Restructuring for large databases: three levels of abstraction
ACM Transactions on Database Systems (TODS)
Implementation of a prototype generalized file translator
SIGMOD '75 Proceedings of the 1975 ACM SIGMOD international conference on Management of data
A logical-level approach to data base conversion
SIGMOD '75 Proceedings of the 1975 ACM SIGMOD international conference on Management of data
An approach to Stored Data Definition and Translation
SIGFIDET '72 Proceedings of 1972 ACM-SIGFIDET workshop on Data description, access and control
A developmental model for data translation
SIGFIDET '72 Proceedings of 1972 ACM-SIGFIDET workshop on Data description, access and control
Towards a formulation and definition of data reorganization
SIGFIDET '74 Proceedings of the 1974 ACM SIGFIDET (now SIGMOD) workshop on Data description, access and control
Architecture to an interactive migration system (AIMS)
SIGFIDET '74 Proceedings of the 1974 ACM SIGFIDET (now SIGMOD) workshop on Data description, access and control
A data description language approach to file translation
SIGFIDET '74 Proceedings of the 1974 ACM SIGFIDET (now SIGMOD) workshop on Data description, access and control
“Automatic generation of data conversion programs using a data description language”
SIGFIDET '74 Proceedings of the 1974 ACM SIGFIDET (now SIGMOD) workshop on Data description, access and control
Generalized data base management system data structures and their mappingto physical storage
Generalized data base management system data structures and their mappingto physical storage
An approach to data description and conversion
An approach to data description and conversion
Operational software for restructuring network databases
AFIPS '77 Proceedings of the June 13-16, 1977, national computer conference
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Many data processing installations are confronted with the problem of data conversion. Some of the conversion problems are conversion of files foreign to the installation, conversion of files into a data base management system format, and conversion of all data to upgrade hardware or software. Simple file organizations pose few conversion problems, while logically and physically complex data bases emphasize many conversion problems. The current approach of writing specific translation programs is time consuming and frequently inaccurate; a new approach is desirable. To address these conversion problems, The University of Michigan Data Translation Project has developed a generalized translation methodology. This methodology has been applied in the development of several prototype data translators. These translators have progressively advanced the physical transformation capabilities (reformatting) and the logical transformation capabilities (restructuring). The reformatting capabilities of the translators include the ability to access and modify the physical storage structures which support sequential, indexed sequential, and network organizations. The restructuring capabilities allow complex restructuring of lists, trees, and networks. Future extensions to the translation methodology include the decomposition of the translation process into small, but specific steps. Languages would be developed to address each of these small translations, and could lead to a generalized accessing mechanism and a data interchange form.