Before anyone can bid on any lot , this person must be registered as a client with the auction house. Each client must have a name , nickname , password , address . Notice that some clients may be people, while some other clients may be special agents who represent people who wish to remain annonymous. This information may also be included with the client . Each employee has a name , nickname , password , position .
Some employees work at the auction floor calling the lots for particular auctions .
Employee may have a picture available. Other types of objects may be included in the database by the designers if deemed necessary or desirable. I strongly recommend Java , as your database system will have to display images and have a nice interface . The next section describes the desired functionality of the database. Write access to all attributes of lots except for current bids information for available lots .