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Topics - Session I

  • Quality Principles

  • Software Process

  • Software Development Life Cycle


What is Software Testing ?

What is Software Development ?


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.


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.


Who participates in testing ?

  • Software customer

  • Software user

  • Software developer

  • Software Tester

  • Information service management

  • Senior organization management


QUALITY

PRINCIPLES


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.


Why Quality ?

  • Quality is the important factor affecting an organization’s long term performance.

  • Quality improves productivity and competitiveness in any organization.


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.


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.


Factors Influencing a project

  • Quality

  • Cost

  • Schedule


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


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.


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.


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.


CMM -5 Levels

CMM level 5 Optimizing

CMM level 4 Managed

CMM level 3 Defined

CMM level 2 Repeatable

CMM level 1 Initial


SOFTWARE

DEVELOPMENT

LIFE CYCLE

(SDLC)

  • Requirement Analysis

  • Design

  • Development

  • Testing

  • Implementation

  • Maintenance


Requirement Analysis

  • SRS - Software Requirement Specification

  • SRAS -Software Requirement Analysis Specification

  • SRS - FS (Functional Specification)


DESIGN

  • Design Phases:

    • HLD : High Level Design. (System Design Document)

    • LLD: Low Level Design. (Detailed Design Document)

    • HLD+LLD => CDD (Comprehensive design document).


Coding - Testing - Maintenance

  • Coding :According to the Coding Format

  • Testing => Static(review) , Dynamic

  • Maintenance : Product Based Company ; Project Based Company ;


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