WWW based computation services: transfer of power system applications to the WWW

This paper describes the necessary software engineering and development steps to transfer a "legacy" power system application, i.e. an ASCII input file and output file based program without user interactions, to the World Wide Web (WWW). An optimal power flow (OPF) program is used as an example of such a "legacy" application. The paper describes development efforts on the WWW-client and on the WWW-server side. Also, a discussion of changes to an existing OPF code is given. The paper discusses the complexity of development efforts together with advantages and disadvantages of the presented approach both for the WWW-OPF developer and the WWW-OPF user.