software architecture in practice second edition

"Disclaimer: Copyright, welcome reprint, please do not use for commercial purposes. Contact mailbox: feixiaoxing @163.com "Recently seldom write blog, mainly because they have been looking at the school of wheat things, learning more time. Wheat College is an online video learning website, mainly about it development related content, interested students can pay attention to. Another site I think is a good one is geek college. Of course, these are off-topic.A few days ago, just a former colleague

The object-oriented design phase includes architecture design, detailed design, user interface design and database design. Design activities are divided into system design and detailed design. Design principles are modular (large system decomposition into a number of small systems), coupling degree (the degree of association between two subsystems, the lower the coupling the better), cohesion (the degree of correlation within the subsystem, the higher

understand complexity. To face complexity, we can only be simple. Picasso, a painter, once said that painting is a process of subtraction, And the painting has "Subtraction design can be a creative way to look at the world driven by design. Simplicity can satisfy the natural desires of people who want to solve the mysteries and pursue the correct finish ." For example, smart city design is complex. vertical orientation is divided into upper layer, middle layer, and

Difficulties in designing motion control system software architecture: 1. The customer's requirements are constantly increasing according to actual needs. Due to the needs of industrial production, the demand is constantly raised, and the domestic motion control system software started late, is still in constant exploration, in more cases, the development is ba

,easy and straightforward to complete...①User StorySelection of design patterns;Domain ModelorTransaction Script. ② User Story in the Entity with the Value Object the design. ③ User Story test case latitude and the design of the test data. A "scene tree"; an extremely simple and lightweight practice that enables developers to integrate requirements analysis, architecture (

Message subscription and delivery are designed on the "platform-Application of plug-ins in Software Architecture Design 1.First, describe what is "Platform-Plug-in software design. As the name implies, "platform-plug-in" is to first establish a platform to provide underlying basic services. Based on this platform, in subsequent development, the platform is d

The AIX operating system can install packages that include RPM and INSTALLP formats. The INSTALLP is an AIX system-specific package format that provides a powerful management capability, but it also contains a number of confusing concepts (such as fileset, package, LPP, etc.), Many experienced system administrators still often fail to understand their meanings and interrelationships correctly. By discussing the basic concepts and internal mechanism of some AIX INSTALLP

Design the software architecture using the 4 + 1 View of RUP Wen Yu Wenyu@china.com ), Loosely coupled space website technical consultant Wen . Architect, technical consultant, founder of the loosely coupled space website. He is good at object-oriented, architecture and framework design, and has in-depth research on design patterns, UML, RUP, and

A genius programmer, his energy and brain is limited, not in a short period of time to build a large system like office, this is the emergence of software engineering, to help many programmers work together to transform the program into software.Code-level software engineering, I would like to mainly include these aspects: Readability of code Schema of the Code Maintainability of cod

= Integer.parseint (tmpnumber[0]); 163 denominator = Integer.parseint (tmpnumber[1]); 164} else {//integers are the same as direct numerator denominator 165 numerator = integer.parseint (fraction); 166 denominator = numerator;167 }168 }169 5. To do this, you may ask:Why do you want to implement it in the Java language? Wouldn't it be easier to implement using the Python language?A: Well, Python implementations are really simpler, but the last thing we need to do is to implement

, learning time overflow, there is a negative study time situation.Description: Many factors determine software performance, such as hardware problems (hardware configuration), network problems (insufficient network bandwidth), program architecture design issues (a large number of business operations on the same table), connection configuration issues (WebLogic connection pool configuration problems)-- What

-14, with little meaning.7. Do not pay attention to the details:The preliminary design should not pay attention to details. For example1. Only the object name is identified for each object, and its properties and methods are not recognized.2. "Current Account Pin user interface", which may be a dialog box, Web interface, character terminal interface, but the robust diagram does not care about these details.3. Are entity objects such as "customer data" required to be persisted? Do not care, more

in the shortest time, whether using Photoshop or standard design, you can submit it to the user. There is a saying "A picture is worth a thousand words". For a user, he will not care about your internal implementation structure. In his opinion, the interface isProgramInterface completion, basically means that the entire project is almost completed. Therefore, I highly recommend a sentence called"CodeNot moved, the interface goes first ". The fastest way to say, below is the best. What is the

Web Web Software Architecture Principles First, the directory structure is clear, should not be too deep, complex, the path is best with relative addressSecond, the naming appropriateThird, constant variable content, interface to make the template betterFour, the common public Information unified storageFive, include files can not be embedded moreSix, the directory can not store too many content filesSeven,

PerformanceFor users, programmers are delivering software, providing a refreshing user interface, and avoiding system crashes is often more important than the performance of the program.There is a loose relationship between performance and code speed. This kind of work is a bit forgotten how if you're just focusing on how fast your code is running. In particular, be careful about giving up other functional areas to make your code run faster. If the sp