Problem
1. Discuss model representations that would be appropriate for several distnctly different kinds of systems. Also discuss how graphical representations might he imple-mented for each system.
9 For a logic-circuit modeling application, such as that in give a detailed graphical description of the standard logic symbols to be used in constructing a display of a tirctiit.
2. Develop a modeling package for electrical design that will allow a user to position electrical symbols within a circuit network. Only translations need be applied to place an instant e of one of the electrical menu shapes into the network. Once a component has been placed in the network, it is to be connected to other specified components with straight line segments.