What is Harness:
Harness Defines The Apperiance and Processing Of a Work Object Forms Used In Your Application.
=>Harness Rules are Instances of "Rule-Html-Harness"class And they are Part Of User Interface Category
=>There are Four Types Of Haness In Prpc
1.New:It Contains Create Button And New Harness Is Responsiable For Creating a Work Object
2.Perform: Perform Harness Contains Submit Button
3.Confirm: It Is Read Only Formats Just Display's Conformation Message
4.Review: It Contains a Review Button and It's Read-Only Harness