● ● System Engineering Business or product domain World view Domain of interest Domain view System element Element view Detailed view
System Engineering Business or product domain World view Domain view Element view Detailed view Domain of interest System element
● ● System Engineering System engineering hierarchy 。 The world view (WV)is composed of a set of domain (Di) which can be system or system of systems in its own right. WV={D1,D2,D3,.,Dn} Each domain is composed of specific element (Ej)each of which serves some role in accomplishing the objective and goals of the domain or component. Di=E1,E2,E3,...,Em} Each element is implemented by specifying the technical componets (Ck)that achieve the necessary i function for an element. Ej={C1,C2,C3,....Ck) ● ●
System Engineering System engineering hierarchy • The world view (WV) is composed of a set of domain (Di), which can be system or system of systems in its own right. WV = {D1, D2, D3, …, Dn} • Each domain is composed of specific element (Ej) each of which serves some role in accomplishing the objective and goals of the domain or component. Di = {E1, E2, E3, …, Em} • Each element is implemented by specifying the technical componets (Ck) that achieve the necessary function for an element. Ej = {C1, C2, C3, …, Ck}
● ● System Engineering ·System Modeling ·System Simulations ●
System Engineering • System Modeling • System Simulations
● System Engineering System engineering is a modeling process: Define the processes that serve the needs of the view under consideration. Represent the behavior of the processes and the assumptions on which the behavior is based. 。 Explicitly define both exogenous and endogenous input to the model. 。 Represent all linkages (including output)that will enable the engineer to better understand the view
System Engineering System engineering is a modeling process: • Define the processes that serve the needs of the view under consideration. • Represent the behavior of the processes and the assumptions on which the behavior is based. • Explicitly define both exogenous and endogenous input to the model. • Represent all linkages (including output) that will enable the engineer to better understand the view
System Engineering To construct a system model,the engineer should consider a number of restraining factors: ·Assumptions 。 Simplifications 。 Limitations Constraints ·Preferences ● ● ●
System Engineering To construct a system model, the engineer should consider a number of restraining factors: • Assumptions • Simplifications • Limitations • Constraints • Preferences