A page, or mashup page, is a collection of widgets and other HTML markup that can be displayed in a web browser.
A page can be a mashup application or a regular web page.
Use the catalog as a repository for your pages. To store a page in the catalog, you must upload the page or register the URL of the page in the catalog. You can also use the pages that other users store in the catalog by downloading the page. If the URL to the page is registered in the catalog, you can view the page.