Software Quality Assurance_110210

Software Quality Assurance_110210 - ClickJeffrey Master...

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Click to edit Master subtitle style 8/29/11 Engineering Software Quality Dr. Jeffrey S. Appel
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8/29/11 The Course Textbook Software Quality Assurance: Principles and Practice by Dr. Nina S. Godbole ISBN: 1-84265-176-5
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Click to edit Master subtitle style 8/29/11 Software Quality in Business Context Chapter 1
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8/29/11 Software Quality in Business The Meaning of Quality : Defining Quality Review of Guru Definitions Working Definition Must be measurable Should be predictable Table 1 Mapping the Guru definitions to the working
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8/29/11 Software Quality in Business The Quality Challenge Measures of Quality must be Specific to the project Assess throughout the entire development process Quality must be Planned and engineered in from the beginning Monitored throughout the life-cycle
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8/29/11 Software Quality in Business Why is Quality Important? Critical for survival and success Customers demand it Customer Relationship Management (CRM) Quality Is a competitive issue Is a must for survival Gives you global reach Is cost effective – Figure 1
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8/29/11 Software Quality in Business Quality Control vs. Quality Assurance Quality Control (QC) – Corrective & Reactive Quality Assurance (QA) – Preventive & Proactive Review Figure 3
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8/29/11 Software Quality in Business Quality Assurance at each Phase of SDLC Quality during Analysis Measurement of Process Attributes Compare predicted with actual Verification and Validation Verification – Are we building the Product Right? Validation – Are we building the Right Product? Management
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8/29/11 Software Quality in Business Quality Assurance at each Phase of SDLC Quality during Analysis – Requirements Three Primary Characteristics Precise – no misinterpretations What, not How – no implementation details Conceptual Integrity l Control Number of Features l Too Many Facility Peculiarities
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8/29/11 Software Quality in Business Quality Assurance at each Phase of SDLC Quality during Design Product Metrics Size Metrics l LOC, Function Points Complexity Metrics l Cyclomatic Complexity (McCabe) l Cohesion and Coupling l Cohesion
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8/29/11 Software Quality in Business Quality Assurance at each Phase of SDLC Quality during Design Process Metrics (SEI Literature) Development Time, Methodology, Programmer Experience, etc. Use a Checklist (Page 12 – 15)
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8/29/11 Software Quality in Business Quality Assurance at each Phase of SDLC Quality during Specification Requirements Specification (SRS) Measure l 5 Defects Metric l 6 Defects/KLOC
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8/29/11 Software Quality in Business Quality Assurance at each Phase of SDLC Quality during Specification Requirements Specification (SRS) Templates Review – IEEE, DID, NU, company specific Attributes for a specification l Correctness l As judged by the stakeholders – Concept Document l Consistency, Completeness, Unambiguous
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Software Quality Assurance_110210 - ClickJeffrey Master...

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