Development of computer-aided management system

Abstract: The computer-aided management system to build a comprehensive business platform that integrates all of the value of Information as a basis for decision-making of various departments to reduce the decision risk, and realize maximum benefits, followed by its high operating platform, search, analysis, etc module greatly improve the staff's efficiency and accuracy.

Abstract: computer-aided management system constructs a comprehensive business platform, integrates all Information as the value of each department decisions on, reduce the decision risk, to achieve the company benefit maximization. Secondly its high-speed operation platform, retrieval, and analysis function module have greatly improved the employee's work efficiency and accuracy.

Keywords:: computer-aided management systems, systems analysis, life cycle
Keywords:: computer-aided management system, system analysis, life cycle method

0 Introduction
Global Economic integration and the Internet as the representative of the global Information for the enterprise's survival, development has brought enormous challenges and opportunities. [1] enterprises to participate in the new century, competition, internal efficiency potential to tap, standard management and external changes must be fast growing customer demand as the center, all of which require an effective Information management system to assist business management and decision-making, developing a computer-aided management system is of great significance:
A rationalization of the management system
Supporting management Information system established to enable information processing by the distributed processing to focus on changes to the centralized management to decentralized management transformation, both played utilization of information, but also improve the quality and quantity of information, enabling managers to make the right decisions.

2 scientific management methods
After the establishment of the auxiliary management system, can take advantage of the characteristics of computing capacity, the use of mathematical models of the management activities of enterprises quantitative analysis. [2] on the one hand that can improve the accuracy of management, to avoid the subjective and arbitrary decision-making on the other hand, can enhance the prediction function, so that managers by the coarse to fine, so there is predicted in advance, from passive to active.

3 grass-roots work to strengthen business management
The work of the auxiliary management system requirements on the basis of very strict requirements of the management system without reasonable rules and regulations and improve, management science, also called raw data complete and accurate.

4 to improve management quality and management level personnel
After the establishment of the auxiliary management system that allows managers from the tedious, repetitive work, freed, conduct Research, improve efficiency, improve management quality and business management.

In the development process will also be some problems, the main reasons for failure are: misunderstanding, can not correctly understand the importance of system development, one-sided point of view, poor management resulted in the development cycle to extend the system, funding overruns, quality can not guarantee the overall lack of good planning [3].

Therefore, development aid management system must follow certain principles [4]: ​​number one principle, the principle of optimization and innovation, applicability and advanced principles of information engineering principles, user-oriented principles.

System development to focus on the choice of operating environment: computer network support in the enterprise environment, it is necessary for hardware, network operating systems, database management systems, network computing mode choice. [5] choice should depend on the actual needs of so that the whole system is advanced, practical, reliability, and scalability and other development. Select the content are:
4.1 The selection of network hardware major, major equipment, including: �� �� network server key equipment.

4.2 The network computing model, in a networked environment, shared resources, scope and resource sharing in two ways: on the other tier computing model and resource sharing client / server computing model.

4.3 network operating system of choice, should consider the following factors: hardware independence, bridging capability to support multi-server, supports multiple users, access security control, network management, user interface, support multi-protocol capabilities. The widely used network operating systems are: NetWare, UNIX, Windows NT, LINUX and so on.

Links to Research Papers Download http://www.hi138.com 4.4 database management system selection, design and working principle of their different network environment can be divided into multi-user database running database and distributed database two categories.

Common system development methods: a structured method (process-oriented approach, information modeling methods (data-oriented approach, object-oriented approach. [6] is a structured business processes or functions from the perspective of both established correspondence between the information modeling method is the angle from the data or information to establish the corresponding relationship between the object-oriented approach is to process the data from the package together, and as a whole point of the object establish the correspondence between the two.

Then there is the overall plan: it is the basis for successful systems development, the whole system development program, is the basis for funding, is the basis of established development projects. Its main contents include: the current system, a preliminary investigation, analysis and evaluation, analysis and determine the objectives of the new system, scale, the main problem to be solved, functional structure, constraints, development of systems of initial implementations, feasibility analysis, determine the project's development order, development of methods to develop preliminary plans for the new system development .

After the planned system architecture, system requirements and logical to do functional analysis, the main tasks include: detailed investigation of the current system, analysis and evaluation of existing systems, the logical model of the new system, writing system analysis manual.

Jie Xialai implementation phase of system design: system design, system analysis is based on the analysis phase the system proposed new system logic model, a new physical model of the system, also known as physical design. The system design goals, the main measure are: efficiency, reliability, work quality, variability, economy. system design mainly includes: hardware and software system design. module design principles: coupling between blocks to be as low as possible, block condensation level to as high as possible, heuristic rules.

Finally, the new system design model is the concrete implementation. This stage takes the money, manpower more, take the longest time, it is necessary to strengthen organization and leadership, so that the whole system to achieve the work of an organized, planned, as required, in an orderly conduct. main tasks are: preparation and debugging of software, data entry and assembly, to prepare the working environment, personnel training, system descriptive document writing, debugging and change the total system. system commissioning professional needs to master the software testing methods mainly to verify the correctness of the software, the methods are generally two kinds of theory and experiment. theory of law is proof of the correctness of a software problem is the use of mathematical methods proved the correctness of the software. experiment can be divided into dynamic test ( black box method and the white box and static test method (including the desk checking, code joint hearing and so on.

References:
[1] Management Information System, Mcleod, Printice Hall, 1998.

[2] Thomas R. Peltier. Information Security Risk Analysis. Rothstein Associates Inc, 2001.

[3] Xue Hua Cheng editor. Management Information System (third edition. Tsinghua University Press .1999.

[4] Chen Shengguo. Information Systems Analysis and Design. Xi'an: Xidian University Press, 2001.

[5] Wang Tongyu, Hsiu-Hung Wang. Database system design tutorials. Lanzhou: Gansu Culture Press, 2002.

[6] HUANG Ti-yun. Management Information System. Beijing: Economic Science Press, 2000. Links http://www.hi138.com Research Papers Download