Building and maintaining an accurate and up-to-date inventory of applications deployed throughout an organization are described. In one aspect, an application directory facilitates automated and standardized entry of information on an application. The application directory provides a series of browser-rendered interfaces that collects data about the application. These different types of data are organized according to a logical data model that defines multiple hierarchical levels of data types and relationships amongst the hierarchical levels. The collection of registered applications forms an inventory that may be used to manage these assets. In another aspect, the application directory allows authorized users to manage the inventory of applications.