End-User Requirements, Tasks that the user of the database will be expecting to do, Functional Requirements, Tasks that the database will be expected to perform, Entity, A person, place, thing event or concept that data will be stored about., Attribute, Characteristics of an entity e.g firstname, surname etc, Aggregate Function used to find the maximum value , MAX(), Aggregate Function used to find the average value, AVG(), A certain query used to delete a record from a database, DELETE, Accuracy of output, A query could be inaccurate if the wrong/no alias is used, The operator used in a wildcard, LIKE, Indicates the properties of each attribute, Data Dictionary.

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