In the course of my teaching CORE™ and GENESYS™ to customers I am often asked “How does all of the things you have taught us apply to completion of the System Requirement Review?” The answer to this question lies first in understanding why do we do the System Requirements Review …

I recently read an article in Quality Progress magazine (a monthly publication of the American Society for Quality) which talked about focusing on the problem before determining a solution. In this article the author quoted two prominent thinkers, Albert Einstein and Abraham Lincoln. Albert Einstein said: “If I only had …

By Ron Kratzke, Vitech Principal Systems Engineer Recently we had a couple of customer questions regarding when to employ a Use Case and when to develop a Thread or a Scenario. There is no hard and fast answer to this question and much of what you should develop depends on …

By Ron Kratzke, Vitech Principal Systems Engineer Recently I have fielded several questions regarding the use of the State Transition Diagram in CORE and how States/Modes and the diagram relate to system behavior and simulation of the system behavior using CORESim. State transition diagrams describe the logical transition of a …