Software domain The software domain elements are used to describe the presentation and operation of a software program. cmdnameA command name is the name of a software command.filepathA file path is the location of a resource, such as the system path and file name of a file on a storage device.msgblockA message block is a multi-line message or set of messages that is produced by an application or device.msgnumA message number is the identifier of a message that is produced by an application or program.msgphA message phrase is the text of a message that is produced by an application or program.systemoutputSystem output is content that a computer or device generates in response to a command or situation.userinputUser input is text that a user enters, such as a response to an application or system prompt.varnameA variable name is a placeholder for content that might change based on how something is used, such as a variable supplied to a software application or a user-defined path in a command.Parent topic: Domain specializations