Information management system design book structure frame:
First, system analysis
1, development background
Briefly introduce the background of the development of this system, explaining important practical significance of developing this system.
2, demand analysis
Analyze the business requirements of this information management system application object, and proposes this information management system for this business requirement.
3, achieve the goal
It is expected that the system itself should achieve after investing in this information management system.
Second, the system design
1, system structure diagram
Draw the design structure block diagram of this information management system according to the demand analysis and achievement of the system analysis.
2, business flow chart
Draw the flow diagram of the corresponding information management system based on the business operation process, and draw the design flow chart of each module
Third, database design
1, demand analysis
Investigate the application area, the information requirements and operational requirements of each application in the field will be analyzed to form a demand analysis manual. The goal of demand analysis is to give a detailed definition of data items, data items between applications, data items and data operation tasks, lay a solid foundation for database concept, logic design, physical design, to optimize database logical structure and The physical structure provides a reliable basis.
2, concept design
The process of user demand obtained by analyzing the demand analysis is the concept design of the conceptual model. It is the key to the entire database design. The conceptual design of the concept design requires easy understanding, easy to change, easy to transform, and correctly represent user needs. Models commonly used in conceptual design are entity contact models, referred to as ER models.
3, logic design
The basic ER diagram for designing the concept structure design phase is converted to a logical structure that is in line with the data model supported by the DBMS product.
4, physical design
The database is called the physical structure and access method on the physical device as the physical structure of the database, which depends on a given computer system. The process of selecting the physical structure of the most suitable application requirements for a given logic data model is the physical design of the database. Physical design is usually divided into two steps: (1) Determine the physical structure of the database, mainly refers to access methods and storage structures in the relational database.
(2) Evaluation of the physical structure, the focus of evaluation is time and spatial efficiency.
Fourth, the main program list
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