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Specification class diagram

Definitions

Following are definitions of types not shown in the class diagram:

Boolean

A two-valued type representing binary conditions, with possible values being "true" and "false"

Integer

A type representing integers - may include negative numbers

String

A type representing sequences of zero or more letters, digits, symbols, and whitespace

Set

A type representing an unordered collection of objects - no duplicates allowed

Dept

An abstract type representing EWU departments as identified in the course catalog, e.g. "CSCD" or "CPLA"

DayOfWeek

An abstract type representing days of the week

TimeOfDay

An abstract type representing times of the day

Campus

An abstract type representing an EWU campus (Cheney or SIRTI

TeachingLevel

An abstract type representing an instructor's teaching level (e.g. graduate instructor, professor, etc.)

Class diagram

This diagram is in UML with one invention for clarity: the application used cannot draw "bridges" (to indicate non-intersection of crossing lines), so "solder points" (borrowed from circuit diagrams) are used to indicate intersections.

Last updated: Sun May 18, 2003