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Introduction
This article describes how to use agileeas. net agile development platform for the development of the pharmacy system, first we need to design the system architecture of the pharmacy system according to the requirements document, in order to continue the subsequent development work, the whole
After the architecture is properly managed, t
, through which the system receives the user's request or instruction, and then the instruction is digested and absorbed, then the next layer is called, and the result of the call is presented to this layer. The presentation layer should be frivolous and should not have business logic.
The business layer is the core business processing layer of the system, responsible for receiving the instruction and data of the presentation layer, digesting and absorbing, carrying out the process of organizin
enter the online gaming industry for server design;Persons engaged in online game server design;Technical Director of the online game project.
Because the design of online game servers involves too much content, such as network communication, AI, and database design, this a
standard three-layer structure, as shown in Figure three:
Figure Three: Architecture of PetShop 2.0
We can see from the diagram that there is no obvious data access layer design. While this design improves the performance of data access, it also leads to confusion in the responsibilities of the business logic layer and data access. Once the requested
to enter the online gaming industry for server design;Persons engaged in online game server design;Technical Director of the online game project. Because the design of online game servers involves too much content, such as network communication, AI, and database design, th
What is information architecture?
We know that when designing an information architecture for a web site or application system, the most important thing is to design the following four parts:
1. Organization Systems)
2. navigationsystems)
3. Search Systems)
4. labeling systems)
These four systems represent how information is organized, how information is browsed,
"evolved."Cloud Database Schema DirectionCloud Database architecture is the key point of its ability to carry out the "cloud" of application architectures, and with the development of technology and business, the architecture of cloud database has several major development
previous project, but it is necessary to raise it here.
A) generally, when we develop a project, the data source is often a database. You just need to directly operate the database, but you have to consider the following: if our project does not have its own database and our data source is from another company or service interface, what should we do? As the ar
be so good. There are many platforms that support hierarchical technology, including the mainstream J2EE and. NET. Different vendors have different requirements on development platforms. The cost of a multi-layer architecture implemented using the layered technology is much higher than that of a common CS architecture.
This leads to a very practical problem-not all software is suitable for Stratified techn
to hundreds of thousands of concurrent, like the yellow pipe, but there are some modules like the red pipe in the picture, only hundreds of times in a second, so that seriously slow down the performance of the server, became a bottleneck.
Real-world development may sometimes need to add database modules, such as MySQL, although MySQL claims to handle hundreds of thousands of of the query is no problem, but it is only computational power.
The server
Software Architecture OverviewSoftware architecture is a certain form of structured elements, that is, a collection of components, including processing components, data components and connection components. The processing component is responsible for processing the data, the data component is the information that is processed, and the connecting component connects the different parts of the
are ready to enter the online gaming industry for server design;Persons engaged in online game server design;Technical Director of the online game project.
Because the design of online game servers involves too much content, such as network communication, AI, and database design
This article aims to describe the decision-making process of the architecture design by analyzing the case of the architecture design process of the highway network toll operation management platform in a province.1. Business background
Highways in a province are divided into nearly road sections. Different road sectio
The knowledge of software architecture is designed to solve the practical problems of software design, reuse, quality and maintenance at a higher level.
I. Overview(i) The importance of software architecture1. Platform for the exchange of project-related people
2. Early design decisions1) Explicit constraints on the implementation of the system2) predict the qual
)
Direct operation of the database, in response to the addition of data delete modify search; Provide data services specifically for the business logic layer or presentation layer.
Specialized in database operation, regardless of data legality. Database error returned-1, logic error returned 0, and told the cause of the error, successfully returned 1
to the shopping cart, and so on. If database access is involved, the data access layer is called.
Presentation Layer: it is the UI part of the system and is responsible for user interaction with the entire system. In this layer, the ideal state should not include the business logic of the system. The logic code in the presentation layer is only related to the interface elements. In petshop, ASP. NET is used for
Micro-ServiceA software architecture is a system organization that contains a variety of organizations, including Web servers, application servers, databases, storage, and communication layers, which have relationships with each other or with the environment. The goal of the system architecture is to address stakeholder concerns. Conway ' s law:organizations which desi
Understanding RESTful Architecture RESTful API Design GuideUnderstanding the RESTful architectureMore and more people are beginning to realize that the website is software, and it is a new kind of software.This "Internet Software" uses the client/server model, which is built on the distributed system and communicates with the Internet, which has the characteristics of high latency (hi latency) and high conc
logic for processing applications. The data Layer is divided into two layers: Integration Layer and Resource Layer ). The resource layer is not a concern of J2EE. It may be a database or other old systems. The integration layer is an important layer, including transaction processing and database ing systems.
Instance
The organizational structure of this chapter is different from the previous model. Let's
Label:MySQL performance tuning and architecture design--1th chapter MySQL Basic introductionPreface:As one of the most popular open source database software, MySQL database software has been widely known. But in order to take care of the readers who are not familiar with MySQL, this chapter will make a brief introducti
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