bauhaus design principles

Object-oriented design principle principle objective object-oriented design original table single Responsibility principle case Closed-closing principle case dependence reversal principle caseObject-Oriented design principlesFor the design of object-oriented software system, it is a very important problem to improve th

1. Definition In short, the definition of the merging/aggregation reuse principle is: Use synthesis and aggregation as much as possible, and do not use inheritance as much as possible. 2. Meaning Why "we should try to use synthesis and aggregation instead of inheritance? This is because: First, inheritance reuse destroys the packaging. It exposes the implementation details of the parent class to the subclass, which violates the principle of information hiding;Second, if the parent class ch

doesn't answer the fundamental object-oriented question-Why do we use object-oriented objects. How should we use the three mechanisms to achieve "good object-oriented". What kind of object-oriented principles should we follow? Any serious object-oriented programmer, such as a C # programmer, needs to systematically learn object-oriented knowledge and object-oriented knowledge from programming languages and not be competent for object-oriented

Design principles (7 types): There are so many principles that guide us in the design and development of our programs because there is an unknown change in our program. In order to embrace this unknown change at the lowest cost, our predecessors summed up so many principles.

Let's take a look at how the Blog table described in mongodb: varBlogSchemenewdb. schema ({title: String, desc: String, author: String, body: String, tags: [String], count: {type: Number, default: 0 }, hidde... Let's take a look at the description of the Blog table in mongodb:Var BlogScheme = new db. Schema ({Title: String,Desc: String,Author: String,Body: String,Tags: [String],Count: {type: Number, default: 0 },Hidden: {type: Boolean, default: false },Date: {type: Date, default: Date. now },

using inheritance to provide an object's behavior can result in:1, the code in multiple subclasses repeat 2, it is difficult to know all the ducks all the behavior 3, the operation of the behavior is not easy to change 4, the change will reaching, causing the other ducks do not want to changeDesign principles 1：find out where changes may be needed in your application, separate them, and don't mix with code that doesn't need to change. Note: Take the c

design, but the concept of "average law" should be applied to product design, user experience, and information architecture-almost any other field of design. Let's take a look at the product design and mobile-first design ideas. Starting from the perspective of mobile devic

9 principles of GUI Design (article 3) and 3 of gui Design 9 Basic Principle 7: transfer information, not just dataBasic Principle 8: The design should meet the response needsBasic Principle 9: discover an error through a user trial and fix it 7) Principle 7: transfer information, not just dataThe computer promises a

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 precipitation of the business, accumulate some design ideas or extract the common points of the multi-project, red

interface separation principle: (1) The interface should be as small as possible: it is mainly used to ensure that an interface serves only one submodule or business logic. (2) High interface cohesion: High interface cohesion is highly dependent on the internal environment and is isolated as much as possible. That is, the methods declared in an interface are related to a submodule and are required by this submodule. (3) the interface design is limite

Nine Design principles of Material Design After Google released the new operating system "L Developer Preview", it also released the visual language Material Design. Its Design Aesthetics will be integrated into all Google's platforms, including Chrome OS and web pages, it

Guide: The difference between excellent design and excellent design is relatively small. The average person may not be able to explain the specific differences of the outstanding design, but they can find their favorite web design works. By contrasting a few excellent works, I have summed up a few details of the distin

not a successful website. 04 Fast Download Nothing is more bad than spending a lot of time downloading pages. As an experience, a standard Web page should be less than 60K and take 30 seconds to load through a 56K modem. Some designers say web pages should be loaded in 15 seconds. 05 Website Upgrades Always pay attention to the operation of the website. Well-performing hosts may run slowly as the number of visitors increases. However, if you don't want to lose your visitors, be sure to plan you

Become a senior architect first to understand the design pattern, before understanding, to understand the design principles, the original I ate this loss, a long time to someone asked me design principles, I am a dazed, not only design