There are two types of service items included in the catalog; portal service items, which correspond to landing pages within the AIR Bundle, and templates, which you can clone to create new service items within Remedy.
Portal service items directly correspond to jsp pages within the bundle. These service items generally do not contain any questions or elements and are designated with the type "portal". The bundle will use these files to generate pages such as the category listing page or the submitted requests page. These pages are usually associated with a specific package in the bundle.