Fig. 15.1.12 What about detailed and summary data?However, when summary data are held in the system of record, there is an extra,
compulsory component not seen elsewhere. When summary data are held in the system
of record, documentation of how the summary was made must be included as well. The
documentation of the summarization needs to include at least the following:
What data were included in the summarization?
What data were excluded from the summarization?
When was the summarization made?
What formula was used for the summarization?
What program(s) made the summarization?
Where were the results of the summarization sent?Fig. 15.1.13 shows that summarization in the system of record requires special
documentation.
Chapter 15.1: The System of Record