Category: Uncategorized

The Human-Machine-Environment Matrix And Use Cases

By Gareth Digby, Vitech Principal Systems Engineer Summary Eliciting the requirements for a system is an important first step in the system’s creation. Use cases provide an effective means of capturing the stakeholder’s understanding of the system’s needs. This post demonstrates how Chapanis & Fitts’ “Human-Machine-Environment” Matrix can provide a …

Continuing the Discussion: Relationship Attributes

By Ron Kratzke, Principal Systems Engineer The following conversation is a question and response on the Vitech Community Site Forums– feel free to comment on the forums or join the Vitech LinkedIn page with your questions! For the “Performs/Allocated To” relation between Components and Functions or Performers and Operational Activity …

MBSE and SysML: Twins or Just Friends?

MBSE and SysML have spent some time growing up together – and even gotten popular together, and now they’re finding that many are confusing them as twins, or even two names for the same concept. Although both can complement each other and many organizations find systems engineering success using SysML …