The four tutorial scenarios simulate one building block of a project known as a work package (work package 1 in the screen shot below) with six tasks.
Work package 1 consists of tasks related to the management of the project (task A), tasks related to software development and testing (tasks B, and C) and tasks related to hardware development and testing (tasks D, E, and F). Each task has an identification number; for example task A is task number 1 and task F is task number 6.
There are precedence relations between some tasks as outlined in the following table (see Figure 2):