1

Phase 3 New Century Health Clinic 1. Prepare a context diagram for New Century’s information system. ANSWER:

OFFICE STAFF

PROVIDER

AMERICAN MEDICAL ASSOCIATION

Provider Input

Daily Appointments List

0 Weekly Report

Call List

Monthly Statement

NEW CENTURY OFFICE SYSTEM

Patient Input

INSURANCE COMPANY

PATIENT

2. Prepare a diagram 0 DFD for New Century. Be sure to show numbered processes for handling appointment processing, payment and insurance processing, report processing, and records maintenance. Also, prepare lower-level DFDs for each numbered process. DFDs follow: Diagram 0 DFD Diagram 1 DFD Diagram 2 DFD Diagram 3 DFD Diagram 3.1 DFD Diagram 3.2 DFD Diagram 4 DFD 3. Create an initial entity-relationship diagram for the New Century Health Clinic system. Answers will vary depending on the logical design that students prepared during the systems analysis phase of the SDLC. Students should understand and apply the guidelines on ERDs and cardinality described in this chapter. The form of the diagram is not important — systems analysts use various styles, and each CASE tool has its own way of displaying the information. The main objective is to represent the entities and the relationships among them.