Minutes of the meeting of the 'Adaptive Design Patterns for Real-time Systems'
group held on June 13, 2001.

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The main aspect of this meeting was Dr. Chung's proposal for hierarchical arrangement of patterns along the conventional methods of:
1) Classification or Instantiation
2) Generalization or Specialization
3) Decomposition or Aggregation

The three methods are explained below using examples.

Classification or Instantiation:

Class Bunglow
{
. . .
. . .
}

VAR: a,b,c : Bunglow ;

Here a, b, and c are instances of 'Bunglow'. They are 3 different Bunglows.

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Generalization or Specialization:

Class House
{
. . .
. . .
}

Class Bunglow inherits House
{
. . .
. . .
}

Class Igloo inherits House
{
. . .
. . .
}

Bunglow and Igloo are 'Specializations' of House. They contain all the features of a house with some possible additions.

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Decomposition or Aggregation:

Class Wall
{
. . .
. . .
}

Class Door
{
. . .
. . .
}

Class Window
{
. . .
. . .
}

Class House
{
VAR:
w : Wall;
d : Door;
o : Window;

. . .
. . .
}

House is an 'Aggregation' of a Door, Wall and Window. A house is made up of walls, doors, and windows in addition to some other features.