v_model

The "V" Model- This gets referred to all of the time in industry literature...quite rightly, as it is
probably the best explanation of the basic concepts behind Validation going...

But what is it?

This model relates the development and verification of requirements to the specific validation
phases...

URS/ FRS/ DDS document requirements...

IQ/ OQ/ PQ verify these requirements to complete the validation cycle...

The prototypical V Model diagram below outlines some of the basic relationships...

The V Model is actually built into the OS Diagram...it is placed in context of the overall process
and sequence of the life of a project, which is kind of the whole point...a series of abstract
diagrams out of context do not fully explain what it is that we try to accomplish during an actual
project...

Definitions- the acronyms in the diagram above stand for the following:

URS- User Requirements Specification

FRS- Functional Requirements Specification

DDS- Detail Design Specification

IQ- Installation Qualification

OQ- Operational Qualification

PQ- Performance Qualification

System Build- Physical construction of system in question