System Layer
Logical Structure
Logical Structure
  Contents

PDF version   PostScript version

Business Layer

The business modules have been presented having two roles: client application, and server component. It is however important to note that this client-server dichotomy represents only a particular case. The general case is that both roles are symmetric and dynamically interchangeable--involving two instances of the model shown. This simplification is however maintained in the context of the demonstration application, presented in Appendix A.