MUWS parts 1 and 2 and MOWS comments

[Fred Maciel <Fred.Maciel@hds.com>]

Hi,

     Here are Hitachi's comments on MUWS and MOWS.

(1) There are a few of inconsistencies in the metrics:

(1a) The MOWS spec specifies in lines 614-618 which attributes must be
reported for each kind of metric, which conflicts with the MUWS spec (part
2, lines 836-849). For instance, for SinceReset metrics, MOWS says that
duration MUST NOT be reported and MUWS says that it MUST. I presume that
MUWS is the correct one (and where this text should be) and my suggestion is
to erase the paragraph in the MOWS spec.

(1b) If I recall correctly, Heather said that we can discover the kind of
metric (Interval, PointInTime, SinceReset) from ResetAt and Duration, and we
decided to clarify it in the spec (again, part 2, lines 836-849). However,
it's still not the case now: whether ResetAt must be included or not for
Interval and SinceReset is not specified, and Interval and SinceReset can't
be differentiated. Suggestion: ResetAt MUST be included in SinceReset
metrics, and MUST NOT be included in Interval ones. But...

(1c) ... ResetAt in part 2, lines 787-792 is basically saying that ResetAt
is included if and only if the metric is resettable. Which means that we
cannot say that "ResetAt MUST be included in SinceReset metrics" above for a
SinceReset metric that's not resettable. We need to discuss whether to adopt
(1b) or (1c) -- I prefer (1b).

(2) We are using http://schemas.xmlsoap.org/ws/2004/08/addressing for
WS-Addressing, but the June release of WSRF (which we are also using) uses
http://schemas.xmlsoap.org/ws/2003/03/addressing.

(3) In MUWS part 2 it's not clear the difference between Duration and
CalculationInterval. Perhaps Duration is when the values were collected to
calculate the metric, and CalculationInterval is the period in which the
metric value is updated?

(4) Is there a clear definition in MUWS on how to put the WSDM Event Format
on a WSN Notification Message?

(5) MUWS part 1, lines 468 and 470: these are elements, not attributes.

** Mostly nits below **

(6) Part 2, line 872: instead of "MUST include zero or more", how about "MAY
include one or more"? ("MUST include zero" is kinda strange...).

(7) Part 2, line 449 and 450: include this sentence in the previous one (it
lacks a verb, to begin with).

(8) Part 2, line 1042: Refrence -> Reference

(9) Part 1, line 744: XX -> 12

Regards,

Fred Maciel.