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Archive for the ‘Ask the Experts’ Category


RE Experts at IS 2018 – Update

Posted on: July 2nd, 2018 by Lou Wheatcraft No Comments

IS 2018 in Washington DC is fast approaching.  I hope you will be able to attend. The Requirement Working Group (RWG) is scheduled to meet for 2 hours on Monday, July 9 from 10:00 am till noon in Room Latrobe … Read More

Seminar on MBSE Challenges in Huntsville, Al March 8, 2018

Posted on: February 28th, 2018 by Lou Wheatcraft No Comments

Implementing a model-based systems engineering (MBSE) process is difficult. I have been invited to be one of three speakers at a half-day seminar at the Huntsville Marriott at The Space & Rocket Center.  The title of the seminar is: “Overcoming … 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

When a system is modified, does its TRL change?

Posted on: August 30th, 2017 by Lou Wheatcraft No Comments

I was recently asked the question. “When a project begins with a existing device that has a TRL of 9, with the goal to develop a miniaturized version of the device, is the TRL of miniaturized version of the device … Read More

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