Your "Crew Schedule" should mean "published roster?" That's exactly what the company has been saying forever. Therefore, your "real time roster" is not subject to ANY of the provisions about what is published, planned, supposed to happen. See? Obviously, the "real time roster" is a crew schedule too: An updated one.
That was by design, CAD371 only has 2 types of duty, scheduled and standby.
CAD371 says The words ‘scheduled’, ‘planned’, ‘rostered’ are used interchangeably in this document and shall be construed as meaning what was intended to happen. That is the published roster. The real time roster is not what was planned, it is the historical record of what happened.
If it is not on the published roster, it falls under the CAD371 definition of standby. "A period during which an operator places constraints on a crew member who would otherwise be off duty". It also says "The time of start, end and nature of the standby duty must be defined and notified to all Flight Crew members". That is the real time roster.
If the CAD371 rules for any duty that falls under the CAD "standby" definition (i.e. any roster change, any reserve callout, any change made at dispatch, any O day) were applied correctly, it would go a long way to preventing fatigue.
There is absolutely no incentive to maintain the published roster duties, and published start/stop times. You can finished duty at 8pm, have a published duty at at 3pm next day. Call 8929, next day duty changed to reserve start at 6am. You had already counted on that morning in your rest plan to catch up on sleep.
The abuse the trainers, freighters pilots, and airbus pilots see every month in terms of roster changes is shameful. What is more disgusting is the number of missed duties every month crews get because they cannot keep up with the changes.