ideo principles of design

objectwhen the user performs a certain action, the dynamic effect is a very useful feedback mechanism. Through the appropriate use of the dynamic effect, users can clearly perceive their own operation feedback, let users know what they have done. 4. ReliefEase user perception of application processing speedwhen an application performs a lengthy operation, it can use the action to mitigate the user's perception of time, and even create a fake action effect (in fact, the application does not ha

[Principle of separation of duties] Separation of duties principle refers to the design should take into account the production of data, the use of aggregation principles, each system to do their own things, each system only to do their own things. Which system a data table should be placed on, usually depends on several points: 1. Who produces this information: usually who produces this data should be resp

that the structure of the program is starting to become loose. Any change to the input or output device will force you to re-organize the condition judgment of the while loop. But after all, your program can work normally. But now you have reached the bottom line. If a hateful customer breaks your design by changing the demand, you will leave immediately. You made up your mind. Your crash ...... Unfortunately, it didn't take two weeks. You did

As we all know, design principles are the cornerstone of design patterns. When the design principles are followed, the written code becomes very flexible and can cope with changes and be easier to maintain. Of course, it is not so absolute. Next, we will briefly introduce so

Article Description: Interactive Design Analysis: The main points of design principles. When we started the design of a project , there must be countless ideas in mind. is to do the visual impact of strong, grabbing the eye of the gorgeous style? Or is it a retro collage wind? Or is the most in the minimal

Principles of design patterns1. "Open-Close" principle-the module should be open for extension, but should be closed for modification.2. Rys replacement principle-if the parent class is called, the replacement of the Child class can be completely run. The Li's replacement principle is a basis for inheritance and reuse.3. Merging Reuse Principle-less inheritance and more synthesis relationships are required.

priority design, the case is mainly for picture design, but the concept of "average law" should be applied to product design, user experience, information architecture--almost any other area of design. Let's look at product design and mobile priority

both the order table and the Order record table, the order table read and write frequently, and the order record table for the management, read and write general) 7, Configuration table, log table, scheduled task table, etc. 8. Summary table Design (Multi-Table association queries will be slow, but also easy to get stuck in the case, you can consider a summary of the business, record to the summary table)Fourth step in optimization designAfter the pr

Summary: This text is divided into two parts. The first part: basic knowledge of design pattern; Part Two: The six principles in software design, and analyzes the principle of single responsibility in detail. (the timeline reference for this article: \java design mode (time series diagram) for Notes Support fo

cause changes in the interface. Visible view changes visible view is the interface provided to customers, such as JSP programs, swing interface, and so on, this part of the change in general can cause a ripple effect. The basic path of a project should be this: project development, refactoring, testing, commissioning, operation, the reconstruction of which can modify the original design and code, operation and maintenance to minimize the original cod

, a class that only does something specific, not everything.Design principles in the GRASP model craig Larman in applying UML and Patterns The concept of grasp design pattern is presented in the book. gof design mode is a workaround for a specific problem Span style= " font-family: ' microsoft yahei '; font-size:14pt; ">grasp is the point of view of object-

functionality. 22. Bridge mode: Separates the abstract part from its realization, so that they can change independently. 23, Flyweight, enjoy meta mode In fact, there are two types: concurrency mode and thread pool mode. Use a picture to describe it as a whole: The six principles of design pattern General principle: Opening and closing principle (Open Close Principle) The open and closed principle is to

which rely on abstract classes.B. Abstract classes should not be dependent on implementation details, and implementation details should be dependent on abstraction.This principle overturns some people's understanding of object-oriented programming, such as: both the upper and lower layers should rely on the same abstraction."Onlookers" design mode (3)-Dependency inversion principle (dip,dependence inversion Principle)4 Interface Isolation principleTh

-oriented Analysis Ooa, object-oriented design Ood, object-oriented programming oop, object-oriented programming oop, object-oriented testing ootObject-oriented Basic principles: (1) abstract abstraction (2) package Encapsulation (3) module modularity (4) Hierarchical hierarchySeveral basic concepts of object-oriented: Object, class, interface interface, polymorphic polymorphism, inheritance inheritance, Cl

Today, I attended the course "C # object-oriented design patterns (1): Object-oriented Design Patterns and Principles. Summarized some notes.First, we will introduce what is the design pattern: the design pattern describes a general solution to a common problem in the softwa

30-minute understanding of Object-Oriented Design Principles Many people have read the design patterns, but Martin does not have much estimation on the object-oriented design principles (For details, refer to Agile Software Development: