Templates in Workflow represent blueprints for business processes in your organization. Templates string together a sequence of tasks, approvals, or automated steps, that can later be started as a running workflow. Only a Workflow owner can create, change, or start a workflow from a template.
You use templates as a blueprint for a workflow. Once a Workflow owner creates a template, it can be reused as many times as necessary and they can adjust individual elements of the template with every iteration of the workflow.
If you define a business process within your company as a sequence of tasks, then you create a template to re-run those tasks periodically, and complete these processes. For example, you can create a template that drives your organization's annual operations planning (AOP), once a year, or you can create a template to handle sales representatives' escalations any time they happen.
Templates consist of two or more back-to-back tasks, and can include: page tasks, group tasks, machine tasks, hierarchy tasks, and decision tasks.