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tell me about v model

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Question by ask
Submitted on 7/30/2003
Related FAQ: comp.software.testing Frequently Asked Questions (FAQ)
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tell me about v model


Answer by jagadeesh
Submitted on 8/2/2003
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'V' shape model describes about the process about the construting the application at a time all the Analysing, designing, coding and testing will be done at a time. i.e once coding finishes it'll go to tester to test for bugs if we got OK form tester we can immediately start coding after coding again send to tester he'll check for BUGS and will send back to programmer then he,programmer can finish up by implementing the project.
it is the model what is using by most of the companies.

 

Answer by anita
Submitted on 8/6/2003
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v model is model in which testing is done prallelly with development.left side of v model ,reflect development input for the corresponding testing activities.

 

Answer by Niranjan
Submitted on 10/21/2003
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V model is the classic software development model.  It encapsulates the steps in Verification and Validation phases for each step in the SDLC. For each phase, the subsequent phase becomes the verification (QA) phase and the corresponding testing phase in the other arm of the V becomes the validating  (Testing) phase

 

Answer by Ian
Submitted on 11/12/2003
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Does any one know of a website that includes samples of the different diagrams.

Thank you
Ian

 

Answer by karthi_dk
Submitted on 11/28/2003
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In the Software Development Life Cycle,both the Development activity and the testing activities starts almost at the same time with the same informations in their hands. The development team will apply "do-procedures" to achieve the goals and the testing team will apply "Check-procedures" to verify that. Its a parallel process and finally arrives to the product with almost no bugs or errors

 

Answer by Farhan
Submitted on 12/4/2003
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V model is where Parallel work goes simontaneously , its verification ......, Validation....,

 

Answer by sigma
Submitted on 12/16/2003
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V model is a definition in psychology. When a human being faces a change in its environment, at first it feels so motivated and enthusiastic but later, when he frustrates, the motivation goes down deeply. But at the end, when he sees the light at the end of the tunnel, suddenly the motivation starts to go up. This is called V model.

 

Answer by Icon
Submitted on 1/8/2004
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Some of the answers I find here are too rudimentary. People talkin on these boards should think twice as they could mis-guide newbies

 

Answer by vp
Submitted on 1/28/2004
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Traditional Water fall model will not allow to do the testing and the coding process in parallel. V - model in the SDLC will allow the process to have testing and coding as a parallel activity which enables the changes to occur more dynamic.

 

Answer by vp
Submitted on 1/28/2004
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Traditional Water fall model will not allow to do the testing and the coding process in parallel. V - model in the SDLC will allow the process to have testing and coding as a parallel activity which enables the changes to occur more dynamic.

 

Answer by Hex
Submitted on 2/12/2004
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http://www.comp.glam.ac.uk/pages/staff/bfjones/seminal/seminal1/sld002.htm

 

Answer by simon
Submitted on 2/27/2004
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The V model is a method of software development, which allows visibility of where we are by stages.  Development goes hand in hand with testing and validation, where each step is baselined before proceeding to the next.  It replace the waterfall model of the 1970s.  It has now been superceded by approaches such as evolutionary and iterative methods.

 

Answer by Lubna
Submitted on 4/2/2004
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The V Model, while admittedly obscure, gives equal weight to testing rather than treating it as an afterthought.
Initially defined by the late Paul Rook in the late 1980s, the V was included in the U.K.'s National Computing Centre publications in the 1990s with the aim of improving the efficiency and effectiveness of software development. It's accepted in Europe and the U.K. as a superior alternative to the waterfall model; yet in the U.S., the V Model is often mistaken for the waterfall.
The V shows the typical sequence of development activities on the left-hand (downhill) side and the corresponding sequence of test execution activities on the right-hand (uphill) side.
In fact, the V Model emerged in reaction to some waterfall models that showed testing as a single phase following the traditional development phases of requirements analysis, high-level design, detailed design and coding. The waterfall model did considerable damage by supporting the common impression that testing is merely a brief detour after most of the mileage has been gained by mainline development activities. Many managers still believe this, even though testing usually takes up half of the project time.

 

Answer by Adisehsu
Submitted on 4/7/2004
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V- model is a process where the development and testing phases can do parallely. For every development phase there is a testing phase. Development phases are called as verification whereas testing phases are called as validation. Here verification means the software implements correctly or not. Validation means the software that has been built is traceable to the customer requirements or not.

Adiseshu

 

Answer by harry singh
Submitted on 4/15/2004
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http://www.softwaredioxide.com/Channels/events/testing2001/Proceedings/vijay_honeywell.pdf

 

Answer by srinivas
Submitted on 5/2/2004
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V-model is one of the sdlc and stlc . it includes testing from the unit level to bussiness level . That is after completing the coding tester starts testing the code by keeping the design phase documents that all the modules had been integrated or not ,after that he will verify for system is according to the requirements or not , and atlast he will go for business scenarios where he can validate by the customer and he can do the alpha testing and beta testing . And atlast he decides to have the complete stable product.

 

Answer by Anil Jadhav
Submitted on 6/14/2004
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V Model is the process model to provide quality product by combining SDLC and STLC. In this model Both SDLC & STLC works parallely. Left Hand side of the V model contains SDLC in downhill direction whereas right hand side of the V model contains STLC in Uphill direction.

 

Answer by bala
Submitted on 6/17/2004
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In V model approach when the System test cases, integration, UA test cases are written. My understanding is, UAT & System test cases are written at the early stage of design phase followed by integration test cases. At the end of design stage, along with the design artifacts, these test cases should also be signed off.

Please clarify.

 

Answer by Anil
Submitted on 7/11/2004
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The V model shows the Development Cycle Stages and Maps it to Testing Cycles,but it fails to address how to start for all these test levels in parallel to development.It is a parallel activity which would give the tester the domain knowledge and perform more value added,high quality testing with greater efficiency.Also it reduces time since the test plans,test cases.test strategy are prepared during the development stage itself.

 

Answer by Anil
Submitted on 7/11/2004
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The V model shows the Development Cycle Stages and Maps it to Testing Cycles,but it fails to address how to start for all these test levels in parallel to development.It is a parallel activity which would give the tester the domain knowledge and perform more value added,high quality testing with greater efficiency.Also it reduces time since the test plans,test cases.test strategy are prepared during the development stage itself.

 

Answer by NSR
Submitted on 8/19/2004
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Actually V-Model follows IVV method (Independent  Verification and Validation).
In this method testing is done prallelly with development . The left side of the V reflects Verification and  right of the V reflects Validation.

 

Answer by sagar
Submitted on 9/7/2004
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in this process , testing starts in parallel with programming for the speedy completion of the project

 

Answer by Nanda/Trevi/Shivu
Submitted on 9/13/2004
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Verification & Validation processes propose the Software Development V-model. This process considers development and testing to be a V. The left side of the V is the development and the rightside is Testing.

At each point down the left side of the V there is a corresponding Test that checks whether the development is correct.The tests proposed at each level can be planned and designed in parallel to lower level activities being conducted. This way as we come up the right side of the V, the testing is ready to commence.

 

Answer by Shilpa Gattani
Submitted on 9/22/2004
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V model is integration of software developement & testing. Both the activities go together. Output of previous step is input to the next step.

Verifications & validations both the activities performed together.

 

Answer by chandu
Submitted on 9/30/2004
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V model Method is best method for testing

In SDLC is is Both development and testing activities starts at almost same time
We can say it as Parllal is process .Finally we arrives to the bugs free product

 

Answer by santosh kumar.k
Submitted on 10/1/2004
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V model is basically "Verification" and "Validation" model in this model both the development and test activities takes place simultaneously this model is a most optimized model.In this initially after completion of first phase of development then the testing team will prepare test cases for that phase and it continues like that up to last phase.

 

Answer by Ashy
Submitted on 10/10/2004
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like....huhuhuhuhuhuhu

 

Answer by Tariq
Submitted on 11/5/2004
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In real Life if you see the V Model it is a failure. there are many Reasion for that but right now i will tell you the one reasion. In real Life you will Never get the all requirments while you are in SDLC phas II. where you have to Decide what SDLC model you are going to use in project life. so for that you the V model needs all the Requirment if i am Not wrong. if there are some changes later on in requirments. so the V model failed over here. there are many other Reasions.

 

Answer by dsfdfdfd
Submitted on 11/26/2004
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dfdfasdfasdfassdfsfsdfdsfszfssdffsd

 

Answer by Ajit Rao
Submitted on 12/6/2004
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The 1:1 left-right mapping in the V or Hinged Waterfall model surely helps in easing the cumbersome activity of Testing (in the right side of the V model) which otherwise would is a nightmare in the Waterfall model.

 

Answer by NAG
Submitted on 1/17/2005
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V-model shows the development cycle stages and maps it to testing cycle.
Because testplan,testcase,test strategy everything is done in the coding stage.
Validation means the software that has been built is traceable to the customer requirements or not.

 

Answer by euluis
Submitted on 1/20/2005
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This article in SDMagazine, by Robin F. Goldsmith and Dorothy Graham, explains it:
http://www.sdmagazine.com/documents/s=7224/sdm0207e/0207e.htm

 

Answer by Gursharan
Submitted on 2/16/2005
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http://www.cutter.com/itjournal/rightupfront.html

 

Answer by Hub van de Bergh
Submitted on 3/5/2005
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Application of V-model is not limited to software engineering. See www.hvdb.tk for a diagram and description of the V-model.

 

Answer by swanand
Submitted on 3/14/2005
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In V-Module, Development and Testing works parallel to each other. it is from Business Requments upto codeing.Tester work with developer.Unit Testing, Integration Testing, System Testing, Acceptance Testing. works with Development Cycles like. coding ,functional design,Internal design, business concepts.

 

Answer by Farqualeet Ishrat
Submitted on 3/29/2005
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V model is the model in which the development of the software and the testing is done simultaneously.

 

Answer by bhuvana
Submitted on 3/29/2005
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Every individual phase grows in the shape of of 'V' and hence bares this name; this is the most widely used model for new development. The actual process of testing starts right from the beggining of development

 

Answer by qwerty
Submitted on 4/4/2005
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who cares

 

Answer by debadatta
Submitted on 4/26/2005
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V model is the parallel processing where development and testing process are done simultaneously. the right side is testing prosess and left side is developing process.

 

Answer by Phani
Submitted on 5/19/2005
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In the Software Development Life Cycle,both the Development activity and the testing activities starts almost at the same time with the same informations in their hands. The development team will apply "do-procedures" to achieve the goals and the testing team will apply "Check-procedures" to verify that. Its a parallel process and finally arrives to the product with almost no bugs or errors.

 

Answer by hari
Submitted on 5/23/2005
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In V-Model We can found a BUG in early stage so time span should be very less.

 

Answer by TinTin
Submitted on 5/24/2005
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V model is a parallelisation of testing with first step of SDLC. The V model is customisable and one can comfortably generate a W model when working with programs instead os projects. My personal experience says it is only good to have management's participation and not good for day-to-day working!

 

Answer by nandamuri
Submitted on 7/12/2005
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The V model shows the Development Cycle Stages and Maps it to Testing Cycles,but it fails to address how to start for all these test levels in parallel to development.It is a parallel activity which would give the tester the domain knowledge and perform more value added,high quality testing with greater efficiency.Also it reduces time since the test plans,test cases.test strategy are prepared during the development stage itself.

 

Answer by mike
Submitted on 7/18/2005
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V model is nothing but SDLC AND STLC , SDLC AND STLC activities will start at the same time with help of baseline documents .

SDLC:  REQUIREMENT ANALYSIS --> HIGH LEVEL DESIGN ---> LOW LEVEL DESIGN -- CODING

STLC : UNIT TESTING ---> INTERGRATION TESTING --->SYSTEM TETSING ---> ACCEPTANCE TETSING

SDLC AND STLC should be parrelel process in order to deliver the product ...

 

Answer by dinesh kumar dash
Submitted on 7/27/2005
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V- model testing is a type of testing which test different phases of SDLC.
#It means give equal weight to testing
as compare as devloping.
#It means to improving the efficiency&effectiveness of software development.

#It means V-shows the typical sequence of developments activities and other hand it shows sequence of test execution activities.

 

Answer by k.k.vinod
Submitted on 8/10/2005
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1.When does Testing activities start in the V-model of SDLC?

 

Answer by Sandip Sabnis
Submitted on 8/23/2005
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V-Model defines process of development of software in a structured manner where development and quality assurance employees start parallel working. In each phase of software development life cycle QA people helps development team by giving the research inputs. This type of process of development of software is the V-Model.

 

Answer by Titli
Submitted on 9/2/2005
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In the V-Model,test cases are prepared as soon as the business requirements are being decided.This ensures the cost saving by parallel activity of designing and testing.Thus the verification and the validation activity runs in parallel.  

 

Answer by Dinesh Kumar
Submitted on 9/23/2005
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V- model is a process where the development and testing phases can do parallely. For every development phase there is a testing phase. Development phases are called as verification whereas testing phases are called as validation. Here verification means the software implements correctly or not. Validation means the software that has been built is traceable to the customer requirements or not.

 

Answer by Dinesh Kumar
Submitted on 9/23/2005
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'V' shape model describes about the process about the construting the application at a time all the Analysing, designing, coding and testing will be done at a time. i.e once coding finishes it'll go to tester to test for bugs if we got OK form tester we can immediately start coding after coding again send to tester he'll check for BUGS and will send back to programmer then he,programmer can finish up by implementing the project.
it is the model what is using by most of the companies.

 

Answer by Chris
Submitted on 9/25/2005
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The V-Model breaks down a typical SDLC heirarchy of documents and maps associated test phases to it (ie, Business Processes and Requirements to UAT, Functional Specifications to System Test, Technical Design or System Architectures to String or Assembly Test, Detailed Design to Unit Test)This assists greatly in 2 areas, 1) Design review - It allows for document static testing to be performed (testing for Ambiguity, completeness etc..) and 2) Provides direct traceability for Test Scripting and execution activity solving perennial arguments of definition of what test activity each test phase should be performing

 

Answer by chidu
Submitted on 10/12/2005
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Check out the website www.coleyconsulting.co.uk/testtype.htm to learn more about V-model.

 

Answer by Babu.j
Submitted on 10/17/2005
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V-Model

   V stands for verification and validation this modules define the mapping between Development Stage And  Testing Stage

Tools => Test Director for Test Doc’s Maintains




Development Stage                        Testing Stage            


Information                                  1. Assument of
                    Development Plan
gathering                                   2. Prepare Test Plan
3. Requirement Phase              Testing      

Design & coding                      1. Design Phase Testing
                          2. Program Phase Testing
                              [White Box Testing]

     Build                          1. Functional & System Testing
                                        [Black Box Testing]
                                2. User acceptance Testing
                                 3. Test Doc’s maintains

Maintains            1. Port Testing    
                     2. Test Software Change    
                     3. Test affiance





                       4:11   

 

Answer by Geo
Submitted on 10/24/2005
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V-model is the best model that can be implemented in SDLC(Software Development Life cycle).Testing and Development progresses parallely so that developers and testers can communicate effectively which leads to a quality product

 

Answer by swapna
Submitted on 11/7/2005
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V-model defines mapping between development process and testing process. V stands for verification and validation

 

Answer by Wasim U Shariff
Submitted on 11/14/2005
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V Model is a model designed for SDLC. SDLC stands for SDLC [Software Development Life Cycle]. The SDLC contains various stages as 1)Requirement of the client 2)High Level Design 3)Detailed Level Design 4)Coding 5)Testing.

 

Answer by Manjula
Submitted on 11/15/2005
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In V-model, as most of them have explained, testing does not take place parallely with development. To be precise, in V-model, testing is done at the end of each phase of SDLC.

 

Answer by Sapan
Submitted on 11/28/2005
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V Model is a sequential path of executing of process. Each phase must be completed before the next phase begins. Testing is emphasized more in this this model. The testing procedures are developed early in this lifecycle. before any coding is done.

 

Answer by Sapan
Submitted on 11/28/2005
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V Model is a sequential path of executing of process. Each phase must be completed before the next phase begins. Testing is emphasized more in this this model. The testing procedures are developed early in this lifecycle. before any coding is done.

 

Answer by anand.d.s.
Submitted on 12/4/2005
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i v model both development and testing are in paralle procell , in any stage(after completing 90 % of the project means near to project delivary) we can change the requrement , and it s very cheap model , suitable for all types (big and small project) of projects, it s a time consumeing model , bcz in waterfall model we can do the testing after complting the code but ibn case of water fall model codeing(development) and testing both r in parallel process

 

Answer by Ashish Bajpai.
Submitted on 12/21/2005
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V-Model is the most suitable model to implement from testing point of view, Where the Validation and verification goes hand in hand.

The Left Side of V-Model i.e. the validation arm of model, consist of four phases of S/W development, these are: Requiremets, Analysis, Designing and Coding

The Vertex of 'V' in v-Model is Unit Testing, i.e. basically done by developers only.

The Right side i.e. the verification hand of V-Model, comparises of four testing phases i.e. Integration testing, System Testing, and User Acceptance testing.

 

Answer by Srinivasa Pakala
Submitted on 12/27/2005
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The V Model, while admittedly obscure, gives equal weight to testing rather than treating it as an afterthought.
Initially defined by the late Paul Rook in the late 1980s, the V was included in the U.K.'s National Computing Centre publications in the 1990s with the aim of improving the efficiency and effectiveness of software development. It's accepted in Europe and the U.K. as a superior alternative to the waterfall model; yet in the U.S., the V Model is often mistaken for the waterfall.
The V shows the typical sequence of development activities on the left-hand (downhill) side and the corresponding sequence of test execution activities on the right-hand (uphill) side.
In fact, the V Model emerged in reaction to some waterfall models that showed testing as a single phase following the traditional development phases of requirements analysis, high-level design, detailed design and coding. The waterfall model did considerable damage by supporting the common impression that testing is merely a brief detour after most of the mileage has been gained by mainline development activities. Many managers still believe this, even though testing usually takes up half of the project time.


Traditional Water fall model will not allow to do the testing and the coding process in parallel. V - model in the SDLC will allow the process to have testing and coding as a parallel activity which enables the changes to occur more dynamic.

 

Answer by rahul QA
Submitted on 12/28/2005
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V Model describes parellel activites of verification and validation

The V-model is a graphical representation of the system development lifecycle.
It summarizes the main steps to be taken in conjunction with the corresponding deliverables within computerized system validation framework.

Verifcation is the different set of activities which ensure that how the product is tracable accoring the requirement specification

Validation is the different set of activities which ensure that how the product is tracable accoring the needs of client/customer

walkthrough,inspection which are included in verification
Testing is validating the specified requirement

verification involves application of the system in simulated environment

validation involves application of the system in real time environment

 

Answer by Rajan Sharma
Submitted on 12/30/2005
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The V-model associates each development activity with a test or validation at the same level of abstraction. Each development activity builds a more detailed model of the system than the one before it, and each validation tests a higher abstraction than its predecessor.

Rajan Sharma
LIPS 1 Batch

 

Answer by Israr
Submitted on 1/10/2006
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The V model approach to software development assists with the task of testing the software, the testing stages are parralell to the development process. This gives an option of testing and diagnosing the test failures during development process.  

 

Answer by mutiat Afodun
Submitted on 1/15/2006
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V model is simply a graphical representation of the system development life cycle.ot summarises the main steps to be taken in line with the corresponding delivarables within the computerised system validation framework

 

Answer by mutiat Afodun
Submitted on 1/15/2006
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Vmodel is simply a graphical representation of the system development life cycle.it summarizes the main steps to be taken in line with the corresponding deliverables within the computerized system validation framework

 

Answer by sikander
Submitted on 2/22/2006
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http://www.cs.toronto.edu/~sme/CSC444F/slides/L04-Lifecycles.pdf

 

Answer by bupeesh
Submitted on 3/1/2006
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Generally, now a days v model is using in every software company. because developement team  starts the work with designing and coding. at the same time testing team must start the work. in this model, advantage is testing team will not wait for developement team to finish their work. it is advantage for company also. In earlier unnecessary company has to pay for testers. because they were waited for complete the coding. but in  V model parellaly they can start their work. And complete the project within the require time.  

 

Answer by Bhanu P. Chaudhary
Submitted on 3/6/2006
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V-Model is a combination of SDLC and STLC in which more emphasis is given on Validation and Verification processes. The validation is involved in downhill side, while the verification is involved in both sides. The aim is to provide higher quality product by performing Validation and Verification at various stages.

 

Answer by Rajat Kumar Phull
Submitted on 3/11/2006
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The left tail of the V represents the specification stream where the system specifications are defined. The right tail of the V represents the testing stream where the systems is being tested (against the specifications defined on the left-tail). The bottom of the V where the tails meet, represents the development stream.

 

Answer by shaws
Submitted on 4/10/2006
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Question: Can you name a company in recent times that have use "V-model" successfully?

 

Answer by Nishant
Submitted on 4/12/2006
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The V model shows the Development Cycle Stages and Maps it to Testing Cycles,but it fails to address how to start for all these test levels in parallel to development.It is a parallel activity which would give the tester the domain knowledge and perform more value added,high quality testing with greater efficiency.Also it reduces time since the test plans,test cases.test strategy are prepared during the development stage itself.

 

Answer by shiva
Submitted on 4/22/2006
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In "V" model "V" stands for verification and validation.This model defines practical mapping in between development process stages and testing stages.

 

Answer by lastman
Submitted on 5/12/2006
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http://www.tzi.de/~uniform/gdpa/

 

Answer by THE TESTER (f)