1. Control and Management -- 1.0 Introduction -- 1.1 Analysis of events -- 1.2 Management versus control -- 1.3 Modules -- 1.4 Data around one module -- 1.5 Activity around one module -- 2. The Time element -- 2.1 Analysis of the term of a module -- 2.2 Factors affecting the term of a module -- 2.3 Decreasing the term of a module -- 2.4 Importance, level and term of a module -- 3. Management Structure -- 3.1 Efficiency of a management structure -- 3.2 Formation of modules -- 3.3 Relations in the structure -- 3.4 Pyramidical structure -- 3.5 Horizontal versus vertical relations -- 4. Data Processing and the Significance of Computers -- 4.1 Data processing -- 4.2 Information system -- 4.3 Experience in an information system -- 4.4 Mathematical operations on information systems -- 4.5 Use of machines for information systems -- 4.6 Computer program -- 4.7 Man-machine systems -- 5. Information System in A Management Structure -- 5.1 Steering systems -- 5.2 Isolated systems -- 5.3 Standardisation -- 5.4 Integration -- 5.5 Mechanisation -- 5.6 A mechanised integrated subsystem -- Summary -- Literature.