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Re: [nm-wg] NMWG: hierarchy doc revisited



Looks nice.

I have a couple of minor comments on section 4.4, the textual representation of characteristics

(1) As this is its first mention, DAMED should also be spelled out: Discovery and Monitoring Event Descriptions

(2) Although the examples help, the format

<entity-type>.<characteristic>.<sub-characteristic>

would be clearer, I think, if there was a bit of added text:

"There may be zero or more sub-characteristics."

(3) Despite the tedium, I think the official DAMED name for each characteristic in the document should be added in an appendix

(4) I think that the capitalization conventions should be mentioned, e.g.:

"Names are all lowercase letters (ASCII [a-z]), except that the 1st letter of each word after the first is capitalized (ASCII [A-Z])."

- Dan

Bruce Lowekamp wrote:

As many of you are aware, we submitted the hierarchy document to the GFSC this past summer. We got some comments back recently, and two issues were raised:

- what type of document should this be
- normative text

After discussing the issues somewhat, we concluded that ultimately we want the hierarchy to be a recommendation. Obviously, as a nomenclature it isn't enough to implement measurement portability, but it is something that multiple schemas can be developed with, and sharing the nomenclature should facilitate usability. So eventually, we hope that other products beside the NMWG schema can say "we use this terminology." To have that statement mean anything, it needs to be a recommendation.

Therefore, we revised this as a "proposed recommendation." Essentially, this means that it is on the track to be an official GGF recommendation. At this point, what we are claiming is that we have general consensus that this makes a good recommendation, but need implementation experience and more review to ensure that it is correct and useful.

After making that decision, the normative text was easy.

The intro has the most revisions, and there are a variety of other sections that have normative text inserted. There is also a new section explaining the DAMED method of converting the hierarchy into dotted-decimal names. We may also want to include a list of mandatory and optional attributes for characteristics at a later point, but right now I don't think we have enough perspective to do that in a way that will be equally applicable to all measurements.

I would like to say that there is a version available with changebars, but there is not. I foolishly assumed that word would be able to "compare documents" at the end of the process, but apparently "diff" is beyond the grasp of microsoft programmers. Instead, both the old (00) and new (01) version are on the webpage. (http://www-didc.lbl.gov/NMWG/)

As the changes are relatively minor, I'm hoping we can resubmit this to the GFSC quickly. Therefore, I would like to ask for feedback by January 6. If we have not heard anything by then, or the comments are minor, we will resubmit to the GFSC at that point. If there is a significant amount of discussion, or if people feel more time is required, we'll postpone submission until consensus can be achieved.

Bruce Lowekamp