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Technical Glossary Terms - D

The Letter D

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Find below a glossary of terms and definitions that begin with the letter D as it relates to technical definitions.

Term Description
Dashboard Dashboards are information compressed as figures on one page, that provide a quick overview of the enterprise.
Database A collection of data, usually in the form of tables or files, under the control of a database management system.
Data Collection System The Web environment that is used to collect the IPEDS data.
Data Definition  The specification of a data element to be maintained. The specification includes datatype, size, and rules about processing: for example, derivation and validation. 
Data Dictionary  A part of a database that holds definitions of data elements, such as tables, columns, and views.
Data Governance Data Governance is the establishment and maintenance of a structured process to transform data into valuable and usable of information permanently.
Data Mart A data warehouse data class organized for a business functional area or department. The database contains data summarized at multiple levels of granularity and may be desinged using relational or multidimensional database structures. 
Data Partitioning A technique to improve application performance or security by splitting tables across multiple locations.
Data Profiling The use of query and reporting tools to explore the content and relationships of source system data.
Data Replication The copying of data to and from sites to improve local service response times and availability; frequently employed as part of a backup and recovery strategy.
Data Quality Data quality determines the reliability of data. High-quality data needs to be complete, accurate, available and timely.
Data Source An operational system, third-party organization, or external system that provides the data to support the information requirements of the client. The data source is accessed during the data acquisition process.
Data Stewardship An organizational function to address data definitions, consistency, integration, quality, and knowledge in an enterprise.
Data Transfer The physical movement of data between applications, perhaps across sites.
Data Transformation The process of redefining data based on some predefined rules. The values are redfined based on a specific formula or technique.
Data Validation The process of ensuring correct data based on error and exception handling rules. This process directly impacts data integrity.
Data Warehouse An enterprise structured repository of subject-oriented, time-variant, historical data used for information retrieval and decision support. The data warehouse stores atomic and summary data. The data warehouse is the source data stored in the data marts.
Decision Support Systems (DSS) An application primarily used to comsolidate, summarize, or transform transaction data to support analytical reporting and trend analysis.
De-Normalization A database design activity that restructures a database by introducing derived data, replicated data, and/or repeating data to tune an application system and increase performance.
Dependency The relationship of one task to another where the start or end date of the second task (successor) is constrained by the start or end date of the first (predecessor).
Derived Columns A value derived by some algorithm from the values of other columns.
Dimension Table A dimension table stores attributes, or dimensions, that describe the objects in a fact table.
Drill Across Data analysis across dimensions.