The Technical Debt Management Cycle
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The Technical Debt Management Cycle

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The Technical Debt Management Cycle: Evaluating the Costs and Risks of IT Assets by Dr. Bill Curtis, Director, Consortium for IT Software Quality.

The Technical Debt Management Cycle: Evaluating the Costs and Risks of IT Assets by Dr. Bill Curtis, Director, Consortium for IT Software Quality.

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The Technical Debt Management Cycle Presentation Transcript

  • 1. The Technical Debt Management Cycle:Evaluating the Costs andRisks of IT AssetsDr. Bill CurtisDirector, Consortium for IT Software Quality
  • 2. Technical Debt Damages Business Value 2
  • 3. The Technical Debt MetaphorTechnical Debt  the future cost of defects remaining in code at release, a component of the cost of ownership Business Risk Opportunity cost—benefits that could have been achieved had resources been put on new Opportunity cost capability rather than retiring technical debt Liability from debt Liability—business costs related to outages, breaches, corrupted data, etc. Technical Debt Interest—continuing IT costs attributable to the violations causing technical debt, i.e, higher Interest on the debt maintenance costs, greater resource usage, etc. Principal borrowed Principalcost of fixing problems remaining in the code after release that must be remediatedStructural quality problems in production code 3
  • 4. How to Use Technical Debt Calculating Cost Of Ownership Assessing Business Risk Estimate ofTechnical Debt Explaining IT Managing Cost of Quality Portfolio Quality 4
  • 5. CAST’s Application Intelligence Platform Language Application Detected Quality Parsers Analysis Violations MeasurementsOracle PL/SQL Expensive operation in loopSybase T-SQL Static vs. pooled connectionsSQL Server T-SQL Complex query on big table PerformanceIBM SQL/PSMC, C++, C# Large indices on big tablePro CCobol Empty CATCH block Evaluation of Uncontrolled data accessCICSVisual Basic 1200+ coding & Poor memory management RobustnessVB.Net architectural rules Opened resource not closedASP.NetJava, J2EE SQL injectionJSP Application Cross-site scriptingXML Buffer overflow SecurityHTML meta-dataJavascript Uncontrolled format stringVBScriptPHP Unstructured code Misuse of inheritancePowerBuilderOracle Forms Lack of comments TransferabilityPeopleSoft Violated naming conventionSAP ABAP,Netweaver Highly coupled componentTibco Duplicated codeBusiness Objects Index modified in loop ChangeabilityUniversal Analyzerfor other languages High cyclomatic complexity 5
  • 6. Technical Debt Management Cycle Application Build/Release/IT Executives Managers Developers QA/AI Center Step 1 Step 2 Step 3 Set policy and Set thresholds Measurequality priorities for app quality Technical Debt Step 4 Plan reduction goals & actions Step 7 Step 6 Step 5 Report to the Remediate Track results business violations 6
  • 7. Step 1  Set Policy and Quality Priorities Quality Corporate purpose Training Policy Expected behavior Reporting Audit Reliability Performance Security Quality Customer-facing MaintainabilityPriorities Internal business Reliability Performance Security Maintainability 7
  • 8. Step 2  Set Thresholds for App Quality Reliability 3.8 Performance 3.9 Product information Security 2.5 Maintainability 3.0 Retail Reliability Performance 3.5 3.5 Online purchaseWebsite Security Maintainability 3.9 2.5 Reliability 3.5 Performance 3.0 Delivery scheduling Security 3.9 Maintainability 2.5 8
  • 9. Step 3  Measure Technical Debt
  • 10. Step 4  Plan Quality Goals & Actions 3.9 Quality Score Target 3.7 by Release 3.5 3.3 ReliabilityScore 3.1 Performance 2.9 Security 2.7 Maintainability 2.5 10
  • 11. Step 5  Remediate Violations 11
  • 12. Step 6  Track Results App Management 3.6 3.5 AppDev PlannedPerformance 3.4 Exec Efficiency 3.3 Actual 3.2 3.1 3 2.9 Portfolio 2.8 QA Data 2.7 Repository 12
  • 13. Step 7  Report to the Business Quality Operational Output Category problems Measure Outages, slow Resilience Availability recovery Degraded Efficiency Work efficiency responseTechnical Security Breaches, Theft Data protection debt Lengthy Transferability IT productivity comprehension Changeability Excessive effort Delivery speed 13
  • 14. Reducing Technical Debt Is Imperative 14