The problem of providing connectivity for a collection of applications
is largely one of data integration: the communicating parties must agree
on the syntax and semantics of the data being exchanged. The Multi
Protocol (MP) is an ongoing effort whose goal is to solve this problem in
the context of exchanging mathematical data.
In earlier papers \cite{BSG1,mp:jsc1}, it was shown that 
dictionaries of definitions for operators, functions, and symbolic 
constants can effectively solve the problem of semantic data integration.
In this paper we extend that earlier work and address the problem of
{\em syntactic} data integration. A set of solutions is proposed
that is both general, supporting a wide range of
data objects with typing information, and efficient, supporting
fast transmission and parsing.