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Person

R1:Ownership

Dog

{Static_Attribute_Label |

Static_Link_Label

Return_Parameter}

Owner

Dog

{A} Pet

L1:Ownership(R1)

Behavior_Method =>

[Partition_Path] Method_Name [Design_Status]

Behavior_Class =>

Class [Design_Status]

Method Box Syntax

Example

Behavior_Method

Wash Car

[Behavior_Class ]*

Car

APPENDIX B: IDEF4 GLOSSARY

Application Domain

The domain the application is being designed for (i.e., the

end users).

Attribute

An implementation choice on how to represent an

object’s state.

Behavior Diagram

Defines relations between similar behavior.

Behavior Model

Defines the relations between the similar behaviors of

objects.

Behavior Specification

Specification for the signature and internal

implementation of a method.

Class

A description of a group of objects with common

behavior, relationships, and semantics.

Client/Server Relationship

The dynamic relationship between an object that sends a

message (client) and an object that receives it (server) and

acts on it.

Design Artifact

Items used in the design.

Design Domain

The domain in which the design is performed.

Design Method

A heuristic guide to thinking that applies a certain

philosophy of design (Design Methodology).

Design Methodology

A philosophy of design (see also Design Method).

Design Rationale

Provides a top-down representation of the system, giving

Component

a broad view that encompasses the three design models

and documents the rationale for major design evolutions.

Domain

Scope of the system being developed.

Dynamic Model

Specifies the communication between objects and the

state transitions of objects.

Encapsulation

The act of imbedding features in objects.

Event

A signal generated by a method in an object indicating

some condition in the object.

Feature

A catch-all category for concepts that the engineer wants

to capture in the software design.

Function

An operation that returns a value and has no side effects.

Implementation Domain

The environment and language in which the design is

implemented and the environment in which the

implementation executes.

Inheritance

An object-oriented mechanism for sharing attributes and

methods between objects.

Inheritance Diagram

Illustrates the subclass/superclass relation between

classes.

Instance

An object described by a class.

Link

The association formed by a referential attribute

imbedded in one class whose domain is another class.

Link Diagram

A diagram depicting links between objects.

Link Instance

The association formed by a referential attribute of one

instance pointing to another instance.

Message

A token sent from one object to another to requesting an

action.

Method

An implementation of behavior, such as a set of

instructions for the object to perform some operation, or a

procedure contained in an object.

Object Class

A description of a group of objects with common

behavior, relationships, and semantics.

Object Instance

An object described by a class.

Object Life Cycles

The pattern of behavior that an object exhibits from

creation to deletion.

Partitions

A partition object contains objects and relations.

Polymorphism

The property of an operation to behave differently on

different objects.

Procedure

An operation that returns no value and has side effects.

Relation

An association between objects.

Relation Diagram

A diagram depicting relations between objects.

State

The values of the attributes of an object at a particular

time.

State Diagram

A diagram depicting transitions between states.

Static Model

Defines time-invariant relations between objects, such as

ownership and inheritance. The static model is described

using inheritance, relation, and link diagrams.

SubClass

Grouping particular instances of a class into an even more

specialized class.

SuperClass

The class from which a subclass is derived.