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What is the difference between verification and validation? Part 1

Posted on: December 31st, 2015 by Lou Wheatcraft 3 Comments

A question we are often asked is “What is difference between verification and validation?” This two-part blog answers that question.  In part 1 we discuss the basic concepts of verification and validation in terms of the context in which they … Read More

What is the Proper Form of Texted Based Requirements?

Posted on: September 30th, 2014 by Lou Wheatcraft No Comments

The definition of a product requirement is “Something the product must do or a quality that the product must have.”  Alternatively, more formally, “A requirement statement is the result of a formal transformation of one or more needs into an … Read More

Is the Requirement Verifiable?

Posted on: February 11th, 2013 by Lou Wheatcraft No Comments

This is another common question.  It is also a major complaint of both developers and testers.  Developers often receive requirements from their customers that are not verifiable.  How many times do we see requirements like the following: “The system shall … Read More

How do you know your requirements are complete?

Posted on: August 16th, 2012 by Lou Wheatcraft No Comments

The bottom line is the set of requirements is complete when all the stakeholders have approved the set of requirements. Define Scope before you write your requirements. From Requirements Expert’s viewpoint, it is that, but more.   What we advocate in … Read More