Table of Contents
What is the use of design patterns?
Design patterns provide general solutions, documented in a format that doesn’t require specifics tied to a particular problem. In addition, patterns allow developers to communicate using well-known, well understood names for software interactions.
How design patterns help redesign?
Design patterns help you define interfaces by identifying their key elements and the kinds of data that get sent across an interface. Design patterns also specify relationships between interfaces.
What are the benefits of having design pattern?
Design patterns help you write code faster by providing a clearer picture of how you are implementing the design. Design patterns encourage code reuse and accommodate change by supplying well-tested mechanisms for delegation and composition, and other non-inheritance based reuse techniques.
What is the motivation behind using the Command design pattern?
The main motivation for using the Command pattern is that the executor of the command does not need to know anything at all about what the command is, what context information it needs on or what it does. All of that is encapsulated in the command.
Why would you use grasp patterns when designing a system using object-oriented design?
GRASP, or general responsibility assignment software principles, help guide object-oriented design by clearly outlining who does what: which object or class is responsible for what action or role. GRASP also helps us define how classes work with one another.
What is the effect of pattern in design?
Repetition works with pattern to make the artwork seem active. The repetition of elements of design creates unity within the artwork. Patterns often occur in nature, and artists use similar repeated motifs to create pattern in their work. Pattern increases visual excitement by enriching surface interest.