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A software architecture is a structured element with a certain form, that is, a set of components, including processing components, data components, and connection components. Architecture issues include the overall organization and global control, communication protocols, synchronization, and data access, assigning specific functions to design elements, and the
E-commerce site comparison of commonly used cache policy framework, e-commerce site architecture Cache is an important component in distributed system, which mainly solves the performance problem of hot data access in high concurrency and big data scenarios. Provides fast, high-performance data access. This time, it is easy to understand how to share the schema of a caching strategy that I think is more co
c/S structure, that is, client/server (client/server) structure, is well-known software system architecture, through the rational allocation of tasks to the client side and server side, reduce the communication overhead of the system, can make full use of the advantages of both ends of the hardware environment. Early software systems
Concurrency Mode Two models designed to share resources among multiple threads or processes: · The Active Object design mode separates method execution from method calls. The purpose is to enhance concurrency and simplify synchronous access to objects residing in the control thread. · The monitor Object Design Pattern synchronizes the execution of Concurrent methods to ensure that there is only one method running within the object at the same time. It also allows the execution sequence of
The soul of Software architecture systemOne, The Software Architect is the master designer of the system. Two, the architect's job responsibilities is in a software project development process, the customer needs Convert to a normative development plan and text, and develop the overall
services in the form of a report server. At this time, this Web report tool works in a way similar to products such as crystal report, it has the same advantages and disadvantages as an independent server (the independent server here refers to the logic, and can still be physically installed together with other servers ). For Java applications, the report software can be embedded into the J2EE application archite
Abstract: Lao Tzu's philosophy, morality, software philosophy, and software reference: top ten programming rules for eliminating human wolf software in sequence SAGE:Kong de's only path is from. The path is "thing", but "nothing. Which has an image. There is something in it. Some of them are excellent. Its essence is very real, and there is a letter in it. Since
We talked about the underlying core OS in the iOS software architecture, and the core service layer of the iOS system, on top of the kernel OS layer, consists of two parts: Core service libraries and advanced features based on core services. This article makes a detailed explanation of these two functions.First, the core services layer contains the following libraries:1. Address Book FrameworkFor Address Bo
Complex software must have a clear and reasonable architecture, otherwise it cannot be developed and maintained.MVC (Model-view-controller) is one of the most common software architectures and is widely used in the industry. It's easy to understand, but it's not easy to tell the difference between the derived MVP and t
sent from all the gateways to internal external references. Internal applications include data engines and main interfaces. External applications include risk control management, CTA policies, algorithm transactions, and other applications. In the application, vyy has designed an application engine to drive various strategy groups and provide services to them. At the same time, the main engine of vyy provides interfaces such as subscription, delegation, withdrawal, and database operations to in
The beginning of the architecture design determines the survival of the software products. "A good beginning equals half success." The initial architectural design is also the most difficult, the need to investigate the situation of similar products and technical characteristics, to understand the current world of this product can provide theoretical support and technical platform support. Combined with th
Red Hat embraces 64-bit ARM architecture and encourages Linux software development AMD Opteron A1100 Series developer kit with 64-bit ARM processors and Red Hat Linux environments released in July 30, Red Hat) on the same day, the "ARM Partner Early Access Program" was announced to assist the industry in designing a 64-bit ARM architecture including the Red Hat
Building maintainable Software-java article keep Architecture components Balanced Building Encapsulation boundaries is a crucial skill in software architecture.-george H. Fairbanks in Just enough Architectureguideline:? Balance the number and relative size of top-level components in your code.? Do the- organizing sourc
Software Architecture Design Series (3): How to Become a .netenterprise instructor .zip Lecture content: Enterprise Architects lead programmers and other technical personnel to complete information system engineering like generals who direct soldiers on the battlefield. He must have a strategic vision and thinking, and have high-level technical decision-making and system
several different units for Independent Computing. It provides problem-solving knowledge. The knowledge source responds to changes on the blackboard and only modifies the blackboard. The blackboard is a global database that contains all the states of the domain to be resolved. It is the only medium for knowledge sources to interact with each other. The knowledge source response is controlled by changes in the blackboard status. The blackboard is usually use
Architecture | design | project The beginning of the architecture design determines the survival of the software products. "A good beginning equals half success." The initial architectural design is also the most difficult, the need to investigate the situation of similar products and technical characteristics, to understand the current world of this product can
-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
, let's talk about this. Next, I remember that I used to take this course in college: software demand analysis and design. The instructor defined the requirement to know what the user needs! Finally, let's talk about the document's problems. "Software Engineering" emphasizes that there are documents step by step. I personally understand the role of this documen
functions like modifying pencil words, and quickly adapt to new requirements of the system like variables, this system is a very adaptive system for changes. What are the benefits of a system that is highly adaptable to changes? Let's take an example. When I was writing with a pen, the teacher always asked me to write it in a square lattice. There was no typo, no mistake, or a mistake. If it was wrong, I had to rewrite the whole page. If the wrong word is written in the first line, the rewritin
, and developers will benefit from this lightweight protocol. Rest is a kind of software architecture style, not protocol and nonstandard, it is a kind of development method for network application, which can reduce the complexity of development and improve the scalability of the system. SOAP: Simple Object Access Protocol (PROTOCOL) is a standardized communication specification that is
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