| Subject | English | Italian |
| comp., MS | application definition file An XML file that fully describes a single Notification Services application. The ADF file contains the schemas for the events, subscriptions, and notifications; the rules for matching events with subscriptions; and may provide the name of the XSLT file used to format generated notifications | file di definizione dell'applicazione (ADF) |
| transp., mater.sc. | definition file | pacchetto di definizione |
| comp., MS | form definition file | file di definizione del modulo (An XML file with an .xsf extension that contains information about all other files and components used within a form, including user interface customizations, XML Schemas, views, business logic, events, and deployment settings) |
| comp., MS | Game Definition File | file GDF (A file that contains information for Games Explorer, a component of Windows Vista, in XML. The GDF defines shortcuts for presentation in the GUI, settings for parental controls, the location for saved games, and other meta-information about a game) |
| comp., MS | Office compatibility definition file | file di definizione della compatibilità di Office (A file that stores information about compatibility issues and workarounds and makes it available to the Office Telemetry Log and Office Telemetry Dashboard) |
| comp., MS | package definition file | file di definizione del pacchetto (An ASCII text file that contains predefined software distribution objects, such as programs and packages to be used for software deployment) |
| comp., MS | service definition file | file di definizione del servizio (The file that determines the service model, such as the roles that comprise a service, optional local storage resources, configuration settings, and certificates for SSL endpoints) |
| comp., MS | service definition file | file di definizione del servizio, *.csdef (The file that defines the service model for the application, which includes the roles that comprise a hosted service, the service endpoints, configuration settings, and certificates for SSL endpoints. The service model cannot be changed once the service is deployed and running) |
| IT, el. | shelf definition file | documentazione di descrizione di scaffale |
| comp., MS | skin definition file | file di definizione interfaccia personalizzata (An XML document that specifies the elements in a skin, along with their relationships and functionality. A skin definition file has a .wms file name extension) |