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Neelima

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Neelima

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  1. Topics - Session I • Quality Principles • Software Process • Software Development Life Cycle

  2. What is Software Testing ? What is Software Development ?

  3. Software Testing Testing is a process of evaluating a system by manual or automatic means and verify that it satisfies specified requirements or identify differences between expected and actual results.

  4. Why Software Testing? • Software Testing is important as it may cause mission failure, impact on operational performance and reliability if not done properly. • Effective software testing - deliver quality software products - satisfying - user’s requirements, needs and expectations.

  5. Who participates in testing ? • Software customer • Software user • Software developer • Software Tester • Information service management • Senior organization management

  6. QUALITY PRINCIPLES

  7. What is Quality ? • Quality is defined as meeting the customer’s requirements for the first time and every time. • Quality is much more than the absence of defects which allows us to meet customers expectations.

  8. Why Quality ? • Quality is the important factor affecting an organization’s long term performance. • Quality improves productivity and competitiveness in any organization.

  9. Quality Assurance Quality assurance is a planned and systematic set of activities necessary to provide adequate confidence that products and services will conform to specified requirements and meet user needs. *It is process oriented. *defect prevention based.

  10. Quality Control Quality control is the process by which product quality is compared with applicable standards and the action taken when non conformance is detected. * It is product oriented. * defect detection based.

  11. Factors Influencing a project • Quality • Cost • Schedule

  12. Software Process “A particular method of doing some thing, generally involving a number of steps or operations “ The process that deals with the technical and management issues of software development is called Software Process

  13. Software Process • Like all process the software development process follows a cycle comprised of the following four components. • Plan(P): Device a plan.Define your objective and determine the strategy and supporting methods required to achieve that objective. • Do(D): Executive the plan. Create the conditions and perform the necessary training to execute the plan.

  14. Software Process • Check (C): Check the results. Check to determine whether work is progressing according to the plan and whether the results are obtained. • Action (A): Take the necessary action. If your checkup reveals that the work is not being performed according to plan or that results are not what was anticipated device measures for appropriate action.

  15. Standards (or) Certifications ISO - International Organization for Standard SEI CMM - Software Engineering Institute - Capability Maturity Model(Carnegie Melon University) PCMM - People Capability Maturity Model Six Sigma - Zero Defect Orientation.

  16. CMM -5 Levels CMM level 5 Optimizing CMM level 4 Managed CMM level 3 Defined CMM level 2 Repeatable CMM level 1 Initial

  17. SOFTWARE DEVELOPMENT LIFE CYCLE (SDLC) • Requirement Analysis • Design • Development • Testing • Implementation • Maintenance

  18. Requirement Analysis • SRS - Software Requirement Specification • SRAS -Software Requirement Analysis Specification • SRS - FS (Functional Specification)

  19. DESIGN • Design Phases: • HLD : High Level Design. (System Design Document) • LLD: Low Level Design. (Detailed Design Document) • HLD+LLD => CDD (Comprehensive design document).

  20. Coding - Testing - Maintenance • Coding :According to the Coding Format • Testing => Static(review) , Dynamic • Maintenance : Product Based Company ; Project Based Company ;

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