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Posts Tagged ‘levels of requirements’


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

Leveling Requirements

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

I was recently asked the question. “Suboptimal leveling of requirements seems to be a recurring issue for the projects in my business group (we’ve even seen low-level mechanical dimensions specified in the system requirements). We’ve been reading through the INCOSE … Read More

Levels of abstraction when writing requirements

Posted on: May 1st, 2017 by Lou Wheatcraft No Comments

Requirements Experts recently received an email from one of our clients seeking advice on levels of abstraction when stating requirements.  The email read as follows: “What are your thoughts on the use of “shall prevent” in a requirement. I believe … Read More

How Well Are Your Requirements Connected?

Posted on: December 31st, 2013 by Lou Wheatcraft No Comments

On our Ask the Experts page , the following question was asked: “I am a systems engineer currently involved in a complex aerospace system development.  While I was searching for some related topics on requirements management, your interesting website was … Read More

Avoiding Implementation

Posted on: March 18th, 2013 by Lou Wheatcraft 5 Comments

We were recently asked the following question: “How do you determine that a requirement is talking about “how” not “what”?  It is always a problem that bothers us during requirement definition.  As requirement engineers, we have less technical knowledge, so … Read More