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Database (DB) design
Three
distinct features
Database design help determine what data are important
07/15/00 MACurran &
S. Kellum|
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Database (DB) design |
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Three
distinct features
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Three distinct features characterize the database approach to information processing: (1) shareability of data; (2) centralized data management and control; and (3) adaptability. | |||||||||
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Database design help determine what data are important
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Database design is logical and based on the need to understand which data is important, what the characteristics of the data are, and how data relate. Data decisions are made based on information about entities: people, events or things. Each entity belongs to exactly one entity class (type or set). All entities in a given class have exactly the same characteristics. The classes are chosen to present information in a more meaningful way. Specific patients, orders, and medications are examples of entity occurrences or instances. Occurrences are distinguished from one another on the basis of one of the data items (an identifier). Patient # is an example of an identifier. [Top] | |||||||||
| The Handbook of medical Informatics presents a model for understanding levels of nursing data. [Top] | ||||||||||
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07/15/00 MACurran &
S. Kellum |
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