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1、Metrics and BenchmarkingPresented toWayne Kelly Principal Consultant Quality Assurance PracticeApril 27, 2004Contents Introduction to Metrics What is Metrics? Why Metrics? Project Metrics Program Objectives Metrics - Customer Need Measures and Metrics Improvement Cycle Measures Data Elements Tools f
2、or Measurement Metrics Calculation Metrics Roadmap Metrics Analysis - ExamplesIt is not sufficient to produce software defect metrics - like how many raised, how many outstanding, fixed by severity and urgency.We must prove that the activities of the test team are a cost effective and efficient use
3、of staff.Test Metrics Without Tears - David VaughnQuoteof 37Introduction to Metricsof 37What Is Metrics? Metrics - Derived from the word “ metre” - Quantitative indicator of performance of a s/w process or product. Metrics is a cannot-do-without project management tool Visibility into project execut
4、ion Analysis of process strengths and weaknesses you cannot manage or improve what you cannot measure“You cant control what you cant measure” - Tom DeMarcoof 37 Establish a measurement and continous improvement culture across the company. Improved quality of software accepted into production Help ma
5、nagement and employees make well-informed and decisions Alert management about risks to project goals, schedules and software quality Provides an objective assessment of the state of the software Why Metrics?of 37Why Metrics? Continued Metrics provide inputs for future estimations and planning The a
6、ctual performance of the past in quantitative terms becomes a starting point for future estimates Helps in setting goals and targets Better resource planning Metrics identify the areas for improvements For example, metrics can identify the phase which introduces the maximum number of errors Metrics
7、can be used to eliminate problem areas and root causesof 37Senior ManagementProject ManagementProject TeamsBenchmarking Setting improvement goals Performance across groupsHow large is project, Reduce defects Better estimates at task levelConsistency, predictability Better estimation, project control
8、Effort,defect, schedule, sizeCost of Quality, Effort variability tends to be very high initially expect noise and change Assist the project teams in understanding, analyzing and improving the processes through metric reporting Communicate, Communicate, Communicateof 37Obtain Executive SponsorDefine
9、the business and IT objectives for the measurement and improvement program (must be data driven)Conduct JAD session to identify possible measuresSelect measures that align with program objectives and improve IT performance Identify the information requirement, author, data source and toolsIdentify t
10、he core set or phased implementation plan for measures and validate with author, contributor and user that they align with project, department and organizational goalsImplementing A Metrics Programof 37Develop the metric collection and reporting solution including automation, collection, graphing an
11、d reporting processesTest, fine tune, verify and pilot all reports and measuresPackage multiple measures into a metrics releaseIdentify and train a core team of authors, contributors and users in the interpretation and use of all measures to improve business resultsProduction rollout beginsMonitor,
12、improve, retire and implement new measures as the organization matures in process and measurement capabilitiesCapture, communicate and inform all of Program results Integrate into a Business performance ProgramImplementing A Metrics Programof 37 Alignment with the IT Governance and/or PMO Program Al
13、ignment with certification objectives (CMM/CMMI/Iso, etc) Definition of measurement roles and responsibilities Integration into the team, department and organizational processes Consistency in the coding and collection of metrics Production-izing the collection and reporting process Overall report d
14、esign and interpretation TQM leadership and facilitation Alignment with the organizational scorecard Relevant indusrty figures for benchmarking objectivesMetrics Program Dependenciesof 37The Business Performance Programof 371Initial2Repeatable3 Defined4 Managed5 OptimizingData definition and collect
15、ion is standardized across the Organization Data is used to understand the project QuantitativelyEstablish PCB Focus on reducingvariabilityData is collected and used in all defined processesData is systematically shared across projectsStandardize metrics collectionImprove metrics reliabilityOrganiza
16、tion level Process DatabaseIndividual projects plan and manage data Start collection of measures Project level metricsData is used to evaluate and select process improvementsImprove mean capabilityMetrics Roadmap in Terms of CMM LevelsPredictability Goes Upof 37Level 2 - What you can expectDeployment Metrics at Project level for Metrics at Project level for monitoring and co
