Update files.

Print files on paper

Data entry.

Delete files.

A criteria.

A relation.

A tuple.

An attribute.

Is no need for primary key data

Is much more data independence than some other database models

Are explicit relationships among records

Are tables with many dimensions

Is a documentation technique.

Needs data volume and processing frequencies to determine the size of the database.

Involves modelling independent of the DBMS

Is designing the relational model.

Hash

Direct.

Sequential

All of the above.