1. A document construction system including files containing data and instructions, wherein data forms at least a logical stream of data and wherein logical streams of data ate provided to output means comprising: means for providing a plurality of referents wherein at least a referent refers to a logical stream of data; means for providing a plurality of different referent scopes with which referents are associated and used and outside of which referents within a scope are inaccessible; means for inserting at least a referent into the logical stream of data and within a referent scope from the plurality of referent scopes; means for resolving logical streams of data referred to by referents within a referent scope, wherein resolving of a referent scope from the plurality of referent scopes results in an unresolved logical stream of data absent an error condition; and means for providing to an output means a resolved logical stream of data, the resolved logical stream of data forming a constructed document.
1. A document construction system including files containing data and instructions, wherein data forms at least a logical stream of data and wherein logical streams of data ate provided to output means comprising: means for providing a plurality of referents wherein at least a referent refers to a logical stream of data; means for providing a plurality of different referent scopes with which referents are associated and used and outside of which referents within a scope are inaccessible; means for inserting at least a referent into the logical stream of data and within a referent scope from the plurality of referent scopes; means for resolving logical streams of data referred to by referents within a referent scope, wherein resolving of a referent scope from the plurality of referent scopes results in an unresolved logical stream of data absent an error condition; and means for providing to an output means a resolved logical stream of data, the resolved logical stream of data forming a constructed document. 2. A document construction system as defined in claim 1 further comprising means for queuing parts of a logical stream related to a referent scopes.