Written by our leading Information Technology author, this accessible text is a valuable resource for all students of IT. Stephen Doyle's book offers comprehensive coverage for this growing subject area.Two techniques are used by the analyst for this: entity relationship modelling ( ERM) and normalisation. ... 1 GOAL (scored in a football match) 2 CD (in a music catalogue) 3 EMPLOYEE (in a personnel system) 4 STUDENT ... Relationships between entities may be shown in a diagram called an entity relationship diagram.
|Title||:||Understanding Information Technology|
|Publisher||:||Nelson Thornes - 2000|