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Subject: UML for Position Facet and for CtsStreams

I've attached two PNGs (and included inline) for today's discussion. The working text (wd09-WIP2) is attached as a PDF.

I've included the EiPayloads PNG for discussion of the appropriateness and necessity for use of CtsStreams.

Our first UML diagram is the definition of CtsStream, a profiled WS-Calendar Stream that carries a long value and the number of decimal digits. The concrete StreamBase (called CtsStream) includes the stream interval duration and the start time (streamStart) for the concrete stream. The number of decimal digits is in the StreamBase.

The individual StreamIntervals contain the payload (long) and a possibly-option UID. I've used the ordered attribute for the streamIntervals, which could be implemented as an array or ordered list.

Using the CtsStream in the Position Facet payloads we get (only change is EiReplyPosition):

Recall that the boundingInterval in the EiRequestPosition payload gives the interval of interest; the return values are those that fit into the boundingInterval (as a closed interval - an appropriate response are intervals that fit entirely inside the boundingInterval, e.g. those intervals of the product/market granularity such that

ÂÂÂ boundingInterval.dtStart >= start of response interval // response interval starts at the same time as boundingInterval or later


ÂÂÂ boundingInterval.dtStart + boundingInterval.duration >= end of response intervalÂÂÂ // response interval ends at the same time as boundingInterval or before




William CoxÂ

Email: wtcox@CoxSoftwareArchitects.comÂ

Web: http://www.CoxSoftwareArchitects.comÂ

+1 862 485 3696 mobile

Attachment: CtsStream Definition.png
Description: PNG image

Attachment: ei-cts-v1.0-wd09-WIP02-Position Facet Only 20210909.pdf
Description: Adobe PDF document

Attachment: Position Facet Payloads.png
Description: PNG image

Attachment: Position Facet and CtsStream.png
Description: PNG image

Attachment: EiPayloads.png
Description: PNG image

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