Tag Archives: requirement


Posts Tagged ‘requirement’

Communicating Requirements – Effectively! – What is a requirement?

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

This is part 2 of the blog series “Communicating Requirements – Effectively”. Part 1 of this series introduced the overall topic of communicating requirements and addressed communication of requirements from several perspectives: traditional systems engineering, model-based systems engineering, and Agile. … Read More

Requirements – What’s the Big Deal????

Posted on: February 28th, 2017 by Lou Wheatcraft No Comments

Note: this is an update to this blog originally published in 2012. Preparing for the future A constant throughout the evolution of systems engineering is an ever-increasing complexity of systems which can be observed in terms of the number of … 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

Writing and Reviewing Requirements – Who is qualified?

Posted on: April 15th, 2014 by Lou Wheatcraft No Comments

A common question we are asked is “What level of competency is needed for those developing and reviewing requirements?” The short answer is everyone involved in requirement elicitation, development, review, implementation, verification, validation, operations, maintenance, etc. needs to have training … Read More