A uniform component modeling space

ion and levels of abstraction are important concepts in the modeling space, but the terms are rarely used in this paper. The reason is that four kinds of abstraction are part of the modeling space, corresponding A UNIFORM COMPONENT MODELING SPACE Informatica 25 (2001) 475-482 477 to the three dimensions plus views. Instead of using the general ‘abstraction’ term, each kind is discussed in its own context. Each dimension has a range of levels of its kind of abstraction. A brief example will illustrate the modeling space separation of concerns. Suppose we design and build a financial system for First National Bank (see Figure 2). The system interacts with customers in setting up and using accounts, and sends certain reports to the Federal Reserve Bank (FRB) on a periodic basis. The system consists of hardware, software, and manual operations performed by customer service representatives. The software portion of the system consists of customer management and account management. Account management is composed of two parts: accounts and account transfers. In the course of developing this system, we specialize the party management facility defined by OMG for our customer management need, and then as we move into implementation, we find and incorporate a customer management component that satisfies our requirements for that part of the system. We develop the account management part, but when we are done, we decide this is a general capability that multiple banking systems could use. We generalize account management and make it available as a component with accompanying specification. First National Bank Financial System