There are also three kinds of steps that are available with the N1 Service Provisioning System software.
Steps that can be called only from within a component. This category is further divided into steps that can only be called from install blocks, and steps that can only be called from uninstall blocks..
Steps that can be called only from a plan. This category is further divided into steps that can be called only from composite plans, and steps that can be called only from simple plans.
Steps that can be called from either a plan or a component.