1 / 9

Software Quality: An Overview From the Perspective of Total Quality Management

Software Quality: An Overview From the Perspective of Total Quality Management. By Kan, Basili and Shapiro. General Quality necessary condition but not sufficient for today’s world market multidimensional concept involving:

mira-burke
Download Presentation

Software Quality: An Overview From the Perspective of Total Quality Management

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Software Quality: An Overview From the Perspective of Total Quality Management By Kan, Basili and Shapiro

  2. General Quality necessary condition but not sufficient for today’s world market multidimensional concept involving: entity of interest, view of that entity, quality attributes of that entity Multiple definitions a) conformance to requirements (Crosby) and b) fitness for use (Juran) this is non-trivial to do

  3. Software Quality (cont.) 2. Product Quality • two levels : • small q - at product level • Defect rate (e.g. use “bugs/kloc” metric) • Reliability (e.g. use “meantime-to-failure” metric) • Big Q - product level PLUScustomer satisfaction level • quality loop concept: • customer wants • requirements • product design and implementation according to requirements • distribute and service the product • customer satisfaction

  4. Software Quality (cont.) 3. Process Quality: • Ensuring that each intermediate product resulting from the steps of development process is of good quality and satisfies the internal customers who have to perform the next step. • Ensuring that the methodology, tools, and technologies employed for the process are under control and are improving. • ---- Need metrics for this ?---

  5. Total Quality Management (TQM) • Astyle of management that creates an organizational culture for improvement of • product • process • service to achieve success throughcustomer satisfaction • Key elements are: • Customer focus • Process • Human Culture • Measurements • Several Organizational frameworks have been proposed to improve quality • Plan-Do-Check-Act (improving/optimizing a process) • Quality Improvement Paradigm/Experience Factory (building cont. improving org.) • SEI Capability Maturity Model (staged process improvement) • Lean Enterprise Management (“valued added” process and development)

  6. 1. Customer Focus • Understanding the customers’ wants and needs is a key element for software TQM • Early in the development phase - verify requirements andearly feedback: • rapid throwaway prototyping • iterative enhancement • evolutionary development • Late in the development phase – controlled feedback • customer beta test • customer “burn-in” for early customers

  7. 2. Process, Technology, and Development • Defect Prevention Process • causal analysis • action team • (action kick off meetings) • action tracking • Reviews and Inspections • Formal Methods • Improvements in Design Paradigms (e.g. OO) • Programming Languages • Development Platforms, Libraries, Change Control and Middleware (Screen -Logic –DataBase; M-V-C) • Software Reuse

  8. 3. Human Culture • Organizational Participation (total) • Management commitment and leadership • Professional buy-in and empowerment • customer interaction (my addition for emphasis) • Integrated Operational Approach • project (schedule/resource/function perspective) • process • quality • Communication is a “huge” factor for human culture Many software projects are “group” activities -- social, psychological, organizational skills are relatively important

  9. 4. Data, Measurement, and Model • Collecting data and performing measurements are absolutely necessary • well defined metrics (a necessary pre-req.) • Goal/Question/Metric (GQM) • “models” are needed • reliability models • quality models (may be used for both development and service) • complexity models • service models (my addition) • must have means to collect and record • collected information needs to be valid & reliable,

More Related