2016-11-09 - SLPG Meeting

Welcome, introductions and apologies

@Former user (Deleted)

Agenda review

@Former user (Deleted)

Review agenda for today's meeting

Compositional Grammar

@Former user (Deleted)

• Document migration to http://snomed.org/scg

• Feedback

  • numericValue = decimalValue / integerValue
    integerValue = (["-"/"+"] digitNonZero *digit ) / zero 
    decimalValue = integerValue "." 1*digit

  • How to represent -0.5

• Solution A (which allows "+0" and "-0.00")

  • numericValue = ["-"/"+"] (decimalValue / integerValue)
    integerValue = (digitNonZero *digit ) / zero
    decimalValue = integerValue "." 1*digit

• Solution B (which does not allow "+0" and "-0.00"

  • numericValue = decimalValue / integerValue
    integerValue = (["-"/"+"] digitNonZero *digit ) / zero
    decimalValue = (integerValue "." 1*digit) / (("-"/"+") zero "." *zero digitNonZero *digit)

• Outcome - The group decided to go with Solution A

• Requires parser update (http://apg.ihtsdotools.org) and github update (parser)

Expression Constraint Language v1.1

@Former user (Deleted)

• Published to http://snomed.org/ecl

• Announcement for ECL v1.1 made

• Patch required for concrete values (as above) - v1.1.1

• Requires parser update (http://apg.ihtsdotools.org) and github update (parser and examples)

URI Standard

@Former user (Deleted)

URIs for SNOMED syntaxes

URIs for SNOMED syntax instances

URIs for SNOMED syntax instances - with versioning

Special Characters (not for ".", "-", "_", "~")

Upgrade "SNOMED URI Standard" to "SNOMED IRI Standard"?

• URIs work with ASCII characters

• IRIs work with Unicode character sets

• Wikipedia (IRI)

  • The Internationalized Resource Identifier (IRI) was defined by the Internet Engineering Task Force (IETF) in 2005 as a new internet standard to extend upon the existing Uniform Resource Identifier (URI) scheme.^[1] The new standard was published in RFC 3987. While URIs are limited to a subset of the ASCII character set, IRIs may contain characters from the Universal Character Set (Unicode/ISO 10646), including Chinese or Japanese kanji, Korean, Cyrillic characters, and so forth.

Template Syntax

@Former user (Deleted)

Remove slots and replace slots

Replace slots - Type of replacement

Cardinality

Other Topics raised by Ed

Confirm next meeting date/time

@Former user (Deleted)

Next meeting to be held at 20:00 UTC on Wednesday 7th December