What are different available workflow components In Salesforce ?

Workflow consists of the following components:
– Workflow Rules – trigger criteria for performing various workflow actions
– Workflow Tasks – action that assigns a task to a targeted user
– Workflow Email Alerts – action that sends an email to targeted recipients
– Workflow Field Updates – action that updates the value of a field automatically
– Workflow Outbound Messages – action that sends a secure configurable API message (in XML format) to a designated listener (not covered in this class)