Databases search multicriteria and logical operators

This is part of the submitted UseCaseList.

Scenario

A description of the scenario that you have in mind.

The user wants to search for watermarks containing a specified number - one or more - of elements, but not others. Say all watermarks containing a bull's head and a cross, but not a snake.

Importance

How important do you see this use case as?

• Must Support

Dependencies

What other use cases are affected by the implementation of this one?

• Databases usability / db integration / dating / authentication / cartography / bibliography

Input

Things that the user must/might supply to the system.

• Visual search by user

Output

Things that the user will recieve in response to their request.

• Watermarks are found.

Difficulties

Areas in which you foresee problems/issues arising.

• Not all elements are described or the all basic logical operators implemented (issue identical to the previous on this list).

Example

An example supporting this use case.

• I can't find wm-s with a "Krone" and "darunter Lilie" beacause the string concatenation operator is not implemented (symbol "paranthesis"). Idem for the NOT operator.

Other Information

Any other information that you think is important to include.

• ...

Comments

Comment from other partner regarding the use case.

• ...

-- VladAtanasiu - 13 Sep 2006