A Design and Implementation Exercise

JMU

A Design and Implementation Exercise
in Java

Prof. David Bernstein
James Madison University

Computer Science Department

bernstdh@jmu.edu

Motivation

Review:
- Recall that we considered different ways of implementing checklists
Now:
- We want to design and implement a more robust system for determining if a set of complicated requirements has been satisfied
Examples:
- Graduation requirements
- Legal/contractual requirements
- Medical requirements

User Needs - Encapsulating Requirements

Satisfaction Criterion:
- Must be very flexible
Individual Requirements:
- Must be able to use the system in a wide variety of contexts
Combining Requirements:
- Must be able to combine requirements using "and" and/or "or"
- Need not worry about "\(m\) of \(n\)" situations for now

User Needs - Satisfying Requirements

Basics:
- Must be able to determine if an item satisfies a requirement
"Double" Counting:
- One item can satisfy multiple requirements

User Needs - A Prototype

The Context:
- Graduation requirements
Types of Criteria to Include:
- Complete a course with a minimum grade
- Complete a course in a particular department