soa principles of service design

Ways to implement some design patterns in thinkphpFirst, let's look at the six principles that the design pattern follows1. Single Responsibility Principle(1) Definition: Do not have more than one cause of class changes. In layman's terms, a class is responsible for only one responsibility.(2) The advantages of following a single responsibility are:Can reduce the

Content Overview What are the six design principles of one, single responsibility principle two, the Richter substitution principle three, the dependence inversion principle four, the interface isolation principle Five, the Dimitri Law six, the open closure principle content elaboration one, the single responsibility principleSingle principle of responsibility: The English name is Responsiblity Principle, a

, comprehensively and completely analyzing system security vulnerabilities and security threats, and evaluating and detecting (including simulated attacks) are necessary prerequisites for the design of information security systems. The primary purpose of the security mechanism and security service design is to prevent the most common attack means, and the fundame

PHP design patterns-six principles. PHP design patterns-six principles code that follows the six principles is generally considered to be scalable and reusable: These six principles should be followed by any object-oriented langua

evolving towards a more complex and large-scale direction. Database is the core of the entire system. Its design is directly related to the efficiency of system execution and system stability. Therefore, in software system development, database design should follow the necessary database Paradigm Theory to reduce redundancy and ensure data integrity and correctness. Only by designing a proper database mode

correlation between functions, changing one of them, and possibly aborting another, a new round of tests is needed to avoid the possible problems, which is time consuming and laborious. Example:Create a new Rectangle class that contains two methods, one for drawing rectangles on the screen, and a method for calculating the area of the rectangle.The Rectangle class violates the SRP principle. The Rectangle class has two responsibilities, and if one of these changes, it affects two application ch

asynchronous as much as possible, so that smooth expansion can be made) 6. Remove the service dependency principle: the impact of other services in the same IDC on the system, isolation and overload protection of third-party calls to system interfaces, and dependency on third-party services Monitoring and security protection principles. VII. Flexible availability principle; (The gray-scale experience in

page. There is also a content area used to display the XHTML page (excluding the title), and the area containing one or more soft key text. The number of soft keys depends on the mobile device type. 2. Basic principles for designing excellent sitesThe introduction of xhtml mp and CSS creates a variety of new user interface structures. Xhtml mp contains more elements than WML. With CSS, you can modify the visual display of elements in multiple ways.

Before discussing the nlayerapp project, let's first learn (or repeat) the hierarchical/multi-layer architecture and application system design principles. Many of my friends will think that these are old-fashioned content. As long as they are software practitioners, they will be very familiar with this content. But is that true? I will sort out this part here. On the one hand, it will lay the foundation for

As computer technology is increasingly widely used in various fields of the national economy, while computer hardware is constantly miniaturization, application systems are evolving towards a more complex and large-scale direction. Database is the core of the entire system. Its design is directly related to the efficiency of system execution and system stability. Therefore, in software system development, database

Document directory (1) Single-Resposibility Principle and interface-segregation principle) Single Responsibility Principle Interface isolation principle (2) principle of open-closed principle and principle of dependency inversion (dependecy-inversion principle) Open and closed Principle Dependency inversion (3) liskov replacement principle (liskov-substituion principle) We often talk about three main characteristics of object-oriented: encapsulation, inheritance, and polymorphism. T

Designing a good rest-style API is very difficult! The API is the contract between the service provider and the consumer, and breaking the contract will bring a lot of trouble to the server developers, the trouble comes from the developers who use the API, because changes to the API will cause their mobile app to not work. A good document can do a lot of work to solve these things, but most programmers don't like to write documents.If you want to make

As computer technology is increasingly widely used in various fields of the national economy, while computer hardware is constantly miniaturization, application systems are evolving towards a more complex and large-scale direction. Database is the core of the entire system. Its design is directly related to the efficiency of system execution and system stability. Therefore, in software system development, database

At present, computer technology has been widely used in various fields of the national economy. While computer hardware is constantly miniaturization, application systems are gradually becoming more complicated and larger. Database is the core of the entire system. Its design is directly related to the efficiency of system execution and system stability. Therefore, in software system development, database design