1. An interactive manual system of a device, comprising: a model package database storing: a set of at least one of phrases and sentences; an object file that includes data objects that include information regarding an appearance of, and spatial characteristics of, a plurality of structures of the device and that include data representing visual displays that are associated with the structures of the device; and a grammar table that identifies associations between (a) the information and data and (b) respective ones of the set of the at least one of phrases and sentences; and a processor configured to execute: a speech engine module for converting an utterance into a word sequence, determining the word sequence's meaning, which is associated with one or more of the set of the at least one of phrases and sentences, and identifying a grammar category to which the word sequence as a whole conforms; and a dialog manager module for extracting a subset of the information regarding the appearance of, and spatial characteristics of, the one or more structures of the device; and an output arrangement configured to output what has been extracted; wherein the extraction is based on the identified grammar category, the one or more of the set of the at least one of phrases and sentences to which the determined meaning of the word sequence corresponds, and the associations of the grammar table, such that the extraction includes collecting from the data objects a plurality of data objects that concern a particular one of the structures of the device associated by the grammar table with the one or more of the set of the at least one of phrases and sentences that are associated with the determined meaning of the word sequence, different ones of the data objects that concern the particular structure being included as part of the collected plurality of data objects depending on the category to which the processor has identified the word sequence as a whole conforms.