Web part
From Wikipedia, the free encyclopedia
A Web Part is an add-on ASP.NET technology to Windows SharePoint Services. Web Parts are an integrated set of controls for creating Web sites that enable end users to modify the content, appearance, and behavior of Web pages directly from a browser.
Web Parts are ASP.NET server controls which are added to Web Part Zones on Web Part Pages by users at run time. The Web Parts control set is a group of components that work together to enable developers to create Web pages where users can modify the user interface (UI) directly from a browser. The UI controls all derive from the Part class, and they comprise the primary UI on a Web Parts page.