Systems Engineering
System engineering can best be explained as coordinating multiple tasks within the two disciplines of engineering and engineering management. This paper highlights the systems method of coordinated tasks and its relevance concerning current and future business system life cycles: concept, design, planning, testing, optimization, and deployment. It defines the boundaries necessary for a robust life cycle and analysis to occur.
4. Requirements Types
4.16 Scalability
This is the ability of the system to change in size either by scaling the size of a unit, or by installing more units. There is always a limit to scaling imposed by some physical constraint. If the system can be scaled to meet the full demand for it without reaching scaling limits, it can be said to be scalable. Modularity is a related parameter, concerned with how separate the elements of the system are, and how easy it is to replace them with other elements of the same or different types. Instances of modularity can be horizontal - at the same level of a system, or vertical, as in the layers of the Internet Protocol stack.