Hardware Software and Human Engineering

As suggested earlier, this element of systems engineering deals with detailed subsystem design in the three dimensions of hardware, software, and human. In general, deciding what should be implemented in hardware versus software is not an easy choice. Software often provides additional flexibility, but can be more difficult to manage and implement. Human engineering functions are normally relegated to those of operator and maintainer of the system, and the system requirements often specify these functions.

In general, this element refers to the design and construction of subsystems as well as the components that make up these subsystems. As with the ar-chitecting process, design choices involve the postulation of alternatives and the selection of the best alternative to satisfy the stated or derived requirements. As we move more toward the use of COTS and NDI for hardware, and reuse for software, we are able to define and choose subsystems and components more easily. This, however, is a nontrivial task and depends on the experience and design expertise of hardware, software, and human engineering personnel. A short list of some typical subsystem design areas includes:

• Power supplies

• Multiplexers

• Modulators-demodulators

• Transmitters

• Servomechanisms

• Graphical user interfaces (GUIs)

• Large-scale displays

Project Management Made Easy

Project Management Made Easy

What you need to know about… Project Management Made Easy! Project management consists of more than just a large building project and can encompass small projects as well. No matter what the size of your project, you need to have some sort of project management. How you manage your project has everything to do with its outcome.

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