D

Data Matching

July 24, 2012

See also: Data Integration, Blind  Matching

CIMM DEFINITION: Comparison of two or more datasets where each dataset maintains its individuality and uniqueness.

2: “Data matching is most effective for measuring ROI, correlating specific household tuning exposure with household consumer purchasing behavior from within the same observed household. Household matching (i.e. shopper panels and STB tuning) is de facto the new single source and yields the highest level of accountability for much more reasonable costs. Using STB and other consumer databases afford sample sizes that allow for brand analysis which is impossible using traditional single-source panels.” (Source: Nielsen)

Data Normalization

July 24, 2012

See also: Data Integration

CIMM DEFINITION: Where there are two or more disparate data points within a data set, combining them in such as way that maintains data integrity and accuracy while improving usability.

2: The process of synthesizing the unique attributes of data. Commonly used in database construction to minimize duplication and promote data integrity. (Source: Nielsen)

Data Outage

July 24, 2012

See also: Outage

CIMM DEFINITION: A natural or man made occurrence that can cause a gap or lapse in the signal or in data / video transmission. Often unexpected, can vary in time and length.

2: A period of time in which no data was collected by a provider due to environmental conditions including fire, power outages or system failures. (Source: Nielsen)

NOTE – Set-Top Box data collection often consists of a chain of transmission steps, from collection engine on the STB to collection server to aggregation servers and ultimately to the processors of the data, with possible hops through load balancers and proxy servers along the way. At each step in the transmission chain, either the server/computer or the network may fail. To provide avoid any gaps or data outage, multi-tier fault tolerance mechanism must be deployed including sufficient data caching at every error-detecting link in the transmission chain. (Source: FourthWall Media)

Data Packets

July 24, 2012

CIMM DEFINITION: A formatted basic unit of data or communication over a digital network (Source: About.com)

Data Port

July 24, 2012

CIMM DEFINITION: A physical interface on a Set-Top Box or a computer or another device through which information, data, content and other signals travel.

NOTE – Different data ports on different boxes.

Data Quality

July 24, 2012

CIMM DEFINITION: A general term regarding the overall efficacy and accuracy of a data set.

Data Stream

July 24, 2012

See also: Clickstream

CIMM DEFINITION: A sequence of digitally-encoded coherent signals (packets of data or data packets) used to transmit or receive information. (Source: Wikipedia)

2: Stream of events logged on a STB. (Source: TIVO)

CIMM DEFINITION: A process by which additional information is appended to tuning event records. It is paramount that this process be executed in a manner that protects the identity of the underlying household. (Source: MRC)

Data Type

July 24, 2012

CIMM DEFINITION: The various data that are delivered via the Set-Top Box or other sources like the television remote. Examples include: Linear, DVR, VOD, ELECTRONIC PROGRAM GUIDE, ITV, Remote Control.

2: One type of viewer-generated activity measured on a Set-Top Box, including: keystream data (i.e., button pushes via a remote), interactive data (i.e., response measurement from interactive applications and ad enhancements), linear viewing data (i.e., channel changes), and explicit interest data (i.e., information provided by the viewer to an interactive application, such as stock symbols, favorite sports team, or yellow pages search terms). (Source: FourthWall Media)

NOTE – MSO, Satco, Telco, remote are all data sources that create data types.

NOTE – Other types of data are third party data sources that are used on segmentation. (Source: Invidi)

NOTE – No remote data is available, except on TIVO, but may be available through more advanced boxes and not through legacy boxes. (Source: FouthWall Media)

Data Warehousing

July 24, 2012

CIMM DEFINITION: Data storage in large scale facilities, such as a bonded third party data backup facility.

NOTE – “Both the EBIF collection engine and collection server of FourthWall Media’s Event Stream Collector, deployed in MSOs like Charter, cache up to 7 days worth of second-by-second measurement data (linear channels, keystream, explicit interests, and interactive) in the event of a network or server outage preventing transmission of the data to the data warehouse. This applies to all STBs, including legacy STBs.” (Source: FourthWall Media)