The illustration of a script is shown in the form of a flow chart made up of blocks and their links. A script always begins with the block “Start rule”, contains the block “Call disconnected”, and ends with the blocks “Rule skipped” (only for rules) and “Rule executed”. These default blocks cannot be deleted. In this chapter, you will learn how to add other optional blocks and links.

The general structure of an individual block is described in detail in The General Structure of a Block. In addition, this chapter introduces the different types of blocks and takes a closer look at the properties and differences between default blocks and optional blocks.