An introduction to database systems: vol. I (4th ed.)
An introduction to database systems: vol. I (4th ed.)
ISIS: interface for a semantic information system
SIGMOD '85 Proceedings of the 1985 ACM SIGMOD international conference on Management of data
The functional data model and the data languages DAPLEX
ACM Transactions on Database Systems (TODS)
Database description with SDM: a semantic database model
ACM Transactions on Database Systems (TODS)
Limitations of record-based information models
ACM Transactions on Database Systems (TODS)
Extending the database relational model to capture more meaning
ACM Transactions on Database Systems (TODS)
A language facility for designing database-intensive applications
ACM Transactions on Database Systems (TODS)
The entity-relationship model—toward a unified view of data
ACM Transactions on Database Systems (TODS) - Special issue: papers from the international conference on very large data bases: September 22–24, 1975, Framingham, MA
Database abstractions: aggregation and generalization
ACM Transactions on Database Systems (TODS)
Data Models
An extended relational algebra with control over duplicate elimination
PODS '82 Proceedings of the 1st ACM SIGACT-SIGMOD symposium on Principles of database systems
An implementation of GEM: supporting a semantic data model on a relational back-end.
SIGMOD '84 Proceedings of the 1984 ACM SIGMOD international conference on Management of data
Queries in Object-Oriented Databases
Proceedings of the Fourth International Conference on Data Engineering
GORDAS: A Formal High-Level Query Language for the Entity-Relationship Model
ER '81 Proceedings of the Second International Conference on the Entity-Relationship Approach to Information Modeling and Analysis
Multibase: integrating heterogeneous distributed database systems
AFIPS '81 Proceedings of the May 4-7, 1981, national computer conference
Implementation of general constraints in SIM
SIGMOD '92 Proceedings of the 1992 ACM SIGMOD international conference on Management of data
ACM Transactions on Database Systems (TODS)
Semantic data modeling of hypermedia associations
ACM Transactions on Information Systems (TOIS)
Extensions to Query Languages for Graph Traversal Problems
IEEE Transactions on Knowledge and Data Engineering
Semantic WEB service data object management
CCDC'09 Proceedings of the 21st annual international conference on Chinese Control and Decision Conference
Data storage management in semantic web service
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
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SIM is a fully featured, commercially available database management system based on a semantic data model similar to Hammer and McLeod's SDM SIM has two primary modeling goals. The first is to narrow the gap between a user's real-world perception of data and the conceptual view imposed by the database system because of modeling presuppositions or limitations. The second goal is to allow, as much as possible, the semantics of data to be defined in the schema and make the database system responsible for enforcing its integrity SIM provides a rich set of constructs for schema definition, including those for specifying generalization hierarchies modeled by directed acyclic graphs, interobject relationships and integrity constraints. It also features a novel, easy-to-use, English-like DML. This paper describes the key modeling features of SIM, the architecture of the system and its implementation considerations.