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Posts Tagged ‘system verification’


Implementation in Requirements – Internal Directive (i.e., Constraint) to use a Legacy Component.

Posted on: May 15th, 2017 by Lou Wheatcraft No Comments

We were recently asked the following question from one of our clients: “Our company is updating/replacing a legacy system.  The current system includes an embedded processor that was already built long ago and was developed without any requirements (at least … Read More

What is the difference between verification and validation? Part 2

Posted on: January 15th, 2016 by Lou Wheatcraft No Comments

This is the second of our two-part blog concerning verification and validation.  In part 1 we discussed the basic concepts of verification and validation in terms of the context in which they are used within the system development lifecycle. In … Read More

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 Biggest Obstacle to Good Requirements?

Posted on: November 15th, 2014 by Lou Wheatcraft 4 Comments

I was recently asked the question: “What do you think is the biggest obstacle to good requirements documentation? I have been doing this for 25+ years and never see the end product match the requirements…..” I smiled when I saw … Read More

Should the “testors” be involved in requirements development?

Posted on: March 31st, 2014 by Lou Wheatcraft 1 Comment

On more than one occasion, I have been asked about early involvement of the test team.  To paraphrase a most recent question, I was asked:: “I have studied different articles about this new tendency of involving testers earlier in the … Read More