Some concepts of managing information systems
[Information] It is an objective existence of all transactions through the message, intelligence, instructions, data, and signals that occur by the material carrier.
[Data] It is a physical symbol that people can be identified by people to reflect the objective world, or data is an objective fact that can be recorded in various physical symbols that can be identified.
[Property of Information] Realistic, Effect, Expressive, Alternative, Compressibility, Diffusion, Value, Destination, Level, Share.
Enterprises in logistics, capital flow and information flow development, logistics, capital flow and information flows in enterprises, mutual restriction, interaction, and complete the task of enterprises.
Information is the basis for decision making.
Decision is the basis of action, and the decision has a clear goal, there must be a feasible plan, to conduct causal analysis and comprehensive analysis, decision-making is the optimization process of the program.
[System] is a monolithic function with a number of elements having a specific function, with each other.
The greatest inventions in the 20th century:
General System Theory, Control Theory, Information Theory of "Three Theory";
"New Three Theory" Dissipative Structure Theory, Mutation, Collaborative Theory.
[System Engineering] Although each system is composed of many different special functional parts, there is a mutual relationship between these functional parts, but each system is complete, each system requires One or several objects, system engineering is weighing according to various goals, comprehensively obtain optimal solutions, and enables each component (feature) to maximize each other.
[Information System] refers to a system for collecting, processing, storage, management, retrieving, retrieving information, if necessary, and can provide useful information to people.
[Information Management System] is the theoretical approach to system management, with computer network and modern communication technology as tools and means with function of processing, storage, and delivery of information, while having prediction, control, organization, and decision-making. Human machine system.
Function: Information processing, prediction, planning, control, assistance decision.
Successful information management system = reliable hardware practical software powerful organization and coordination
