Identifying Key Components

After analyzing business and functional requirements (see Chapter 2), the initial step in modeling an ISP architecture is to identify key components.

In general, key components are uniform among most designs; at the minimum, there should be ISP services running within an operating environment on an operating platform. As shown in FIGURE 3-1, the core of this model consists of ISP services, operating environment, and operating platform.

Tip

The differences in a design are typically in the selection of services, an operating environment, and the operating platform, all of which are based on business requirements and preferences.

ISP Services

ISP services are usually categorized into four types: basic services, value-added ...

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