What is the difference between information systems designer and designer of databases?

Information System desinger is how to make database generat information and delever it to home it may be intended .

systems designer : The person who create the documents of the implementation and integration. He Depends on his document on the results from the analyst and forwords the design documents to the programmer. The documents he prepare will contain a charts and diagrams and instructions for the programmer.

Database Designer : The person who create the logical data model,  and set the needed physical storage parameters. He will create the tables and views that have the most possible speed access, security. He will Determine the relationships between the elements.