1. A business model, or requirements model, .

1. describes business functions that an information system must support
2. describes data structures and design
3. portrays the design and protocols of telecommunications links
4. portrays system logic and processes that programmers use

2. Structured analysis, based on a detailed plan, is called a(n) approach.
   1. process-centered
   2. systems life cycle
   3. object-oriented
   4. predictive

3. The starting point for most systems projects is a(n) . A: strategic plan

B: critical breakdown C: objective chart

D: systems request

4. When planning an information system, a company must consider how a new system will interface with older systems, which are called .

1. enterprise applications

2. network operating systems (NOS)
3. operating applications

4. legacy systems