Distributed Object Models, Mobile Computing and Electronic Commerce.

This paper presents an overview of the Models, Programming Paradigms and Software Tools needed for an integrated network (wired and wireless) computing environment that can support electronic Commerce. In particular we consider the role of various interactive distributed computing models (client server-CS, code on demand -COD, remote evaluation- REV, and mobile agents - MA, and three-tier system- TTS), different logical modes of programming (Imperative, declarative, subjunctive and abductive), transaction and workflow models (that relax atomicity, consistency, isolation, duarbility and serializability properties), new protocols and software tools (PJava/JDBC/CORBA products) that are needed.