🔎Glossary

Term	Definition	Context
Accessibility	the degree to which data are accessible	Data Quality
Accuracy	the requirement that values match the reality within an acceptable level of approximation	Data Quality
Actuality	see Timeliness	Data Quality
Attribute	chracteristic (also called property, dimension) of an (Conceptual) Entity	Data Modelling
Audit Trail	records/register with the actions performed on data within given scope (e.g. Data Migration)	Data Management
Auditability	the requirement that values are traced back to the source/origin	Data Quality
Business Rule	rule established by the business in association with one or more Attributes or Entities	Data Management
Completeness	the requirement that values are mandatory (only non-null values are allowed)	Data Quality
Compliance	the requirement that data are stored, processed or accessed according to internal/external laws, regulation, standards, procedures, etc.	Data Management
Conceptual Entity	atomic structure within a Conceptual Entity Model defined by a set of Attributes	Data Modelling
Conceptual Entity Model	type of Data Model in which atomic entities are derived and grouped based on their conceptual meaning	Data Modelling
Conceptual Model	representation of concepts and relation between them	Data Management
Conceptual Schema	see Conceptual Model	Data Management
Conformity	the requirement that values are captured and represented in a given format/pattern	Data Quality
Consistency	the requirement that values match a predefined list of values, data dictionary, ontology or similar representation form	Data Quality
Correctedness	the requirements that values are accurate and precise	Data Quality
Currency	see Timeliness	Data Quality
Data Architect	person responsible for the design of the whole data infrastructure within an organisation	Data Management
Data Auditing	the processes of performing a data audit in order to determine the adherence to internal procedures, reglementations in what concerns the use of data	Data Management
Data Classification	the process of defining/identifying categories and assigning data to them based on given/identified common data characteristics	Data Management
Data Cleaning	the process in which corrupt or inaccurate data are detected and corrected or removed from a data source.	Data Management
Data Cleansing	see Data Cleaning	Data Management
Data Collection	the process that ensures that needed data are identified, retrieved and assessed for a given purpose	Data Management
Data Compression	the encoding of data targetting to decrease the space occupised by the data	Data Management
Data Consolidation	the process of collecting data from various sources within a common repository and structure	Data Management
Data Conversion	the process of transferring the data between two data models/structures	Data Management
Data Conversion Rule	rule that represents how one or more source attributes are mapped to one or more target attributes	Data Conversion
Data Custodian	person responsible for the safe custody, transport, storage of data and implementation of Business Rules [1]	Data Management
Data Decoding	as oposed to data encoding, the conversion of data from encoded to initial form	Data Management
Data Decompression	as oposed to data compression the decoding of data from encoded to initial form	Data Management
Data Definition Language	computer language used to define or modify data structures within data repositories	Data Modelling
Data Diagram	graphical representation of the data entities and relation between them	Data Modelling
Data Discovery	the process of identifying and understanding data and the relations between data	Data Management
Data Domain	all unique values a Data Element may contain	Data Management
Data Element	atomic unit of data that has precise meaning	Data Management
Data Encoding	the conversion of data from one form of representation to another	Data Management
Data Enhancement	see Data Enrichment	Data Management
Data Enrichment	the process in which missing data are added, formats changed in order to address specific requirements	Data Management
Data Export	the process of exporting data from a information system	Data Management
Data Freeze	the prevention of updating the data after a given point in time	Data Management
Data Gap Analysis	the process of identifying the mistmathes between different data repositories	Data Management
Data Governance	set of processes that target the respponsibility and accountability of data and their quality through the whole Data Life Cycle	Data Management
Data Import	the process of loading data in an information system	Data Management
Data Life Cycle	the lifespan of data from data acuisition, through processing and handling, until their distruction	Data Management
Data linkage	the merging and analysis of two or more distinct Data Sets, typically from different domains	Data Management
Data Manipulation Language	computer language used to perform create, read, update, delete operation on a data repository	Data Modelling
Data Mapping	the process of creating attribute mappings between distinct data models	Data Management
Data Matching	the process of matching records from distinct data repositories	Data Management
Data Migration	the process of transferring the data between two or more information systems.	Data Management
Data Mining	the process of identifying/deriving new patterns or knowledge from data	Data Management
Data Modelling	the proces of analyzing data for the identification of entities, their attributes and the relations between entities, and represent them in a Data Diagram or Data Definition Language	Data Management
Data Navigation	the movement through data sets following parent/child or similar associations	Data Management
Data Owner	person responsible and accountable for life-cycle of a given data set	Data Management
Data Processing	the process or action of organizing and manipulating data, typically with the help of application	Data Management
Data Profiling	the process in which the source data are analyzed from the point of view of existing requirements in order to understand the data, their characteristics and constraints.	Data Management
Data Protection	the requirement that data are not processed without the knowledge and consent of their owners	Data Quality
Data Quality	perception, measurement of data fintness for intended use	Data Management
Data Quality Assessment	the process of evaluating the quality of data based on a predefined set of rules[2]	Data Quality
Data Quality Metric	measurement of a Data Quality Rule	Data Quality
Data Quality Rule	business rule on which quality of data is evaludated against	Data Quality
Data Reporting	the process of presenting data in an accessible form to users	Data Management
Data Repository	storage location within a electronic or solid storage device(s) where data are stored and may be retrieved	Data Management
Data Retrieval	the process of extracting data from a data repository	Data Management
Data Security	the requirement that data is kept safe from corruption and unauthorized access	Data Quality
Data Selection	the process of defining the appropriate source and records	Data Management
Data Sizing	the process of estimating the size occuppied/needed by data	Data Management
Data Stakeholder	person who affects or is affected by a given set of data	Data Management
Data Standardization	the process of developing and implementing technical standards for data definition	Data Management
Data Steward	person responsible for maintaining the records in Metadata Registry	Data Management
Data Stewardship	the process that ensures that data are unambigously defined	Data Management
Data Store	permanent data repository	Data Management
Data Store Owner	person responsible and accountable for a given Data Store	Data Management
Data Structure	particular way of organiying and storring data	Data Management
Data Synchronization	the process of comparing and reconciliating different data repositories so they can contain the same data	Data Management
Data Transformation	the physical implementation of a Data Conversion Rule	Data Management
Data Transitional Rule	temporary rule put in place in order to handle the affects of transition between distinct steps of a process (e.g. Data Migration)	Data Management
Data Validation	the process of ensuring that data were processed as expected	Data Management
Data Visualization	the graphical display of data and their characteristics in order to facilitate their understanding	Data Management
Metadata	Data about/describing data	Data Management
Metadata Registry	the global repository in which metadata definitions are stored and controlled	Data Management
Persistance	the requirement that the data outlives the process that created it	Data Quality
Precision	the requirement that values remain unchanged when measured under the same conditiones	Data Quality
Record linkage	task of finding the records in a data repository that refer to the same Entity across different data repositories [1]	Data Management
Redundancy	the requirement that values are not stored in multiple places (tables, databases) unless necessary (typically correlated with poor design)	Data Quality
Referential Integrity	the requirement that the each non-null value of a foreign key must match the value of a primary key	Data Quality
Reliability	the requirement that values are accurate	Data Quality
Semantic integrity	the requirement that values keep their meaning across different repositories	Data Quality
Timeliness	the requirement that values are up to date (actual)	Data Quality
Uniqueness	the requirement that values or entities are captured, represented and referenced uniquely across the domain	Data Quality
Validity	the requirement that values are within accepted/reasonable range of values (maximum, minimum)	Data Quality