Under the guidance of the enterprise development strategic objectives, on the basis of understanding the enterprise development strategic objectives and business planning, diagnose, analyze and evaluate the current situation of enterprise management and it, optimize the enterprise business process, and put forward the vision, objectives and strategy of enterprise informatization construction in combination with the practical experience of informatization in the industry and the mastery of the latest information technology development trend. Usually, when enterprises carry out information planning, they will carry out information planning in three ways. Hire a professional information planning consulting company; Carry out micro consulting activities with experts with experience in information planning; And rely on the internal strength of the enterprise to complete the information planning project. Traditional information planning companies can help enterprises establish a complete information planning system; Micro consulting can help enterprises refine the focus of information planning, so that enterprises can learn from the success or failure experience of others and avoid pitfalls.

Information planning consultation is a consultation aimed at the focus problems encountered in the process of information planning.

By inviting enterprise executives and consulting experts with successful or failed information planning experience with high industry relevance and high similarity of business types. In order to help enterprises avoid the pitfalls of information planning in the early stage of information planning; Solve the practical problems encountered in the medium-term informatization planning; In the later stage of the implementation of informatization planning, make reasonable evaluation and improvement, and make fewer detours and mistakes with the help of the experience and insight of experts.

Cloud computing is to distribute computing on a large number of distributed computers rather than local computers or remote servers. The operation of enterprise data center will be more similar to the Internet. This enables enterprises to switch resources to needed applications and access computers and storage systems according to their needs.

For example, from the ancient single generator mode to the centralized power supply mode of power plant. It means that computing power can also be circulated as a commodity, just like gas and hydropower. It is easy to access and cheap. The biggest difference is that it is transmitted through the Internet.

The generally accepted characteristics of cloud computing are as follows:

(1) Super large scale

The "cloud" has a considerable scale. Google cloud computing has more than 1 million servers, and the "cloud" of Amazon, IBM, Microsoft and Yahoo all have hundreds of thousands of servers. Enterprise private cloud generally has hundreds of thousands of servers. "Cloud" can give users unprecedented computing power.

(2) Virtualization

Cloud Computing supports users to obtain application services at any location and using various terminals. The requested resource comes from the "cloud", not a fixed tangible entity. The application runs somewhere in the "cloud", but in fact, users don't need to know or worry about the specific location of the application. With only a laptop or a mobile phone, we can achieve everything we need through network services, even tasks such as supercomputing.

(3) High reliability

"Cloud" uses measures such as multi copy fault tolerance of data and isomorphism and interchangeability of computing nodes to ensure the high reliability of services. Using cloud computing is more reliable than using local computers.

(4) Generality

Cloud computing is not specific to specific applications. Under the support of "cloud", it can construct ever-changing applications. The same "cloud" can support different applications at the same time.

(5) High scalability

The scale of "cloud" can be dynamically scaled to meet the needs of application and user growth.

(6) On demand service

"Cloud" is a huge resource pool that you can purchase on demand; Clouds can be charged like tap water, electricity and gas.

(7) Extremely cheap

Due to the special fault tolerance measures of "cloud", extremely cheap nodes can be used to form the cloud. The automatic centralized management of "cloud" eliminates the need for a large number of enterprises to bear the increasingly high data center management cost. The universality of "cloud" greatly improves the utilization of resources compared with traditional systems. Therefore, users can fully enjoy the low-cost advantages of "cloud", which often costs only a few hundred dollars In a few days, you can complete the tasks that previously required tens of thousands of dollars and months.

Cloud computing can completely change people's future life, but at the same time, we should also pay attention to environmental issues, so as to truly contribute to human progress, rather than simple technological upgrading.

1. Tasks of system design

After system analysis, the logical model of the new system is obtained, and the problem of "what to do" of the system is solved. The system design starts from the logical function requirements of the system, carries out various specific designs according to the actual conditions, determines the implementation scheme of the system, and solves the problem of "how to do" of the system. Therefore, system design is an important link in the development of enterprise information system.

The main purpose of the design is to make a blueprint for the next stage of system implementation. The focus of the system analysis stage is to understand the situation, find and describe problems and solve the problem of "what to do". The design stage will focus on the problem of "how to do". Therefore, it is necessary to carefully describe the advantages and disadvantages of various schemes in the overall design and implementation of the system, and finally select the most appropriate scheme through the detailed design and implementation of various technologies.

2. Basis of system design

System design is a process from abstract to concrete on the basis of system analysis. At the same time, we should also consider the internal and external environment, subjective and objective conditions of system implementation. Generally, the main basis of work in the system design stage can be considered from the following aspects.

1) Results of system analysis. From the perspective of workflow, system design is the continuation of system analysis. Therefore, system designers must design in strict accordance with the objectives, tasks and logical functions specified in the results of the system analysis stage - "system specification". A full understanding of the logic function of the system is the key to the success of the system design.

2) Current technology. It mainly refers to the optional computer hardware technology, software technology, data management technology, data communication and computer network technology.

3) The current standards, norms and relevant legal systems of information management and information technology.

4) User requirements. The direct judge of the system is the user. The design of the new system should fully consider, understand and respect the personalized requirements of users. Especially the requirements of users in operation and use, such as working habits, computer skills, human factors engineering, etc. It is convenient for users to operate and use as much as possible.

5) System operating environment. The new system should not only match the current management level, management mode and method of the enterprise organization, but also adapt to the needs of organizational change and development, and promote the improvement of management level. In other words, it should meet the current needs. Adapt to the working environment of the system, such as the configuration of infrastructure, the spatial distribution of direct users, the natural conditions of the workplace and the requirements of security and confidentiality. In the system design, we should also consider the hardware and software status of the current system and the development trend of management and technical environment. In the technical scheme of the new system, we should not only protect the existing investment as much as possible, but also have strong adaptability to adapt to the future development.