Summary

Well, you have now completed this chapter and learned about not one but two simple yet useful diagrams. You learned the syntax to create pie chart diagrams in Mermaid. You know that adding a title to a pie chart is optional and can be skipped if you are only interested in the pie chart part of the diagram. You now have the knowledge to control and override the color of each section of a pie chart. You also understand what a requirement diagram is and why it is used. You learned the syntax to define the different types of requirements and elements in a diagram. Also, now you know the different types of relationships that exist in a requirement diagram, and how to define them in Mermaid.

You also learned how to use the requirement diagram-specific theme variables to customize the styling of a diagram. Having learned all about these two diagrams, we will now introduce you to the Entity Relationship diagram in the next chapter.