This is Step 3,of Systems Design of the SDLC. The product produced by this step is a set of specifications for the hardware, software, people, network, data resources and the information products that will satisfy the functional requirements of the proposed system within a business functional area (e.g. in this case, inventory tracking, and/or manufacturing, etc.)
How do I address specifications for input, processing, output, storage and control.
How do I determine which hard/software I am suppose to use?