, similar service sets, and similar component sets as a whole. The command processor mode processes the management and protocol of user commands, while the view handler mode describes how to manage the view in a software system.
5) communication. Patterns in this category help to form communication between components. The forwarder-receiver mode processes peer-to-peer communication, and the client-distributor-server mode describes the location of tr
1. "Open-Close" principle (OCP)Software entities shocould be open for extension, but closed for modification.It is open to extensions and closed to modifications.
2. Lishi replacement principle (LSP)Where the base class is applicable, the subclass must be applicable.
3. Dependency reversal principle (DIP)Dependency abstraction is required.
4. dummit's Law)An object should have as little understanding as possible about other objects.
5. Interface i
obtain the following knowledge, abilities, and qualities:1. Master the solid basic theories and broad professional knowledge in the software engineering field;2. Have the engineering practice ability;3. ability to analyze, design, develop and maintain software;4. Have a strong spirit of innovation .;5. independent working ability and team spirit;6. Understand laws and regulations related to intellectual pr
Software can be roughly divided into: Free Software and non-free software
Types of Free Software and non-free software.The following are some terms that are frequently mentioned when discussing free software. They explain which types overlap with others or are part of o
In the past, I have read many articles about the top ten essential tools for developing common professional software such as. NET and. Net programmers. Today, I don't want to introduce these professional software. I want to introduce some auxiliary software that is often used during development to help us complete better development.
I recommend commonly used a
period, the CS is not, other industries worse. When the economy improves, CS lead. There's a representative billionaire who says, "Software will swallow the world." human beings just develop software, let the software command the machine, all other working bots will help you. You are the mouth cannon, these rich people use their own huge amount of money
Tags: is system dependent upgrade ref Adobe Inux Director dir
Most of our Linux system is a Linux manufacturer's system, so these vendors can compile some software to provide users to download, the user after downloading can be installed directly, thus eliminating the compilation of the source code and the process of various problems. At this point we can use the appropriate software manager to ope
The first version of each software project is beautiful. The new project starts from scratch and all content is newly developed. Because of all-new development, there is no historical burden. The first version has very few bugs. Of course, programmers also try their best to do their best. This means that in the eyes of developers, the first version can be regarded as perfect: the code is beautiful, the design is good, and the
1. Project Design
The dominant idea of project design can be understood as two types: full design and simple design.
Full Design refers to investigating various aspects of the software before writing specific code, analyzing detailed requirements, and compiling all development documents, after all the procedures are designed, write the code again. In other words, after all the plans are completed, we can see the final view and start the war again. Thi
The factors that determine the maintainability of the software are:1) comprehensible 2) testability 3) modifiable 4) Portability 5) reusabilityWhat measures should be taken:1) Improved accessibility: Modular • Detailed design documentation • Structured design • Documentation within the program and good high-level programming language2) Improved testability: Good documentation is essential for diagnostics and testing, and
During software development, I often encounter this problem: "When a software function is implemented, the business personnel say one set, and the software personnel say one set ". Here, we can find out a pair of friends who are both conflicting and dependent on business and software. What the business personnel and
1. An error occurred in the Software Center when I deployed the software before. (I have no problem with the configuration)
650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M01/4D/0E/wKioL1RJ9DiDXYC5AAPVOD6oVpE212.jpg "Title =" 1.jpg" alt = "wkiol14259didxyc5aapvod6ovpe212.jpg"/> error message: there is no space for downloading software. The download si
[Soft engineer Video] software, software engineering, and engineering video Software Engineering
I am now learning about the soft engineer video and summarize what is the origin of software and software engineering.
Seeing this figure, the blur of "
The structure diagram proposed by Yourdon is another powerful tool for software structure design. A structure diagram is similar to a hierarchy diagram, and is also a graphical tool for describing software structures, in which a box represents a module with the name or main function of the module; the arrow (or line) between the boxes represents the calling relationship of the module. Because the formula is
17. Software evaluation development and evaluator 17.1 the work principle of the surveyorFor software testers, the tasks and objectives are as follows:(1) The basic goal of software testers is to find bugs, which is the first condition for testing.(2) The purpose of software testing is to verify requirements,
ScienceIt refers to the data structure and algorithm, Computing Theory-Theoretical Level
TechnologyIt mainly includes: programming languages, operating systems, and other specific technologies-Technical Level
EngineeringIncluding: software architecture, development documentation, project management, various tests, etc-Management Layer
Quotations:
Software a
How does win10 uninstall software win10 Delete software programs and how does win10 Delete software?
Baidu knows that there are still software that does not know how to uninstall and install on Windows 10. Although the interface functions of Windows 10 have changed a lot, there are still several methods to uninstall
It took me two nights to finish reading "software technology", which should be a non-technical computer book that I once again applauded after "programmer's Cultivation". Although it was just a waste of time, however, the problem solved my doubts. Software Engineering emphasizes the process of software development, while soft
, restart, run
multiplatform platform for pure Web application, after the background modification, the end user refreshes the page to complete the deployment, do not need any business interruption, to ensure that the business system 7x24 hours available.
Safety
Based on the large risk of ActiveX security
The use of industry-standard EMACSCRIPT/W3C and other international norms, all procedures are operating in the sandbox, complete security procedures.
F
The following is a speech by Dr. Yan Hong in a csdn discussion on Architecture and Framework concepts. It is very helpful for us to understand these two concepts!
"Architecture: ArchitectureFramework: Framework
The large-scale architecture of software is architecture. A
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