Issue 18253: Time intervals defined by duration (date-time-ftf) Source: NIST (Mr. Edward J. Barkmeyer, edbark(at)nist.gov) Nature: Uncategorized Issue Severity: Summary: In DTV Beta-2,Clause 8.2.3, there are two verb concepts: time interval1 is duration before time interval2 time interval1 is duration after time interval2 From the alternative form: "duration before/after time interval2", it seems clear that the intent of these verb concepts is to allow a time interval to be defined by a reference time interval and a duration, e.g., the two weeks before the jump-off date, the day after the meeting (day). Each of these denotes exactly one time interval. But the Definitions mean that the verb concepts simply state the duration between two time intervals. This may be useful when the intent is to state the duration between two events, but it is not the meaning of 'duration before time interval', and it cannot be used to define a time interval. Either these verb concepts should be defined to be the ones intended by the alternative forms, or the alternative forms should be separate verb concepts. Resolution: Revised Text: Actions taken: November 8, 2012: received issue Discussion: End of Annotations:===== te: Thu, 8 Nov 2012 16:54:57 -0500 From: Ed Barkmeyer Reply-To: "Barkmeyer, Edward J" , Organization: NIST User-Agent: Thunderbird 2.0.0.23 (Windows/20090812) To: "issues@omg.org" Subject: new DTV issue: Time intervals defined by duration X-NISTMEL-MailScanner-Information: Please contact postmaster@mel.nist.gov for more information X-NISTMEL-MailScanner-ID: qA8Lt2ax002947 X-NISTMEL-MailScanner: Found to be clean X-NISTMEL-MailScanner-SpamCheck: X-NISTMEL-MailScanner-From: edbark@nist.gov X-NISTMEL-MailScanner-Watermark: 1353016505.09086@sMCPFHdRIfngeSI6yqIv0Q X-Spam-Status: No Specification: DTV Version: Beta-2 Title: Time intervals defined by duration Source: Ed Barkmeyer, NIST, edbark@nist.gov' Summary: In DTV Beta-2,Clause 8.2.3, there are two verb concepts: time interval1 is duration before time interval2 time interval1 is duration after time interval2 From the alternative form: "duration before/after time interval2", it seems clear that the intent of these verb concepts is to allow a time interval to be defined by a reference time interval and a duration, e.g., the two weeks before the jump-off date, the day after the meeting (day). Each of these denotes exactly one time interval. But the Definitions mean that the verb concepts simply state the duration between two time intervals. This may be useful when the intent is to state the duration between two events, but it is not the meaning of 'duration before time interval', and it cannot be used to define a time interval. Either these verb concepts should be defined to be the ones intended by the alternative forms, or the alternative forms should be separate verb concepts. -- Edward J. Barkmeyer Email: edbark@nist.gov National Institute of Standards & Technology Systems Integration Division, Engineering Laboratory 100 Bureau Drive, Stop 8263 Tel: +1 301-975-3528 Gaithersburg, MD 20899-8263 Cel: +1 240-672-5800