Key Points
- Design patterns are solutions to common object-oriented design dilemmas.
- Design patterns are divided into three categories: creational, behavioral, and structural.
- Creational patterns abstract the instantiation process.
- Behavioral patterns are concerned with algorithms and the assignment of responsibilities between objects.
- Structural patterns are concerned with how classes and objects are combined to form larger structures.
- A common association is illustrated by connecting objects with a thin line.
- Composition is a relationship among objects that share a similar lifeline.
- Aggregation is a whole made up of independent parts.
- Class diagrams, sequential diagrams, and interaction diagrams can be used to design collaborations.
- UML stands ...
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