Chapter 9: Illustrating Data with Pie Charts and Understanding Requirement Diagrams

A pie chart is an excellent choice of diagram when you need to display a dataset with a stark contrast between figures. It is a circular chart that represents how a numerical dataset is related, showcasing it as slices of a pie that have a size proportional to the numbers of the dataset.

A requirement diagram is a special diagram that is used in visualizing requirements in software or a system. It also highlights the relationships between requirements and other elements in the system. Requirement diagrams were first introduced under the Systems Modeling Language (SysML) specification. SysML was originally created by the SysML Partners' Open-Source Specification Project in 2003 and it served as the dialect for the Unified Modeling Language (UML) 2.0. The Mermaid syntax for a requirement diagram is heavily inspired by SysML version 1.6.

In this chapter, you will learn how to use Mermaid to...