O'Reilly logo

Agile Principles, Patterns, and Practices in C# by Robert C. Martin, Micah Martin

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

15. State Diagrams

image

Angela Brooks

UML has a rich set of notations for describing finite state machines (FSMs). In this chapter, we’ll look at the most useful bits of that notation. FSMs are an enormously useful tool for writing all kinds of software. I use them for GUIs, communication protocols, and any other type of event-based system. Unfortunately, I find that too many developers are unfamiliar with the concepts of FSMs and are therefore missing many opportunities to simplify. I’ll do my small part to correct that in this chapter.

The Basics

Figure 15-1 shows a simple state transition diagram (STD) that describes an FSM that controls the way ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required