Cmpe 589

1
Cmpe 589

• Spring 2008
• Lecture 1

2
Software Quality

• Definable and measurable
• Quality
• Conformance to requirements, non-conformance is a
  defect
• Fitness for use- meets customer expectations

3
Software Quality

• Quality of Design
• Grades/ Models
• Customer purchasing power
• Quality of Conformance
• Degree to which the product meets design
  specification

4
Software Quality

• Role of Customer
• Small q producer perspective, acceptable
  product defect rate and acceptable reliability.
• Big Q Product quality, process quality, and
  customer satisfaction

5
Software Quality
Problem of the 90s
Customer wants and needs
Requirements specification
Products designed and implemented with forms
on continuous improvement
Loop
Good product quality and Good support services
Good customer satisfaction
6
Software Quality

• Conformance to functionality?
• Defect Rate
• Reliability
• Measure- customer satisfaction
• Interrelationships Among Software Attributes
• Measures
• Models

7
Software QualityTotal Quality Management (TQM)
Continuous Improvement
Total Quality Management (TQM)
Customer Focus
Process Improvement
Human side quality
Metrics, Models, Measurement and Analysis
8
Software Quality

• Plan-do-check-act feedback loop and statistical
  quality control
• Quality Improvement Paradigm internal
  assessment of company goals and status
• Characterize product and its environment
• Set goals
• Choose appropriate processes
• Execute Processes
• Analyze Data
• Package Expertise for Reuse

9
Software Quality

• S.E.I Capability and Maturity Model
• Stage process improvement 1-5 stages
• Library of repeatable processes
• Defect prevention
• Technology innovation
• Process change methodology
• Lean Enterprise Model
• Concentrate on value added activities
• Eliminate non-value added activities

10
Software Quality

• Ethical Basis for Quality
• Technical Issues
• Professional Issues
• Social Issues