SYSTEM ENGINEERING HIERARCHY

System engineering is a group of bottom-up and top-down techniques to navigate the hierarchy. Its procedure starts with a world view which is the entire business or product domain. As we go deep down into the hierarchy, we will get more and more details about specific sub-systems.
The beginning is a slightly more formal manner the world view (WV) is composed of a group of systems in its own right.

WV={D1,D2,D3, . . . ,Dn}

Every domain is composed of exact elements (Ej) that serve some role in accomplishing the target and objectives of the domain.

Di={E1,E2,E3, . . . ,Em}

at last each element is implemented through specifying the technical components (Ck) which achive the neccessary function for an element.

Ej={C1,C2,C3, . . . ,Ck}

In the software circumstances, a component could be a computer program a module, a reusable program component, and class or object, or even a programming language statement.

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