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Database design is the design of logical and physical structure of one or more databases to accommodate the information needs of the users in an organization for a defined set of applications.
Goals of database design
Phases of database design Requirements collection and
analysis. Conceptual database design. Choice of a DBMS. Data model mapping. Physical database design. Database system
implementation and tuning.
Design process
Design process
Design of data content and structure (Data-driven)
Design of database applications (process-driven)
Phase1: Requirements Collection and Analysis
Major activities in phase1
Identification of application areas and user groups.
Analysis of existing documents.
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Analysis of current operating environment.
Collection of responses from potential users.
Requirements specification techniques
To transform requirements into a better structured form.
Conclusion
The requirements collection and analysis
time consuming crucial to the success of
the information system
