togaf architecture principles

, the most common is the business sub-Library, the different business databases deployed on different physical servers.(8) The architecture of level eight Web sites: using NoSQL and search engines to provide better support for scalable distributed features, the application server accesses a variety of data through a unified data access module, alleviating the hassle of application management of many data sources.(9) Level nine Web site

the same result, that is, the service is idempotent. Service idempotent is sometimes natural, such as setting the user's gender as a male, regardless of how many times it is set, the result is the same, but for operations such as transfer transactions, the problem becomes complex and requires information such as transaction numbers. For service invocation validation, only valid actions can continue. Study Note 6: The core Principles and

statement resource file, you can set the HTTP header Cache-control and expired properties, slow the presence of the browser1.3.1.3 Enable compression: Compression can have a certain amount of pressure on the server and the browser1.3.1.4 CSS on the top of the page, JS placed at the bottom of the page1.3.1.5 reduce cookie transmission, consider using a separate domain name for static resources1.3.2 CDN Acceleration1.3.3 Reverse Proxy1.3.4 Application Server Performance optimization1.3.4.1 Distri

First, website attack and defense Attack: 1. XSS attack: Dangerous character escapes, HttpOnly 2. Injection attack: Parameter binding 3, CSRF (cross-site request forgery): Token, verification code, Referer Check 4. Other vulnerability attacks Error Code HTML annotations File Upload Path traversal Defense: 1. Web Application firewall: modsecurity 2. Website security vulnerability Scan Second, information encryption technolo

Opening and closing principle OCP (Open for extension,closed for modification). The core idea of open and close principle is that an object is opened to expansion and closed to modification. In fact, the opening and closing principle means that changes to the class are made by adding code rather than altering the existing code. In other words, once the software developer writes out the code that can be run, it should not change it, but to ensure that it can continue to run, how to do this? Th

the compilation phase, Complete the code implantation before compilation, and ensure that the embedded code can be compiled. For more information about piab, see the piab series enterlib piab deep analysis by artech. Vi. Summary in this Chapter This chapter describes in detail how to implement the specifications and principles of software design. The focus is separated by object-oriented and object-oriented programming, and the

background. Furthermore, if customers can discover and BIND available services, the IT systems behind these services can provide greater flexibility.However, to achieve a strong and flexible architecture, a new method is required, which is a daunting task. Enterprise Architecture designers must be "Service-Oriented Architecture designers", not only understanding

MySQL performance tuning and Architecture Design-Chapter 1 Basic Principles of scalable design, mysql Tuning Chapter 1 Basic Principles of scalable design Preface: With the rapid increase of information, the development of hardware equipment has gradually become unable to keep up with the application system's requirements for processing capabilities. How can we s

12th principles of extensible designPreface:With the rapid increase of information, the development of hardware equipment has been slowly unable to keep up with the application system to the processing capacity requirements. At this point, how can we solve the performance requirements of the system? There is only one way to improve the system's scalability by transforming the architecture of the system, by