Workflow with Kaleo

Liferay Portal includes a workflow engine called Kaleo. In Greek, this word means "called ones," which is appropriate for a workflow engine that calls users to participate in a process that has been designed for them.

Kaleo workflow allows a user to define any number of simple to complex business processes/workflows, deploy them, and manage them through a portal interface. Those processes have knowledge of users, groups, and roles. You don't have to write a single line of code to accomplish this: all you have to do is create a single XML document. And if you're a Liferay EE customer, you get a graphical workflow designer which gives you a point and click interface to create workflows.

To better understand how to use Kaleo Workflow, this chapter covers:

• Installation
• Workflow basics
• Creating workflow definitions
• How users interact with workflow
• Kaleo workflow designer

Once we're done, you should be familiar with how Liferay's Kaleo workflow is used make sure all content has been approved before it is published to your portal.