1A Framework for Low Level Analysis and Synthesis to Support High Level Authoring of Multimedia Documents

This paper describes a low level hierarchical framework for composition of multimedia documents that is designed to support the types of analysis, error checking, and synthesis techniques needed for rich user support in a high level authoring system. This framework supports flexible synchronization and flow control primitives as well as a range of interactive, continuous, and discrete media in a uniform fashion. The compositional approach taken in this work supports a style of analysis similar to the semantic analysis performed in programming language translation. This analysis capability provides a robust base upon which a number of potential high-level authoring facilities can be built