togaf architecture

to determine whether the user has logged on, it is unreasonable to use the user name in the clear code, if you change the username of an administrator, does the system assume that the Administrator has logged on to the system? The solution is to save an encrypted user name, but this is also insecure, because once the encryption method is not cracked, it will still generate a huge vulnerability, therefore, the user name and password can be stored in the cookie at the same time, that is to say, t

Why does the Asp.net three-tier architecture use the n-tier architecture? Because each layer can only change a small amountCodeIt can be used on different servers physically, because the layer does not know any other layer of the application.ProgramThere are usually three layers: The presentation layer, the business layer, and the data layer. The presentation layer is used to display user interfaces, and th

Pinot architecture introduction, pinot Architecture1. High Level Architecture1. Purpose: To provide analysis services for a given dataset2. Input data: Hadoop Kafka3. Indexing Technology: to provide fast queries, Pinot uses column-based storage and various indexing technologies (bitmap, inverted index) 2. Data Flow2.1 Hadoop (Historical)1. Input data: AVRO, CSV, JSON, etc;2. Processing Process: files on HDFS are converted into indexed segments throug

Rsync architecture and rsync Architecture 1.1 rsync server configuration 1.1.1 view the server rsync version 1.1.2 after the rsync program is installed by default, the main configuration file of rsync is not automatically created and needs to be created manually. The main configuration file is "/etc/rsyncd. conf, create the file and insert the following content: 1 # Rsync server 2 # create by zhurui 18:1

Android architecture and android Architecture The figure shows that android is divided into four layers, with linux as the core and dedicated Optimization for mobile phones, providing the most basic functions of the android operating system, android runtime and libraries. Dalvik Virtual Machine (similar to JVM) is specially optimized for the android operating system. The above is the application framewor

Android system architecture, android system architecture The Android system is divided into four layers: Linux kernel, Android core library, Android Runtime Environment (Android Runtime ), Application Framework and applications. Linux Kernel) Android's core system services depend on Linux 2.6, such as security, memory management, process management, network stack, and driver model.Linux Kernel is also an

Three, in-depth rddThe Rdd itself is an abstract class with many specific implementations of subclasses: The RDD will be calculated based on partition: The default partitioner is as follows: The documentation for Hashpartitioner is described below: Another common type of partitioner is Rangepartitioner: The RDD needs to consider the memory policy in the persistence: Spark offers many storagelevel to choose from: At the same time,

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

before importing another library that causes the conflict. Of course it should be before other conflicting libraries are used, unless jquery is the last one to import.Because it is relatively simple, we have a direct code commentary:Var _jquery = window.jquery, _$ = window.$;jquery.noconflict = function (deep) { if (window.$ = = = JQuery) { window.$ = _$; } if (deep window.jquery = = = JQuery) { window.jquery = _jquery; } return jQuery;}; If we need to use both

sick half a day.Let's see how many places we need to change.1. Database2, Pojo3, DAO's configuration file4, interfaceYou may also want to modify the action and other places. And the configuration file is prone to bugs ...Anyway, I'm fed up with the days like this ...Two-tier streamlined architectureLater, after entering Hunan province, after the company framework, I reformed a 2-tier architecture using SPRINGMVC and Oracle stored procedures to implem

Understanding rest and understanding the future of the Web For web development, the Chinese version of the landmark Fielding's PhD thesis on rest has been officially released. Dr. Roy Thomas Fielding is a major designer for Web architecture standards such as HTTP, Uri, and so on. For the first time in his doctoral dissertation in 2000, he gave a systematic and comprehensive exposition of rest's architectural style and design ideas. This paper is a v

1. Stability principle The architecture is as simple and clear as possible and not overly designed. 2, attention to isolation treatment Stable business and variable business to separate processing, the core business and non-core business to separate processing, electrical business and ancillary processes to separate, application and data separation, service and implementation details separation, foreground and background separation. 3. Abstract ap

(If you feel help, please help me to recommend, add attention, thank you.) Your support is the motivation for me to keep on updating my articles. This blog will gradually launch a series of large-scale web site architecture, distributed applications, design patterns, architectural patterns and other aspects of the series of articles) Dynamic application, which is relative to the static content of the website, refers to the network application software

Article Description: Renren Mobile Development architecture. Objective Talking about the development of mobile phone operating platform first to say the development of mobile terminals, because the development of the platform can not be separated from mobile terminals, the development of mobile terminals in the last decade and the future of mobile terminals will generally be divided into the following four stages: Related Vendor Content

A30;SELECT * from V$fixed_view_definition;View data dictionary information-DictCOL table_name format A30;Col comments Format A30SELECT * from Dict;SysauxOracle 11g new default tablespace, which mainly stores data objects other than the data dictionary;acts as a secondary table space for the system, reducing the load on the system table space;Typically does not store user data and is automatically maintained internally by Oracle SystemsUNDOUndo table space for storing revocation information;When

called block, Chunk), when we divide a block interval into two, a block becomes two blocks. If you add a new Shard, MongoDB can fetch 100G data from the top of each shard and move the blocks onto the new Shard, so that the new shard gets 400G of data that needs to be moved to minimize the amount of data, only 400G. As shown in the following:Description: When adding shards in the above diagram, each shard can provide data directly to it. This is the way MongoDB allocates data, and when a block g

. Net mvc and three-tier architecture,. netmvc three-tier architecture Although they have been in contact with the two for a while, they may still be confused. Here, we do not intend to explain the difference between the two because they are both architecture models and have a certain degree of coexistence, in actual development, strict differentiation is of litt

Recently, my work has changed a little bit. I was idle in May and I was always thinking about my next direction. I also summarized my study over the past year. The in-depth architecture is the most important accumulation in the past year. From small companies to large companies, from the architecture design of small-traffic sites to the architecture design of l

I recently read a book published in. Some of the meanings of enterprise architecture and enterprise development are as follows: Professional enterprise. net Jon arking/Scott Millett ISBN: 978-0-470-44761-1 Enterprise Architecture Enterprise Architecture is typically used to describe an Agency-wide or Organization-wide framework for portraying and inconfigu

Return to index http://www.cnblogs.com/lovecindywang/archive/2012/12/23/2829828.html Design Level: Layered Architecture Layered Architecture is an important part in project design. It aims to separate responsibilities. The most classic three-tier architecture, from four to five, six layers, some people joke that the 18-tier hierarchy can be