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 …

Its that time again. Once the presents are opened, the carols are sung and the turkey is eaten its time to turn our attention to the New Year. What was once a distant blip on the calendar is now here. Once again we are resolved that this year will be …

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 …

If you’ve paid a visit to the National Mall in Washington DC this October you may have noticed some puzzling patterns covering a large area between the Washington Monument and the Lincoln Memorial. At ground level the markings were discernible as patterns but they lacked any overall coherence. They were …