Basic REAL Model Construction

question 31

Essay

Basic REAL model construction.
Draw the REAL model components, including cardinalities, indicated by each of the following independent situations.
a. One or more flight attendants supervise the boarding process for many passengers on an airplane.
b. One photographer uses a digital camera to take pictures of several students in a single elementary school class.
c. A group of friends order various menu items at a local restaurant; the group is assigned one table server.

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Definitions:

Ferns

Non-flowering vascular plants that reproduce via spores and have fronds, part of the Pteridophyta division.

Vascular Plants

Plants that have specialized tissues for transporting water and nutrients throughout the organism, including ferns, conifers, and flowering plants.

Phylum

A phylum is a classification level in biological taxonomy that is below kingdom and above class, used to group together organisms that share a basic body plan.

Rhyniophyta

An extinct group of early vascular plants from the Silurian and Devonian periods.