togaf architecture

1, three-tier architecture The three-tier architecture of the three-tier architecture (3-tier application) is to divide the entire business application into the presentation layer (UI), the Business Logic layer (BLL), the data Access Layer (DAL). The purpose of distinguishing hierarchy is to think of "high cohesion, low coupling". 1, the performance layer (UI): P

1, b/s structure: where B represents browser (browser), S represents server (server), S/b architecture is browser/server architecture. A simple schematic diagram of B/s architecture: In b/S architecture, HTTP protocol communication is used between the browser and the server. The advantages of B/s

the nature of the application architecture-IBM the developer's tutorials, which are comprehensive and systematic, so record and share The nature of application architecture, part 1th: Everything you need to know about modeling requirements The nature of Application architecture, part 2nd: Getting Started with design patterns The nature of Application

If you say Taoxin potter, high availability is even more important than high performance. Why?Because you optimize the performance of the system 10 times times, your boss may say: "Xiao Dong Ah, good job."However, if you are responsible for the module, Zooey will be down, hey, you know.Availability Metrics99%-----website year unavailable for less than 88 hours99.9%---website year unavailable for less than 9 hours99.99%---website year is less than 53 minutesHigh-availability architectures most In

Python three-tier architecture description, python three-tier architecture A three-tier architecture usually divides the entire business application:Presentation layer, Business Logic Layer, and Data access layer ). The purpose of differentiation is to "High Cohesion and low coupling.High Cohesion and low coupling are the concepts in software engineering, the cri

Overall Architecture Analysis of muduo library and muduo Architecture Analysis Muduo is a high-quality Reactor network library, which adopts one loop per thread + thread loop architecture. The code is concise and the logic is clear. It is a good model for learning network programming. Muduo code is divided into two parts: base, net, and base to implement some bas

Simple web layer-3 architecture system (3rd edition), web layer-3 Architecture Today is the third edition. As we did a few days ago, we still need to optimize the code. The three-tier architecture is an idea. Whether the overall system security and high performance can be ensured depends on whether the code is properly written, whether the logic is rigorous. Ye

In the previous article I talked about the front and back of the separation of some views, this view is from a macro point of view, no concrete landing to achieve, today I will continue the topic of the previous article, from the front-end of the architecture design point of view of the front-end separation of a specific implementation of the program and I originally conceived a great change, But the core idea has not changed, is the control layer bel

Large-scale Internet architectureThe general idea of solving the problem is to divide and conquer (Divide-and-conquer), divide the big problem into several small problems, conquer. In the architecture practice of large-scale Internet, this kind of thought is not reflected.Architectural goals Low cost: The value of any company exists in order to gain business benefits. If possible, expect everything to be low cost. High performance: Site p

Introduced:There are a lot of explanations on JPDA (Java Platform Debugger Architecture) online, for example. I do not repeat the invention of the wheel, this set of articles mainly from the practice of code Analysis, carefully analyze the characteristics of the platform, and some of the problems clarified and misunderstanding.Practice:If we look at JPDA from the functionality of Java Remote Debug and use the socket's communication, the whole process

After reading there is a book, should have a harvest, have a summary, recently the "large Web site Technology architecture" a book to read, give the impression is profound, coupled with the book on the reverse proxy and load balancing and session independent storage and caching, so the book seems to be quite easy to understand, And the author Hae gives the impression (book) is also quite profound, I have learned a lot from this book, understand many,

terms of architecture, my point is that since open source is used, don't be afraid to change the source code if you encounter any problems. We must not stay at the users of the framework. It is not so difficult to customize the framework or even contribute code to the author. Design Level: Concept of separation of duties Although we all know the CSS style, JS behavior, and HTML structure. I personally think that only HTML is necessary. That is to sa

-end display page; C and controller, the control layer is mainly used to accept the front-end page data, according to different data calls different business models in the background, at the same time, the data processed by the business model should also be sent to the Controller, and the Controller should be assigned to the corresponding front-end page; m and model, the model layer is responsible for operating the business model. The MVC concept is well expressed: With the development of t

Problem operation: 1. Click "ASP. NET configuration" in Solution Explorer to enter the membership user role configuration. If the configuration fails, the following error is reported; 2. An error is reported when the static method of membership is called; Error: "system. Web. Security. sqlmembershipprovider" requires a database architecture compatible with architecture version 1. However, the current data

Android concurrent programming: (1) Basic knowledge-Architecture and components, android Architecture All content in this section is original. If you need to reprint it, please indicate the source. Http://blog.csdn.net/manoel/article/details/38462631Preface I haven't written a blog for a long time. I am afraid of mistakes due to my limited level, I feel that I have nothing to write, and I am looking for a

Myspace.com has 65 million subscribers and is one of the fastest growing websites on the Internet, with 260,000 new users registered every day. It is often accused of performance problems, and MySpace has to deal with problems that are rarely encountered by other websites, either large or small. How did they do it?Site: http://myspace.comSite: http://myspace.com Platform• ASP. NET 2.0• Windows• IIS• SQL Server Internal running status?• MySpace processes 1.5 billion page views every day and proce

Tags: mcollective architecture puppet push puppet Architecture Zero-basic learning puppet automated configuration management documents1 mcollective Introduction Mcollective is a framework for server orchestration and parallel execution systems. First, mcollective is a system management solution that provides programmable control over Server clusters. At this point, it features similar functions: func, fabri

http://blog.csdn.net/chaofanwei/article/details/26865169After reading there is a book, should have a harvest, have a summary, recently the "large Web site Technology architecture" a book to read, give the impression is profound, coupled with the book on the reverse proxy and load balancing and session independent storage and caching, so the book seems to be quite easy to understand, And the author Hae gives the impression (book) is also quite profound

Summary: Development tools 1.Eclipse IDE: Using MAVEN project management, modular. 2. Code generation: Through the interface mode simple configuration, automatically generate the corresponding code, currently includes three ways to generate (add and revise): Single table, one-to-many, tree structure. After the generated code, if you do not need to pay attention to the degree of beauty, after the build can be used. Technology selection (only part of the technology) 1, backend service framework: D

Spring cloud itself provides a lot of components, but we need to follow the business model to customize the enterprise needs of the common architecture, then we need to consider what technology to use now?Below I have made the following technical summary for the spring Cloud Micro-service distributed cloud architecture, hoping to help you:View:H5, Vue.js, Spring Tag, React, AngularJsSpring boot/spring Cloud