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Verification&Validation

For purposes of brevity, Verification and Validation (V&V) are treated as a single topic in this Guide rather than as two separate topics as in the standard (IEEE12207.0-96). “Software V&V is a disciplined approach to assessing software products throughout the product life cycle. A V&V effort strives to ensure that quality is built into the software and that the software satisfies user requirements” (IEEE1059-93).

V&V addresses software product quality directly and uses testing techniques which can locate defects so that they can be addressed. It also assesses the intermediate products, however, and, in this capacity, the intermediate steps of the software life cycle processes.

The V&V process determines whether or not products of a given development or maintenance activity conform to the requirement of that activity, and whether or not the final software product fulfills its intended purpose and meets user requirements. Verification is an attempt to ensure that the product is built correctly, in the sense that the output products of an activity meet the specifications imposed on them in previous activities. Validation is an attempt to ensure that the right product is built, that is, the product fulfills its specific intended purpose. Both the verification process and the validation process begin early in the development or maintenance phase. They provide an examination of key product features in relation both to the product’s immediate predecessor and to the specifications it must meet.

The purpose of planning V&V is to ensure that each resource, role, and responsibility is clearly assigned. The resulting V&V plan documents and describes the various resources and their roles and activities, as well as the techniques and tools to be used. An understanding of the different purposes of each V&V activity will help in the careful planning of the techniques and resources needed to fulfill their purposes.

The plan also addresses the management, communication, policies, and procedures of the V&V activities and their interaction, as well as defect reporting and documentation requirements.

Reviews and audits

For purposes of brevity, reviews and audits are treated as a single topic in this Guide, rather than as two separate topics as in (IEEE12207.0-96). The review and audit process is broadly defined in (IEEE12207.0-96) and in more detail in (IEEE1028-97). Five types of reviews or audits are presented in the IEEE1028-97 standard:

  • Management reviews
  • Technical reviews
  • Inspections
  • Walk-throughs
  • Audits

Management reviews

The purpose of a management review is to monitor progress, determine the status of plans and schedules, confirm requirements and their system allocation, or evaluate the effectiveness of management approaches used to achieve fitness for purpose. They support decisions about changes and corrective actions that are required during a software project. Management reviews determine the adequacy of plans, schedules, and requirements and monitor their progress or inconsistencies. These reviews may be performed on products such as audit reports, progress reports, V&V reports, and plans of many types, including risk management, project management, software configuration management, software safety, and risk assessment, among others.

Questions & Answers

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Mark Reply
Which of these are standards for assessing software processes
own Reply
team a found 342 errors during the software engineering process prior to release. team b found 184 errors. what additional measures would have to be made for projects a and b to determine which of the teams eliminated errors more efficiently? what metrics would you propose to help in making the determination? what historical data might be useful?
Kaviya Reply
it's depend upon software testing and debugging
OMKAR
what is coding
Waswa Reply
programming languages is a coding it is also used software development, designing, modeling, etc..
OMKAR
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Ichaba
AND here lot of course
OMKAR
How to calculate the basic salary of a payroll in Java coding?
Adjei Reply
ত্তচুরভহব
Parvez
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Bahadur
but we have tobe serious in k.dge.. what is the meaning of java coding if you are gineous you will answer me
Eyiba
Quids on software engineering
Enongene Reply
software testing practice
Prerana
Ho
Rang
definition of software
Baba Reply
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Gurmeet Reply
iom
ADNAN
hello
arsh
hari Paulus hai
Hari
System is the way of Execution or a set of principles to do something or any task is called System.
Ayesha
There are many infinite forms and Types of System in different fields as well.
Ayesha
TELL ME ABOUT MAINFRAME?
OMKAR
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Md
System is the way of Execution or a set of principles to do something or any task is called System.
Sazed
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Riyanshu Reply
very important
arsh
2d
Dv
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Md
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Ravindra Reply
Software engineering is a detailed study of engineering to the design, development and maintenance of software
arsh
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Akash Reply
it depend on organization's and quality
josephat
I think average salary 80000us dollars per year
arsh
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BANDARU Reply
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BANDARU Reply
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BANDARU
hi
khushboo
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khushboo
code debug
khushboo
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khushboo
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khushboo
what is the salary of software engineer
Akash
per month
Akash
please tell me what is the salary of software engineer per monthe
Akash
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OMKAR
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Source:  OpenStax, Software engineering. OpenStax CNX. Jul 29, 2009 Download for free at http://cnx.org/content/col10790/1.1
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