1. What is a three-tier architecture? 1. Concepts
A three-tier architecture generally divides the entire business application into a presentation layer (UI) and a business logic layer (BLL) data access layer (DAL ). The purpose of hierarchy differentiation is the idea of "h
What is a relational database? Oracle database architecture, Oracle cluster introduction, and oracle Architecture
What is a relational database?
Databases based on Relational Models.
What
Patterns and frameworks are everywhere in software design. A friend once asked me what is the mode? I am also studying and give the following summary about my learning experience. (Note: personal opinions are for reference only. please correct me .)
1. What is the mode?
What if win10 software is incompatible and cannot be opened? win10 software is incompatible.
With the widespread use of win10, it is inevitable that you will encounter incompatibility with the win10 system during the use process,
What is the name of the millet live software? is the white gold or black gold?
The name of the millet live software is called Black Gold Live.
Black Gold Live is a high v
platformization (PAAs): The cloud service platform provides various on-demand services such as automatic scaling, workload management, SLA management, message mechanism, cache, and build management;
New alternative data persistence models: nosql, mapreduce, base, cqrs, etc;
Standardized Code Management: such as GitHub.
All of these gave birth to the emergence of a new architecture design style-microservice ar
What is green software and How to Make It (reprinted )--
The author wrote a strong article about green software.
Definition and classification of green software
After installing the operating system, we usually need to install some commonly used
What is the general architecture of e-commerce websites based on lamp and what are the core technologies, such as Xiaomi Mall, jumei youpin and weipinhui? What are the solutions for front-end, backend php logic, data layer, and physical layer, and how to optimize them?
world .... The last mess.
Mach:
Documents are just a means of management and communication. What is really important is the management methods and development process hidden behind them.
Too much attention to the importance of documents is blind. A truly effective development process should take into account the devel
Software Architecture belongs to the scope of design, but not all designs belong to the software architecture design.
As revealed in the previous "decision School" concept of software architecture,
First, what is the C/S structure.
The C/S (Client/Server) structure is a well-known client and server structure. It is a software system architecture. It can take full advantage of the advantages of both ends of the hardware envir
Configure Server settings Server IP address1. Edit the network configuration file # Vi/etc/sysconfig/network-scripts/ifcfg-eth02. Modify the network Auto-start (Modify the contents of the file) Onboot=yesVI command, I edit, move cursor, modify No to Yes, press ESC, enter WQ, save and exit.3. Restart the network server # Service Network Restart4. View native IP address, currently DHCP get IP Ifconfig10.0.2.15 is the native IP addressThe network configu
Label:ollydbgis a 32-bit assembly-analysis debugger with a visual interface. What makes it special is that it can solve problems without source code, and can handle problems that other compilers cannot solve. Version 1.10is the final release version. This project has been stopped and I am not going to support this software anymore. But don't worry: the newly crea
different software. You are trapped! Message-oriented middleware, data persistence layer middleware, Ajax, and so on. They are too complicated. If middleware can be provided as smaller components, more like a tool rather than a framework, it may be more attractive to us.
Soap-Related Web solutions seem to want to solve all the problems of distributed systems again.
Amazon provides soap and rest Web Services. About 30% of users use web services such
The rest architecture style is a new development style for Web applications, and is the most successful internet hypermedia Distributed System architecture in the world today, which makes people really understand the HTTP protocol's original appearance. With the rest architecture
effective, practical and high-quality software disciplines, it contains a wide range of aspects, including programming language, software development platform, software development model and many other aspects of the content. In fact, software engineering has not been very accurate definition, everyone or organizatio
Software Design: What is software design?
"Wow, design !"
Whenever you talk about this word, will your mind soon pop up with "genius", "inspiration", "creativity "...... In terms of words, some big and round black-rimmed glasses appear simultaneously, while walking up and down, and suddenly two eyes are shining, shouti
Source: http://www.uml.org.cn/c%2B%2B/200810132.asp
So far, I can still remember where I was when I had an epiphany and finally produced the following article. That was the summer of 1986. I served as a temporary consultant at the China Lake Naval Weapons Center in California. During this period, I had the honor to attend a seminar on Ada. During the discussion, an audience raised a representative question: "Are software developers engineers ?" I don'
without any need will be developed and applied. Whether humans discover and use fire, our "Four Great Inventions", or today's automotive aircraft, which is not a product of demand. It is because humans have this need that they can use their brains to create the outcome of these needs. Naturally, software cannot be "vulgar ".
For us, if we want to know20Year or
Software testing-what is a bug, software testing bugI. What is a bug?
People who have learned programming have heard of the word bug. but what exactly does a bug mean? System defects? E
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