A hierarchy is an organisational structure of stored data that has several levels arranged in a tree-like structure, consisting of parent-child relationships. This ordering structure offers fast and easy access to data. It is often inflexible, as the parent-child relationship is restricted to one-to-many, only allowing for one parent segment of children. However, the Grouptree framework allows a many-to-many capability where an asset can exist in more than one location.
A hostname (sometimes called a sitename) is the unique name of a network-attached device (such as a computer) on a network. To trace another computer, its host name must either display in the host file or be known by a DNS server. For most Windows-based computers, the host name is the same as the computer name. On the Internet, the terms "hostname" and "domain name" are often used synonymously, despite slight technical differences.
HREF (Hypertext Reference) is a link attribute in HTML, which carries the URL and thereby specifies the address of the destination with a URI. Typically clicking on an HREF will cause the browser to navigate to the URL specified.
Hypertext Transfer Protocol (HTTP) is the principal application-level protocol used by the World Wide Web. HTTP is a client-server, request-response, generic and stateless protocol. All communication takes place over a TCP connection. Via HTTP, resources are identified using Uniform Resource Locators (URLs).