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About Michael Gorman

Michael, the President of Whitemarsh Information Systems Corporation, has been involved in database and DBMS for more than 40 years. Michael has been the Secretary of the ANSI Database Languages Committee for more than 30 years. This committee standardizes SQL. A full list of Whitemarsh's clients and products can be found on the website. Whitemarsh has developed a very comprehensive Metadata CASE/Repository tool, Metabase, that supports enterprise architectures, information systems planning, comprehensive data model creation and management, and interfaces with the finest code generator on the market, Clarion ( The Whitemarsh website makes available data management books, courses, workshops, methodologies, software, and metrics. Whitemarsh prices are very reasonable and are designed for the individual, the information technology organization and professional training organizations. Whitemarsh provides free use of its materials for universities/colleges. Please contact Whitemarsh for assistance in data modeling, data architecture, enterprise architecture, metadata management, and for on-site delivery of data management workshops, courses, and seminars. Our phone number is (301) 249-1142. Our email address is:

  • Marcelo Malheiros


    Old school without being crazy… there are 3 levels of Data Modeling: Conceptual, Logical and Physical… where a Physical Data Model (PDM) is DBMS specific and addresses all the features / capabilities available to the DBMS: different indexes, datatypes, file systems allocation, partitions…

    Data Design is responsible producing and deploying the PDM + defining all other operational features to setup the DB according to the enterprise needs: connections to network, cyber / DB security, high-availability + disaster recovery, backup/restore… the DB designer (mostly called Solution Data Architect nowadays) make the decisions and work DBA and other support team members to perform the setup…

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