Answer / himanshu patel

It is basically divided into two parts... Verification and
Validation
This model is important in Testing because it has seperate
testing part for each and every phase.
V Model is having following stages:
>> Requirements Analysis
In this phase, we get the requirements from client, analyze
them and freeze the feasible requirements.

>> System Design
In this phase, we design the entire system means DB Design,
Data Dictionaries, Forms, screens etc.

>> Architecture Design
In this phase, the architecture of the system is done. the
architecture means weather its a web based application,
Desktop Application, Client Server Architecture etc. It is
also known as High Level Design.
>> Module Design
Here, individual modules are designed. It is also called
Low Level Designing.
>> Coding
In this phase, actual coding will take place. Programmers
will do the actual programming of the application.
>> Module Testing
In this Phase, programmers will test the module which they
have developed by their self. Here, no QA/QC are involved.
>> Integration Testing
Here, the integration testing is done to make sure that
after integrating various modules of the system the system
as a whole is working fine and the referential integrity is
maintained or not.
>> System Testing
Here entire system is tested by different types like
performance, stress, usability, installation/uninstallation,
backup/recovery etc,.
>> User Acceptance Testing
This is generally done by users of the system. They verify
weather their requirements are met by the system or not.

Answer / ramyasri

Hai...

Conventional V-Model represents the development process in
the form of a V shape. The right side of the V represents
the testing where the systems is validated against the
specifications defined on the left side. The meeting point
of the V represents the actual development

Business Requirements Acceptance Testing
\ /
SRS SYSTEM TESTING
\ /
HLD INTEGRATION TESTING
\ /
LLD UNIT TESTING
\ /
CODING

The V-model is a graphical representation of the systems
development lifecycle. The V-model is a software
development process which can be presumed to be the
extension of the waterfall model. Instead of moving down in
a linear way, the process steps are bent upwards after the
coding phase, to form the typical V shape. The V-Model
demonstrates the relationships between each phase of the
development life cycle and its associated phase of testing.


The four main process phases – requirements, specification,
design and implementation – have a corresponding
verification and validation testing phase.Implementation of
modules is tested by unit testing, system design is tested
by integration testing, system specifications are tested by
system testing and finally acceptance testing verifies the
requirements.

The V-model gets its name from the timing of the phases.
Starting from the requirements, the system is developed one
phase at a time until the lowest phase, the implementation
phase, is finished. At this stage testing begins, starting
from unit testing and moving up one test level at a time
until the acceptance testing phase is completed.

Thanks & Regards
B.Ramyasri

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