Page 114 - Big data - Concept and application for telecommunications

3 Big data - Concept and application for telecommunications

Figure 7-3 – An example of capturing provenance unit on data instance
The capturing of the provenance unit occurs simultaneously when Data C is stored in the data storage. Even
though all functions have input and output data, the information about the first input data and output data
are captured in a provenance unit with a process steps described by a sequence of functions.
NOTE 3 – In the Figure 7-3, Data A and B are input data, and Data C is output data.
Figure 7-4 shows an example of big data provenance information with a graph model. The provenance
information of Data d consists of provenance unit of Data c and provenance unit of Data d by aggregating
two units.

Figure 7-4 – An example of big data provenance information

7.3 Operations of provenance information

According to the change of the data state such as storing data, updating data and deleting data, a provenance
unit is recorded, kept, combined or deleted. Figure 7-5 shows the relationship between data state change
and provenance operations.

106 Static data – Data provenance, data formats and trust