Control flow elements

Control flow elements control the flow of data through a workflow. They can be found in the Control Flow folder of the Add Elements wizard (figure 14.46).

Image workflow_control_elements-genomics
Figure 14.46: Control flow elements are found under the Control Flow folder in the Add Elements wizard.

There are two general types of control flow elements:

  1. Those used to control how data is grouped for analysis. These include Iterate and Collect and Distribute elements, described in Iterate and Collect and Distribute elements.
  2. Those used to control the path that data takes through a workflow based on aspects of the data. These are referred to as branching elements and are described in Branching elements.