Understanding Requirements - Requirements Engineering and Management for Software Development Projects - page 18

Fig. 2.3 Product construction consideration requirements

space etc.) but also the time of end users, bandwidth on the network, backup
storage and so on. The product should minimize the time expected to be spent
by the users, perhaps, by reducing the needed key strokes and mouse clicks.
The functionality specification that is focused on efficiency of resource usage
comes

under this category. Standards, guidelines, ancillary functionality

requirements provide these requirements.
4. Reusability—The product ought to be built is such a way that its components
can be used in other products. Automobile industry implements this concept
diligently. The same engine is used in multiple models. Components like a
steering wheel, brakes, tires, shafts etc. are used without any change in many
models. The dictum ''There is no point in re-inventing the wheel'' seems to