The EP Web Part Request table is used to record all information about your Web Part Request templates and your Web Part Requests.
A Web Part Request defines the format of the Web Part, the data that it will present, the basic properties of the data and the control elements that will be used for interaction and to navigate between Web Parts. Each of your Web Part Requests is based on a Web Part Request template. This also means that you can create different Web Part Requests for different user groups but based on the same Web template. These Web Part Requests will make up your Employee Portal.
A template can be used in any Employee Portal group, whereas a Web Part request belongs to one Employee Portal group and can only be used with that group.