Choose Index below for a list of all words and phrases defined in this glossary.


index | Index

Replication - definitions

Replication - The copying of data from one data store or site to another. Typically, replication takes place to improve service response times and availability. Replication is frequently employed as part of a backup and recovery strategy.

[Category=Data Governance ]

Source: The Data Governance Institute, 22 December 2009 10:16:16, External

These advertisers support this free service

Replication - The physical copying of data from one database to another.

In data warehousing replication takes place as data is moved from the on-line transaction processing system into the data warehouse. Replication also takes place if one or more data marts is being populated with data from the data warehouse.

There are several software tools that have been developed to handle replication into a data warehouse. These tools give the ability to transfer data out of and into a variety of database management systems. Many of these tools also provide data transformation and Data Cleansing_ capabilities.

Heterogeneous replication occurs when the source and the target database are not the same database management system (DBMS).

Data migration is the movement of data from one environment to another - as happens when data is brought from a legacy system into a data warehouse.

Bi-directional replication is the ability to copy data in both directions between two databases.

In changed data capture only the data that has been changed since the last replication is copied.

In synchronization all the data stored in the database is replicated.

[Category=Data Warehousing ]

Source: SDG Computing Inc., 11 May 2010 09:38:27, SDG Computing, now offline

Replication - The process of keeping a copy of data, either through shadowing or caching.

[Category=Data Warehousing ]

Source:, 10 August 2010 08:52:16, External

Replication - Replication occurs when an experimental treatment is set up and conducted more than once. If you collect two data points at each treatment, you have two replications. In general, plan on making between two and five replications for each treatment.

Replication is a repeat of the experimental run such that the repeated run only occurs after a full breakdown of 'SET UP' and 'SET POINTS'. This requires an additional 'SET UP' and the establishment of'SET POINTS' even if the prior experimental run was with these exact 'SET POINTS'.

On the contrary Repetition is making a repeat of the experimental run and taking an immediate additional sample without breaking down the 'SET UP' or changing the 'SET POINT'

Replication is done to reduce the impact of the inherent variation in the process, whereas repetition reflects the uncontrolled variability in the measurements.

In other words Repetition is equivalent to Repeatability, whereas Replication is equivalent to Reproducibility.

[Category=Data Quality ]

Source: iSixSigma, 20 February 2011 11:22:54, External

Mirroring/Replication is the automated process of writing data to two drives simultaneously. Mirroring is used to provide redundancy. If one drive fails, the redundant drive will continue to store the data and allow access to it. The failed drive can then be replaced and the drive set can be re-mirrored (RAID Level 1).

[Category=Geospatial ]

Recall, 02 September 2011 12:01:52, External

replication - Replication (pronounced rehp-lih-KA-shun) is the process of making a replica (a copy) of something. A replication (noun) is a copy. The term is used in fields as varied as microbiology (cell replication), knitwear (replication of knitting patterns), and information distribution (CD-ROM replication).

On the Internet, a Web site that has been replicated in its entirety and put on another site is called a mirror site.

Using the groupware product, Lotus Notes, replication is the periodic electronic refreshing (copying) of a database from one computer server to another so that all users in the Notes network constantly share the same level of information.

[Category=Data Management ]

Source:, 05 September 2013 09:46:34, External  





Data Quality Glossary.  A free resource from GRC Data Intelligence. For comments, questions or feedback: