Design Patterns
A design pattern is a documented best practice or core of a solution that has been applied successfully in multiple environments to solve a problem that recurs in a specific set of situations.
Architect Christopher Alexander describes a pattern as “a recurring solution to a common problem in a given context and system of forces.”
- The term context refers to the set of conditions/situations in which a given pattern is applicable.
- The term system of forces refers to the set of constraints that occur in the specific context.
Design patterns are not theoretical constructs. A design pattern can be seen as an encapsulation of a reusable solution that has been applied successfully to solve a common design problem.
Though design patterns refer to the best known ways of solving problems, not all best practices in problem resolution are considered as patterns. A best practice must satisfy the Rule of Three to be treated as a design pattern.
Design patterns do not provide solutions to every problem found in real-world software design and development. Design patterns are about providing elegant, reusable solutions to commonly encountered software development problems in a particular context.
Môn học Design Patterns
Study guide: download
Slides:
1. Software Architecture into, Design Patterns intro and UML intro;
2. Basic Patterns;
3. Creational Patterns;
4. Collectional Patterns;
5. Structural Patterns;
6. Behavioral Patterns;
Examples:
Exercises:
Lab reports:
1. Lab report 1: Đọc hiểu ví dụ “Online Shopping UML Examples” sau đó viết lại bằng Việt ngữ, vẽ lại 1 số mô hình trong ví dụ này. Hạn chót nộp bài: 11/06/2011.
Assignments:
