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Subject: Re: [oslc-promcode] Question on oslc:occurs


Project:actualStartDate occurrence should be specified as Zero-or-one. In 
RDF, the normal way to indicate a "null" value is to omit the property. 
There is usually no special "null" value.
Arthur Ryman
Chief Data Officer
SWG | Rational
905.413.3077 (phone) | 416.939.5063 (cell)
IBM InterConnect 2015

From:   Kazuhiro Funakoshi <k-f@bk.jp.nec.com>
To:     Arthur Ryman/Toronto/IBM@IBMCA
Cc:     "oslc-promcode@lists.oasis-open.org" 
Date:   12/23/2014 08:42 PM
Subject:        [oslc-promcode] Question on oslc:occurs
Sent by:        <oslc-promcode@lists.oasis-open.org>


We had a local briefing on last Friday. During the session, we found a new
question about resource shape definition.

> 6.18 oslc:occurs Property
> oslc:occurs is used to specify the number of times that the defined
property may occur. The value of this property MUST be one of the 

In my understanding, this oslc:occurs does not specifies the value of
property whether null-able but number of the property. Therefore, in our
shape document, Project:actualStartDate should be oslc:exactly-one but
null-able, since we think it is mandatory but still undecided at the
beginning of the project. Is it correct?

Best regards,

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