Notes for preparation of information system project manager --- information knowledge

This part of knowledge mainly appears in the exam questions in the morning , The main points are as follows ：

• Definition of information and informatization , Information transmission model .

• What are the nine strategic priorities of the national informatization development strategy .

• What is the national information system 6 Elements .

• Definition of e-government , And several forms of e-government , Such as G2B,G2G etc. .

• The definition of enterprise informatization and the key words in the definition .

• ERP Definition and keywords .

• CRM The definition of and its two parts , Trigger center and mining center .

• SCM The definition of , Especially the understanding of the definition of supply chain .

• EAI Definition and classification of , What are the integrated patterns .

• The definition of e-commerce , Those who participate in e-commerce 4 Class entity , According to different classifications of the subjects engaged in business activities .

• BI Definition ,DW features ,DM The classification of .

• New generation information technology .

Information and informatization

Definition of information ：

• Norbert · Wiener ： Information is information , It's neither matter nor energy .

• Claude · Shannon ： Information is the reduction of uncertainty .

• Source ： Sources of information

• code ： The process of transforming information into information , This is according to a certain symbol , Signal rules .

• channel ： The channel of information transmission , Is to transmit the signal , Media for storage and processing .

• noise ： Interference in information transmission , It will affect the sending and receiving of information , Change the information meaning of both .

• decode ： The antiprocess of the new code , The process of restoring information to information .

• Shinjuku ： The recipient of information .

Information has value , The value depends on the quality of information . The attributes of quality include ：

• Accuracy ： The accuracy of the description of things .

• integrity ： The comprehensiveness of the description of things , Complete information includes all important facts .

• reliability ： Sources of information , collect , Transmission is trusted , As expected .

• timeliness ： It refers to the interval between the time of obtaining information and the time of occurrence .

• economy ： Refers to the acquisition of information , The cost of transmission is acceptable .

• Verifiability ： The degree to which the main quality attributes of information can be verified or falsified .

• Security ： In the life cycle of information , The possibility that information can be accessed without authorization , The less likely , The more secure .

The definition of informatization ：

• Informatization is computer , Modernization of communication and network technology .

• Informatization is the development process of changing from a society dominated by material production to a society dominated by information industry .

• Informatization is the process of evolution from industrial society to information society .