Describe your entities. Be sure to define the meaning of each attribute. Be sure to defend your choices. You may wish to give an example to illustrate your choice. Description of how entity and referential integrity will be preserved.
Some explanation is required here.
If you choose not to build an index, explain why it is not necessary for your database. You must have tables and views defined. You must implement at least one query for each user. You must also have at least one insert, one update, and one delete option.