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Paper代写范文-计算机软件开发中的分层技术

来源:网络整理 发布日期:2019-07-28 13:00 阅读: 作者:HotEssay 字数:14525字
文章导读:下面为大家整理一篇优秀的 Paper代写 范文- Layering technology in computer software development,供大家参考学习,这篇论文讨论了计算机软件开发中的分层技术。如今,传统的软件开发多使用单层技术,使开发软件的整体结构较为单一,且运行速度较慢,难以应对与日俱增的用户数据量,严重影响了实际的用户体验。随着单层结构技术缺陷的不断暴露,可靠灵活并且结构清晰的软件分层技...

  下面为大家整理一篇优秀的Paper代写范文- Layering technology in computer software development,供大家参考学习,这篇论文讨论了计算机软件开发中的分层技术。如今,传统的软件开发多使用单层技术,使开发软件的整体结构较为单一,且运行速度较慢,难以应对与日俱增的用户数据量,严重影响了实际的用户体验。随着单层结构技术缺陷的不断暴露,可靠灵活并且结构清晰的软件分层技术应运而生。分层技术的主要理论基础运用了计算机软件结构内部中各层次的相互关系,在计算机软件的开发过程中,对其中产生的问题进行分层处理,每层都包括对应的问题解决方案,进而形成一个垂直的逐级软件开发系统。

  以下为Paper代写范文全文,由HotEssay浩天论文网整理发布,供大家参考阅读学习之用,如有Paper代写需要,请联系网站客服。

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  With the rapid development of national economy, our country's science and technology field has also achieved good results, especially the application of computer technology is more and more extensive, at the same time, the development of computer software technology is increasingly diverse. As the traditional single-layer software system has become more and more difficult to meet the increasing practical needs of users, the application of layered technology in computer software development has become more and more common. Based on the concept and advantages of layered technology, this paper analyzes the application of layered technology in software development, and summarizes its potential development trend.

  随着国民经济的快速发展,我国科技领域也取得了良好的成绩,特别是计算机技术的应用越来越广泛,同时,计算机软件技术的发展也越来越多样化。随着传统的单层软件系统越来越难以满足用户日益增长的实际需求,分层技术在计算机软件开发中的应用越来越普遍。本文从分层技术的概念和优势出发,分析了分层技术在软件开发中的应用,总结了分层技术在软件开发中的潜在发展趋势。

  With the continuous development of computer and software technology in modern society, the actual demand of users is also increasing, so higher requirements are put forward for the structure and diversity of software development. Traditional software development mostly USES single-layer technology, which makes the overall structure of software development relatively single and the running speed relatively slow. It is difficult to cope with the increasing amount of user data, which seriously affects the actual user experience. With the continuous exposure of the technical defects of single-layer structure, the software layering technology with reliable and flexible structure comes into being. The main theoretical basis of layering technology USES the interrelationship of different levels within the structure of computer software. In the development process of computer software, the problems generated in the process of layering are processed, and each layer includes corresponding problem solutions, thus forming a vertical level-by-level software development system.

  随着现代社会计算机和软件技术的不断发展,用户的实际需求也在不断增加,对软件开发的结构和多样性提出了更高的要求。传统的软件开发大多采用单层技术,使得软件开发的总体结构相对单一,运行速度相对较慢。随着用户数据量的增加,很难应对,这严重影响了用户的实际体验。随着单层结构技术缺陷的不断暴露,出现了结构可靠、灵活的软件分层技术。分层技术的主要理论基础是利用计算机软件结构中不同层次的相互关系。在计算机软件开发过程中,对分层过程中产生的问题进行处理,每一层都包含相应的问题解决方案,从而形成一个逐级垂直的软件开发系统。

  With the continuous development of computer software development technology in recent years, software layering technology has more and more distinct advantages compared with traditional software structure, and has become one of the mainstream technologies of computer software development in the future. The application of layered technology in computer software development changes the overall development situation of software market to some extent, which is inseparable from its unique advantages.

  随着近年来计算机软件开发技术的不断发展,软件分层技术与传统的软件结构相比,具有越来越明显的优势,已成为未来计算机软件开发的主流技术之一。当然。分层技术在计算机软件开发中的应用,在一定程度上改变了软件市场的总体发展状况,这与其独特的优势密不可分。

  Layering technology advantage of specific performance in: layering technology practical problems in the software development process and user needs stratified according to the different levels of content, it is not only the developer's overall train of thought more clearly and more convenient for software running in a certain layer problems after modification and maintenance, greatly saves manpower and financial resources; In addition, the layered technology makes it possible to expand and develop the original software system, which facilitates the software system platform construction of software developers and reduces the software development cycle to a certain extent. Through the application of layered technology, developers can establish the connection between the physical hardware and the underlying structure of computer software system, making the system structure with strong dependence become more abstract, the hierarchical relationship more clear, and the complex program structure become more clear. This can not only improve the overall performance of the software system, but also make the addition and implementation of complex software functions more convenient. The use of layering technology makes the internal structure of the software system more independent and reliable when running. Just like the parallel circuit, the change of a certain level will only affect the related parts of the level, but not the other parts of the system structure, which improves the stable reliability of the operation of the software system. Moreover, layering technology makes the reuse of computer software possible, that is, the seamless connection between different software can be realized through the unified standard interface between different levels, which makes the software development have strong expansibility.

  分层技术具体性能的优势在于:分层技术在软件开发过程中的实际问题和用户需求根据不同层次的内容进行分层,这不仅是开发人员的整体思路更清晰、更方便的S软件在经过修改和维护后,在一定的层次上运行,大大节省了人力和财力资源;另外,分层技术使原有软件系统的扩展和开发成为可能,有利于软件系统平台的建设。并在一定程度上减少了软件开发周期。通过分层技术的应用,开发人员可以建立物理硬件与计算机软件系统底层结构之间的联系,使依赖性强的系统结构更加抽象,层次关系更加清晰,层次关系更加清晰。复杂的程序结构变得更加清晰。这不仅可以提高软件系统的整体性能,而且使复杂软件功能的添加和实现更加方便。分层技术的应用使软件系统的内部结构在运行时更加独立可靠。同并联电路一样,某一级的变化只会影响该级的相关部分,而不会影响系统结构的其他部分,从而提高了软件系统运行的稳定可靠性。此外,分层技术使计算机软件的重用成为可能,即通过不同层次的统一标准接口,实现不同软件之间的无缝连接,使软件开发具有较强的可扩展性。

  The rapid development of computer software technology and user needs a surge of total layering technology has been more and more widely used, through continuous technology application and renewal, layering technology also two layers from the simple technological development, gradually produced more advanced three, four layers and five layers technology such as variety of multilayer techniques, the following main stratified technology and its practical application are analyzed.

  Two-layer technology is the most simple and direct technology in multi-layer technology. Its main form can be composed of server and client. The function of the client is to provide software users with an interface for operation and use, so as to improve their actual use experience. The main role of the server is to receive the instruction message sent by the client, and carry out database operation and relevant logic processing, and finally reflect the information to the user through the client. Two layers of bidirectional sexual characteristics of technology has a simple structure, in the face of the actual number of users is small, operation time, under the condition of not high demand can solve the problem of a certain amount of data requirements, but when the surge in the number of users, the slow process of its operation, high performance and low cost disadvantage will be more obvious, and is extremely prone to problems and loopholes, seriously affecting the user's actual experience and data privacy, restrict the further application of the two layers of technology. Therefore, in the face of increasingly large data volume and more stringent requirements of users on cost and data security, the upgraded version of two-tier structure, namely three-tier technology, has been widely valued and applied.

  With the rapid increase of user data volume and demand, the defect of two-layer structure is further amplified. However, the first generation of multi-layer structure technology for the subsequent research and development of a more clear development path. Three-layer technology is based on the two-layer structure technology, through combining the actual user needs for technical improvement and development. The main structure of the three-layer technology is to add the application server as buffer between the client and the server on the basis of the two-layer technology structure, so as to realize more efficient operation of the software system. Application server's main job is responsible for originally belongs to the client in the two layers of structure working content related logic processing, in relief at the same time for the client to achieve the coordination with the client, the client can more effectively to the user's data and instructions, receiving and processing, effectively improved the user in the client's actual operation experience. It can be seen that, based on the two-layer structure, the three-layer structure of user interface, business processing and data layer is changed into the form of three endpoints. Including user interface layer is the client user instruction collection and processing, and upload the information to the business process layer user requirement analysis and send the data to the data layer request, the server will be based on user demand analysis of database information processing and the results returned to the application server, and then forwarded by the application server to the client reflected to the user, to realize the system at all levels of reasonable and effective division of labor, avoid because of the increased amount of user data and the low efficiency problem. However, although three-layer technology has significantly improved the overall performance of software operation compared with two-layer technology, it still faces prominent problems such as unreasonable use of resources in some cases. Therefore, more perfect and complete hierarchical structure technology is still one of the important requirements of computer software development.

  Under the circumstances of rapid development of computer network technology, the application in the practical use of computer software environment and data processing tasks and challenges facing become more difficult, the user demand for software has not only limited to traditional calculation and the realization of the function of simple ways, and for the realization of the function of data processing performance, diversity and convenient low-cost all aspects have more strong demand. With the continuous development of network society, three-layer structure has been unable to meet the increasing practical needs of users in terms of performance and structural characteristics. Therefore, the four-layer structure technology which is more perfect and more suitable for the development of network technology comes into being. Four layer technology is formed on the basis of the three layer structure storage layer, business logic layer, data layer and the structure of the web tier, one of the storage layer is mainly responsible for all kinds of data storage, the logical operation related the business logic layer, data layer will deal with the data integration and data processing result through the web layer to the network. In this process, the web tier will route choice according to the actual needs of users, for example, only when the user requires less structure level to realize the functional requirements, the web tier will send the information directly to the data layer, and when the user needs to multilayer structure for large amount of data processing capabilities, web layer will process and analyze data transfer to the business logic layer, thus effectively improve the accuracy of the whole software system operation and convenience. Although four layers structure due to the reason such as the difficulty of technology research and development is still in the application development period, but with four layers structure technology compared with the previous two layers and three layers technology unique characteristics such as high intelligence, the data volume and the user will be software increasing demand of the modern network society is an important technology in software development.

  The use of five layers structure than before several layered technology widely used, in some special software development environment, in order to meet the requirement of software running, will be divided into four layers structure of data layer integration layer and resource layer, namely the formation of storage layer, business logic layer, integration layer, resource layer, and web forms of five layers structure. The system components are layered by five layers technology.

  Middleware technology is a new development technology developed with the progress of computer software development technology. It is a kind of layered technology, which is mainly used in distributed software development environment at present. It can be divided into message oriented middleware, object oriented middleware and remote procedure call middleware. The application of middleware technology in software running process can realize the complementary advantages of resources between computer and various systems, and improve the stability and rapidity of software by optimizing the running connection between database, system and software. In addition, middleware technology can avoid the problems faced by software development in the distributed environment to a certain extent, which effectively improves the overall difficulty and progress of software development.

  Through the summary and analysis of the application of various layered technologies in the process of computer software development, it can be seen that with the continuous progress and development of computer software technology, as well as the increasing amount of user data and functional requirements, the traditional single-layer and two-layer software development technology has been far behind The Times. More advanced three-tier and four-tier technologies have been widely used as important technologies in software development due to their unique characteristics of high reliability, expansibility, data security, efficiency and rapidity, and will become the mainstream key technologies in this field. As a software development technology under specific environment, five-layer technology has not been widely used. As a new branch of layered technology, middleware plays an important role in shortening software development cycle and improving system performance. Layered technology and, therefore, there is synergy between the development of computer software development, the relationship between common progress, on the one hand, the development work driving the layering technology advances, on the other hand, it is layered technology progress and scientific use of the software development to comply with the demand of the era of computer network, to realize continuous development.


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