Determine the Other System Design Issue
- How to realise subsystems; through hardware or software?
- How is object model mapped on chosen hardware software?
- Mapping objects onto hardware: memory, processor, I/O.
- Mapping associations on networks: Connectivity.
Much of difficulty of designing a system comes from fulfilling restriction imposed by software and hardware constraints. This may also include cases where certain throughput has to be guaranteed for the system and where certain response time has to be certain.