Each unit is different and its list will also be different. The rationale should be documented on the general file as to why an activity that was identified on another list was not selected. Definitely, the system is flexible and if an activity suddenly becomes a problem and requires greater attention than anticipated, you can either drop or add to what you have selected. The employee responsible for the selected activity physically examines a reasonable sample of the population size of that activity and compares it to the standard of measurement or the review guide to ascertain the degree of compliance of the activity. This is done in accordance to a pre-determined schedule.
All work is recorded in the working papers on the appropriate activity file.
The reviewer is responsible to ensure that the guide is up to date and relevant. Any deficiencies or best practices identified are recorded on the file. The reviewer then takes the observations to the unit commander for the required action. There are several sampling methods available, one can be found on page 23 of the Management Review Handbook and another is available in the OSR review guide. Through several sources.