Ict a2

Normalisation

Relational database

Primary key

Foreign key

Relational database > flatfile

Data integrity

Data redundancy

Data warehousing

Data mining

MIS

Distributing DATABASE

SECURITY concerns with distributed databases

Distributed database +/-

Data consistency

Data independence

Reducing staff fears

MIS used?

Good mis (4) aqpd

Poor mis [hic]

Consequences of change

Maintenance issues (ibleeus)

Attribute

Relationship

Feasability study

System maintenance methods

Use accs and logs (3)

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