Designing for usability: key principles and what designers think
Communications of the ACM
Multibase—integrating heterogeneous distributed database systems
AFIPS Conference Proceedings; vol. 55 1986 National Computer Conference
Applying cognitive psychology to user-interface design
Applying cognitive psychology to user-interface design
A comparative analysis of methodologies for database schema integration
ACM Computing Surveys (CSUR)
Readings in database systems
Scientific Symposium on Syntax and Semantics on Natural Language at the Computer
Scientific Symposium on Syntax and Semantics on Natural Language at the Computer
Natural language communication with computers: some problems, perspectives, and new directions
Conference of the Dutch Psychonomic Society on Human-computer interaction: psychonomic aspects
Human-computer interface development: concepts and systems for its management
ACM Computing Surveys (CSUR)
MSQL: a multidatabase language
Information Sciences: an International Journal
DATAPLEX: an access to heterogeneous distributed databases
Communications of the ACM
The 3DIS: an extensible object-oriented information management environment
ACM Transactions on Information Systems (TOIS)
The Computer Journal - Special issue on databases
Facilitating connectivity in composite information systems
ACM SIGMIS Database
A graph-oriented object model for database end-user interfaces
SIGMOD '90 Proceedings of the 1990 ACM SIGMOD international conference on Management of data
A polygon model for heterogeneous database systems: the source tagging perspective
Proceedings of the sixteenth international conference on Very large databases
Federated database systems for managing distributed, heterogeneous, and autonomous databases
ACM Computing Surveys (CSUR) - Special issue on heterogeneous databases
Heterogeneous distributed database systems for production use
ACM Computing Surveys (CSUR) - Special issue on heterogeneous databases
Interoperability of multiple autonomous databases
ACM Computing Surveys (CSUR) - Special issue on heterogeneous databases
Language features for interoperability of databases with schematic discrepancies
SIGMOD '91 Proceedings of the 1991 ACM SIGMOD international conference on Management of data
K: a high-level knowledge base programming language for advanced database applications
SIGMOD '91 Proceedings of the 1991 ACM SIGMOD international conference on Management of data
QBD*: A Graphical Query Language with Recursion
IEEE Transactions on Software Engineering
Information Resources Management in Heterogeneous, Distributed Environments: A Metadatabase Approach
IEEE Transactions on Software Engineering
Metadata modeling and management
Metadata modeling and management
The model-assisted global query system
The model-assisted global query system
Information visualization using 3D interactive animation
Communications of the ACM - Special issue on graphical user interfaces
Adaptiveness in information systems integration
Adaptiveness in information systems integration
An introduction to database systems (7th ed.)
An introduction to database systems (7th ed.)
The functional data model and the data languages DAPLEX
ACM Transactions on Database Systems (TODS)
Query processing in a system for distributed databases (SDD-1)
ACM Transactions on Database Systems (TODS)
ACM Transactions on Database Systems (TODS)
FLEX: A Tolerant and Cooperative User Interface to Databases
IEEE Transactions on Knowledge and Data Engineering
A Visual Tool for Managing Relational Databases
Proceedings of the Second International Conference on Data Engineering
A Metadata Approach to Resolving Semantic Conflicts
VLDB '91 Proceedings of the 17th International Conference on Very Large Data Bases
TIMBER: A Sophisticated Relation Browser (Invited Paper)
VLDB '82 Proceedings of the 8th International Conference on Very Large Data Bases
Structured Database System Analysis and Design through Entity Relationship Approach
Proceedings of the Fourth International Conference on Entity-Relationship Approach
TSER: A Data Modeling System Using the Two-Stage Entity-Relationship Approach
Proceedings of the Sixth International Conference on Entity-Relationship Approach
Software Agent-Oriented Frameworks for Global Query Processing
Journal of Intelligent Information Systems
Data mining for design and manufacturing
Information Technology and Management
A metadatabase-enabled executive information system (part A): a flexible and adaptable architecture
Decision Support Systems
Enterprise Information Systems
A Metadatabase-supported shell for distributed processing and systems integration
Knowledge-Based Systems
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Today's enterprises typically employ multiple information systems, which are independently developed, locally administered, and different in logical or physical designs. Therefore, a fundamental challenge in enterprise information management is the sharing of information for enterprise users across organizational boundaries; this requires a global query system capable of providing on-line intelligent assistance to users. Conventional technologies, such as schema-based query languages and hard-coded schema integration, are not sufficient to solve this problem. This article develops a new approach, a “model-assisted global query system,” that utilizes an on-line repository of enterprise metadata—the Metadatabase—to facilitate global query formulation and processing with certain desirable properties such as adaptiveness and open-systems architecture. A definitional model characterizing the various classes and roles of the required metadata as knowledge for the system is presented. The significance of possessing this knowledge (via a Metadatabase) toward improving the global query capabilities available previously is analyzed. On this basis, a direct method using model traversal and a query language using global model constructs are developed along with other new methods required for this approach. It is then tested through a prototype system in a computer-integrated manufacturing (CIM) setting.