Lesson plan
Creational pattern
A creational pattern is a software design pattern for creating objects in a manner suitable to a particular situation. As object creation that is otherwise available (i.e. via the programming language) can sometimes result in design limitations, a custom mechanism for creation can provide for better design. A creational pattern aims to separate a system from how its objects are created, composed, and represented. They increase the system's flexibility in terms of the what, who, how, and when of object creation. A creational pattern encapsulates two main aspects. One is encapsulating knowledge about which concrete classes the system uses. Another is hiding how instances of these concrete classes are created and combined. Creational design patterns are categorized into object-creational patterns and class-creational patterns. Object-creational patterns defer part of its object creation to another object, while class-creational patterns defer its object creation to subclasses.
Article summary
A creational pattern is a software design pattern for creating objects in a manner suitable to a particular situation. As object creation that is otherwise available (i.e. via the programming language) can sometimes result in design limitations, a custom mechanism for creation can provide for better design. A creational pattern aims to separate a system from how its objects are created, composed, and represented. They increase the system's flexibility in terms of the what, who, how, and when of object creation. A creational pattern encapsulates two main aspects. One is encapsulating knowledge about which concrete classes the system uses. Another is hiding how instances of these concrete classes are created and combined. Creational design patterns are categorized into object-creational patterns and class-creational patterns. Object-creational patterns defer part of its object creation to another object, while class-creational patterns defer its object creation to subclasses.
Key claims
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.