A graphical query language supporting recursion
SIGMOD '87 Proceedings of the 1987 ACM SIGMOD international conference on Management of data
PICASSO: a graphical query language
Software—Practice & Experience
Principles of pictorial information systems design
Principles of pictorial information systems design
Research issues in spatial databases
ACM SIGMOD Record - Directions for future database research & development
DOODLE: a visual language for object-oriented databases
SIGMOD '92 Proceedings of the 1992 ACM SIGMOD international conference on Management of data
ACM SIGMOD Record
Designing and integrating user interfaces of geographic database applications
AVI '94 Proceedings of the workshop on Advanced visual interfaces
Diagrammatic vs textual query languages: a comparative experiment
Proceedings of the third IFIP WG2.6 working conference on Visual database systems 3 (VDB-3)
Human-computer interaction (2nd ed.)
Human-computer interaction (2nd ed.)
Developing Software for the User Interface
Developing Software for the User Interface
The Psychology of Human-Computer Interaction
The Psychology of Human-Computer Interaction
An Efficient Pictorial Database System for PSQL
IEEE Transactions on Software Engineering
A Human Factors Experimental Comparison of SQL and QBE
IEEE Transactions on Software Engineering
The Knowledge-Based Object-Oriented PICQUERY+ Language
IEEE Transactions on Knowledge and Data Engineering
Extending a DBMS for Geographic Applications
Proceedings of the Fifth International Conference on Data Engineering
GUIDE: Graphical User Interface for Database Exploration
VLDB '82 Proceedings of the 8th International Conference on Very Large Data Bases
About Ambiguities in Visual GIS Query Languages: A Taxonomy and Solutions
VISUAL '00 Proceedings of the 4th International Conference on Advances in Visual Information Systems
Exploiting Extensible DBMS in Integrated Geographic Information Systems
SSD '91 Proceedings of the Second International Symposium on Advances in Spatial Databases
Strong Integration of Spatial Domains and Operators in a relational Database System
SSD '93 Proceedings of the Third International Symposium on Advances in Spatial Databases
SIGGRAPH '82 Proceedings of the 9th annual conference on Computer graphics and interactive techniques
VL '96 Proceedings of the 1996 IEEE Symposium on Visual Languages
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Geographic information systems (GIS) manage geographical data and present the results visually using maps. Visual languages are well adapted to query such data. We propose to express queries sent to a GIS using symbolic maps with metaphors, i.e., visual representation of the spatial relationships making up the query. Visual languages suffer from the appearance of ambiguity. We distinguish visual ambiguities from selection ambiguities. Visual ambiguities appear when a given visual representation of a query corresponds with several interpretations. In order to define new spatial relationship, the user points out one (or several) metaphor(s) already available in the restitution space. Selection ambiguities appear when a given selection corresponds with several metaphors. We suggest palliating visual and selection ambiguities by associating a placing method with composition automata. The placing method insures to minimize level of ambiguity. We determine levels of ambiguity and user interaction complexity depending on the required expressive power. The higher the desired expressive power is, the higher the level of ambiguity is and thus the more complex the user interaction is. A prototype has been implemented to validate the placing method and the automaton allowing the highest expressive power.