M Gonzalez-.
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Most books are stored in the elastic cloud where traffic is expensive. For this reason, we have a limit on daily download.