What Does a SysML Model Do? — Lesson 3

This lesson covers the concept of use case diagrams in systems engineering, focusing on a flashlight as an example. It explains the use case diagram, activity diagram, and block definition diagram, all of which are used to understand the system's purpose and its relationship with external elements. The lesson also introduces the concept of a black box view, where the internal details of the system are not shown. It further discusses the functions each element performs to achieve the system's objective. The lesson concludes with an explanation of the internal block diagram, which shows the interconnections and flows between the system and its external elements.

Lecture

Alternate video link.

Video Highlights

00:05 – Operational use case diagrams

01:14 – Understanding activity diagrams

02:26 – Explanation of top-level block diagrams

03:56 – Understanding internal block diagrams and external interfaces