indicates whether the duration and workload represent the sum up of duration and
workload of all referenced procedure from the current Service bulletin. The attribute
can have one of the following values:
- "1" - Yes, the duration and workload
represent the sum up of duration and workload of all referenced procedure from the
current Service bulletin
- "0" - No, the duration and workload do not represent the
sum up of duration and workload of all referenced procedure from the current Service
bulletin