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Subject: RE: [ws-calendar-comment] Comment on PIM 1.0 CS01 09 October 2014
This is not a pre-judgment on the comment, because I sense that as well. ASHRAE scenarios not only frequently require times w/ or w/o time zones, but w or w/o DST as well. Business hours may need an opening at
8”00 in whatever the local time zone is, automatically adjusting for DST. As to availability, there are a number of ways to express “every Tuesday… There is Every 7 days starting with *this* Tuesday
There is weekly, occurring on *these* days of the week And so on. I have particularly considered the sort of scenarios you talk about for live energy models. A live energy model is grounded in hard dates, the projected energy model may well be based on days of the week with
no starting date indicated yet. Of course, this is a PIM, and it may be that these issues are best addressed in a PSM. A couple of us have been toying with a Minimal PSM (in XSD) that expresses the PIM UML model and might make allowances for
the flexibility you indicate. None of this is speaking ex cathedra. We, as a TC, have not discussed your comments. This is just a first reaction to your comment. Thanks for submitting it. tc “It is the theory that decides what can be observed." —Albert Einstein
From: Steve Ray (CMU) [mailto:steve.ray@west.cmu.edu]
Please consider adding a Date class (Date without time, perhaps with Time Zone) and a Time class (Time without date, perhaps with Time Zone) to the model. This would be useful in models [ASHRAE SPC201] that we are currently working with. - Steve Steven R. Ray, Ph.D. Distinguished Research Fellow Carnegie Mellon University NASA Research Park Building 23 (MS 23-11) P.O. Box 1 Email:
steve.ray@sv.cmu.edu Phone: (650) 587-3780 Cell: (202) 316-6481 Skype: steverayconsulting |
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