Page 81 - Big data - Concept and application for telecommunications

2 Big data - Concept and application for telecommunications 2

NOTE – Figure 7-7 identifies reused activities from [ITU-T Y.3600] as well as new activities needed to support
big data exchange.

7.2.1 Data provider
The data provider (DP) roles consist of two-sub-roles, data supplier and data broker (see clause 6.2.1 in
[ITU-T Y.3600]).
7.2.1.1 Data supplier

In case of direct exchange, data supplier sub-role is performed by the data source entity while in intermediary
exchange data supplier sub-role can be performed by the intermediator.
The existing activities of data supplier in [ITU-T Y.3600] for big data exchange are provided:
– generate data;
– create metadata (information);

– publish metadata (information).
The additional activities of data supplier for big data exchange include:
– deliver data: transfer data.
NOTE – Delivery methods depend on data transfer context. DP:data supplier can send data in real-time or by
batch updates. Also, DP:data supplier can use synchronous data transfer rather than asynchronous data
transfer for time sensitive service.
7.2.1.2 Data broker

In case of a direct exchange pattern, the data broker sub-role is performed by the data source entity while in
case of an intermediary exchange pattern, the data broker sub-role is performed by the intermediator. Also,
data broker can be located outside of the data source and data target.

Activities of data broker defined in [ITU-T Y.3600] are reused as follows for big data exchange:
– register data;
NOTE 1 – This activity is renamed from "providing a meta-information registry to the data supplier for
publishing their data sources" in [ITU-T Y.3600].
– find data source;
NOTE 2 – This activity is renamed from "finding on-line open-data sources and registering corresponding
meta-information" in [ITU-T Y.3600].
– provide service catalogue.
NOTE 3 – This activity is renamed from "providing a service catalogue to the big data service provider for
searching usable data" in [ITU-T Y.3600].
NOTE 4 – A service catalogue includes "data catalogue".
New activities as compared to data broker activities in [ITU-T Y.3600] include:

– categorize data: process of organizing data into categories for its effective and efficient use;
NOTE 5 – It supports data classification either by common terminology and taxonomy, as well as application
fields.

– match data: match and recommend data to a big data service provider based on multiple criteria.
7.2.2 Big data service provider

In case of direct exchange, big data service provider is performed by the data source and the data target
entities. While in case of an intermediary pattern, the big data service provider is performed by the data
source, the intermediator, and the data target.

Moving data – Data exchange and data flow 73