O'Reilly logo

Complete Systems Analysis: The Workbook, the Textbook, the Answers by Tom DeMarco, James Robertson, Suzanne Robertson

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

4.3. Solutions: Data Models

Exercise: The Barbican Data Model

The data model that we derived from the user’s statement and from the sample documents is shown in Figure 4.3.1.

Image

Figure 4.3.1: Data model for the Barbican Centre exercise.

A partial data dictionary to accompany the data model is this:

Booking = Booking Date + Booking Price Paid + Booking Discount Amount

Discount Qualification = * Data element *[“School Child” | “Senior ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required