Digital Ocean Development-assignment代写

留学生assignment代写精选范文：“Digital Ocean Development”，这篇论文讨论了数字海洋开发。数字海洋，就是对海洋及其相关的东西进行统一化的认识。利用数字化技术对海洋环境和气候等问题进行处理，最大程度开发它的资源。而在开发的过程中，需要针对于不同的目标，也要合理地借助地理信息系统，高效的开发切实有用又方便的数字海洋系统。

Digital Ocean which refers to a unified digital awareness of the oceans and related phenomena and reproduce, the core idea is to use digital means to problems of the marine environment and climate are processed, thus achieving the greatest degree of resource utilization. Digital Marine is specifically characterized by the geographic data embedding mass, to a three-dimensional, multi-resolution sea description, referred to as "virtual ocean." Specifically, is the use of digital technology to many of the activities on the ocean and marine environment as well as on the oceans, climate change information into the computer, and become tradable share on the web, the aim of sustainable development of mankind on the greatest extent survival and physical life to provide services. In this context, the article about the development of digital ocean as the center is divided into four portions launched a detailed analysis to explore, is intended to provide some theoretical reference to the development of the digital ocean, the following is the specific content.

First, the concepts of mathematics and marine spatial information technology to observe the strict sense of the ocean is a digital computer technology, large-scale storage technology and multimedia technology-based, broadband network as a link, the massive application of geographic information for multiple spatial and temporal ocean , multi-resolution, multi-scale and multi-species of a three-dimensional description, and can use it as a tool to improve the quality of human life, give support activities.

Spatial information which refers to the information related to geography, space segment, according to the relevant information statistics show that more than eighty percent of the space has a close relationship and things are on Earth, at the same time when the study of spatial information used in terms of when the Earth it is called geographic information systems, will be referred to as marine geographic information systems used in the study of the oceans.

First needs specific digital content to have a clear understanding of the oceans on marine development ideas digital, digital ocean can clearly be divided into two basic types. One type is the application of digital marine systems, is the main content of a profession, namely areas of work, including integrated digital regional marine systems and thematic digital marine systems; secondly as a tool for digital marine systems, its use is GIS software has developed including spatial data storage, input, analysis, processing, and digital output, and many other functions marine systems. As people explore the ocean for deepening the field of digital marine applications also will be more extensive, so the development of digital marine systems, their work will also be increasingly important. Therefore, the development of digital ocean, it must be directed to different target applications, and adequate and reasonable useful and practical means of geographic information system software platform, the development of efficient and convenient digital marine systems.

Developed model refers to the geographic information system does not rely on any software, from spatial data editing, acquisition, processing and output to the final end, its all math all operations are carried out by the independent developer system design, programming language design and then choose a certain kind of program, programming on certain operating system platforms. Independent development model has the advantage that do not rely on any one of the commercial GIS software, and thus can effectively control the development costs. But the same because it is self-developed GIS software, it may be difficult to achieve and general commercial GIS software comparison in function, it is difficult to protect in the development of cost and function.

Secondary development which refers entirely by means of geographic information systems software development of marine applications, where the main function of the application for the voice capabilities. For developers, the direct use of geographic information system software y of the many macro language, developed as a platform by the original geographic information system software, developers can develop targeted. The advantage of this approach is that you can be a lot of savings in development time and development mode is also very simple, the drawback is the development and utilization of secondary macro language, which belongs to the second-rate into words in a programming language, it is difficult to guarantee in function, difficult to achieve perfection, in general secondary development process shown in Figure.

Integrated secondary development of the use of specialized GIS software for basic functions of digital marine information systems give satisfaction, but also can use a visual development software development platform, integration between the two type development, the specific development process shown in Figure 2.

Fourth, the comparative advantages and disadvantages of three kinds of development methods for the development of digital ocean of three ways described above, in which the self-development methodology is difficult, the cost is difficult to protect; and simplification of its secondary development by GIS software features limitations, it is difficult to guarantee in the development of functional, therefore at the moment the most promising use of digital marine development method is a method of integrating development, which have high analytical applications of geographic information system software, management role, while It has the advantage of visual development language visualization convenient and efficient programming. And then use the integrated secondary development of software has developed a good effect on the aesthetic, but also be safeguarded in terms of reliability and functionality, and maintenance is also very convenient to move late, but integrating development also has some disadvantages, namely in a large upfront investment in software development, you need to purchase two sets of software, but a word in order to protect quality, integration secondary development method is still the most used.

In summary, it refers to the digital ocean unified digital awareness of the oceans and really related phenomena and reproduce, the core idea is to use digital tools to problems of the marine environment and climate for processing, thus achieving the greatest degree of resource utilization. On the idea of its development needs for different application targets, adequate and reasonable means of geographic information system software platform and efficient development of practical and useful and convenient digital marine systems. At the moment the more widely used digital marine development and self-development, secondary development, integrated secondary development of three main development model, which integrates the second development is the main direction of development of marine information, the relevant part of the business is worth give sufficient attention.

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