JMCAD is an program for the modeling and simulation of dynamic systems. This includes the ability to construct and simulate block diagrams. The visual block diagram interface offers a simple method for constructing, modifying complex system models. The simulation engine provides fast and accurate solutions for linear, nonlinear, continuous time, discrete time, time varying and hybrid system designs. With JMCAD, users can quickly develop software or "virtual" prototypes of systems or processes to demonstrate their behavior prior to building physical prototypes. Some fetaures;

• The user builds his system model by selecting predefined blocks from a block library and simply wiring the blocks together. Each block of the diagram performs a function. Users can also create custom blocks in Java and add them to the JMCAD block library;
• JMCAD is a block diagram language for creating complex nonlinear dynamic systems. Its fast execution speed is perfect for model based operator training, off-line controller tuning, and hardware in the loop testing;
• By combining the simplicity and clarity of a block diagram interface with a high-performance mathematical engine, JMCAD provides fast and accurate solutions for linear, nonlinear, continuous time, discrete time, multi-rate, and hybrid systems;
• For specialized engineering problems, JMCAD offers a comprehensive set of companion products for frequency domain analysis, Java code generation, communications system modeling, DSP and embedded system design, neural networks and real-time analog and digital I/O.

JMCAD is developed and written completely in Java and will run in any certified Java Virtual Machine (JVM).