1 / 19

SQA System Overview

SQA System Overview. Chapter 4. Formal Technical Reviews. Testing. People. Process Standards. Change Control. 2 / 19. Where we have been so far, Where we are going. Basic Concepts. SQA Plan step one: contract review step two: schedule FTRs step …. Where do software

vicki
Download Presentation

SQA System Overview

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. SQA System Overview Chapter 4

  2. Formal Technical Reviews Testing People Process Standards Change Control 2 / 19 Where we have been so far, Where we are going Basic Concepts SQA Plan step one: contract review step two: schedule FTRs step … Where do software errors come from? What is quality? How can quality be measured? schedules Plan Components

  3. 3 / 19 Reality Check… • Is an SQA plan just busy-work, or does it really pay off? • Hughes Aircraft • moved from level 2 in 1987 to level 3 in 1990 • cost = $500K • benefit = $2M annually • Raytheon • moved from level 1 in 1988 to level 3 in 1993 • productivity doubled • ROI = $7.70 per $1 invested

  4. 4 / 19 Pre-Class ReadingCMM Effectiveness Case Studies • Hughes Aircraft • Schlumberger • Texas Instruments • Tinker AFB

  5. 5 / 19 SQA Components • Pre-Project Components • Development and Maintenance Activities • Error Reduction Infrastructure • SQ Management Components • SQA System Assessment • Human Components text section 4.1

  6. 6 / 19 1. Pre-Project Components • Contract Review • Development and Quality Plans • Development Plans • schedules • manpower requirements • tools • Quality Plans • measurable quality goals • success criteria for each project phase • scheduled V&V activities next lecture topic

  7. 7 / 19 2. Life Cycle Components • Software Testing • Reviews • varying levels of formality • specs, designs, code modules, documents, etc • Maintenance • corrective • adaptive • functional

  8. 8 / 19 3. Error Prevention and Improvement Infrastructure • work procedures • templates and checklists • staff training • preventive actions • configuration control • document control

  9. 9 / 19 4. Management Components • Project Progress • schedules, budgets, risk analysis, … • Quality Metrics • Quality Costs

  10. 10 / 19 5. SQA Assessment • Quality Management Standards • SEI CMM • ISO 9001 • Process Standards • IEEE 1012 • ISO 12207 more on these in a moment

  11. 11 / 19 6. Human Components • Management • SQA Unit • SQA committees and forums

  12. 12 / 19 SEI CMM Levels • Initial • ad hoc, perhaps chaotic • Repeatable • tracks costs, has a schedule • similar projects can repeat earlier successes • Defined • process in documented and standardized • Managed • detailed process and product measurements • Optimizing • continuous process improvement

  13. 13 / 19 ISO 15504 • SPICE = Software Process Improvement Capability Determination • framework for process improvement similar to SEI CMM

  14. 14 / 19 ISO Standards for Quality • ISO 9000 : Quality Management and Quality Assurance Standards - Guidelines for selection and use • ISO 9001 : Quality Systems - Model for quality assurance in design/development, installation, and servicing • ISO 9000-3 : Guidelines to applying 9001 to software

  15. 15 / 19 ISO 9000 ISO 9000 seeks to set criteria which achieve a goal and is not prescriptive as to methods. The requirements come in Sections 4 to 8. • Section 4 is entitled General Requirements • Section 5 is entitled Management Responsibility • Section 6 is entitled Resource Management • Section 7 is entitled Product Realization • Section 8 is entitled Measurement, analysis and improvement In each of these areas, ISO 9001: 2000 seeks to set out key requirements, which if met will ensure quality. http://en.wikipedia.org/wiki/ISO_9000

  16. 16 / 19 IEEE Std 1012 - IEEE Standard for Software Verification and Validation 1. Overview 2. Normative references 3. Definitions, abbreviations, and conventions 4. V&V software integrity levels 5. V&V processes 5.1 Process: Management 5.2 Process: Acquisition 5.3 Process: Supply 5.4 Process: Development 5.4.2 Activity: Requirements V&V 5.4.3 Activity: Design V&V 5.4.4 Activity: Implementation V&V 5.4.5 Activity: Test V&V 5.4.6 Activity: Installation and Checkout V&V 5.5 Process: Operation 5.6 Process: Maintenance 6. Software V&V reporting, administrative, and documentation requirements … Annex A Mapping of ISO/IEC 12207 V&V requirements to IEEE Std 1012 V&V activities and tasks

  17. 17 / 19 ISO 12207 • ISO 12207 is an ISO standard for software life cycle processes. • Standard ISO 12207 establishes a process of life cycle for software, including processes and activities applied during the acquisition and configuration of the services of the system. The standard has the main objective of supplying a common structure so that the buyers, suppliers, developers, maintainers, operators, managers and technicians involved with the software development use a common language. This common language is established in the form of well defined processes. http://en.wikipedia.org/wiki/ISO_12207

  18. 18 / 19

  19. 19 / 19 Next… • The Life of Software • Contract Review • Aren't contracts just for lawyers and accountants?

More Related