In this chapter, we looked at a Web-based application that uses .NET Framework technology, including ADO.NET, Web Services, and ASP.NET. This application has challenging requirements; it would be a nightmare for developers using the old technology.
As can be seen, our approach is really clean and simple. The distributed functions are implemented by a lightweight extension; no substantial changes are required to each Cell System. .NET Framework and the Internet provide the infrastructure for information exchange. All these characteristics facilitate a new paradigm for development of distributed information processing.
In our discussion, we have just dealt with very basic aspects of systems like this. There are a number of open issues yet to be addressed, including mechanisms for handling distributed transactions, an interesting topic for research and development.