Welcome, introductions and apologies

• Publication of ECL v1.2
• Discuss new requirements submitted by Michael

<< 125605004 |Fracture of bone| :
  363698007 |Finding site| = 23416004 |Structure of ulna|,
  116676008 |Associated morphology| = 72704001 |Fracture|,
  [0..0] (<<410662002 |Concept model attribute| MINUS 363698007 |Finding site| MINUS 16676008 |Associated morphology|) = *

Given knowledge of the concept model, this could be expressed (verbosely) as

<< 125605004 |Fracture of bone| :
  363698007 |Finding site| = 23416004 |Structure of ulna|,
  116676008 |Associated morphology| = 72704001 |Fracture|,
  [0..0] << 47429007 |Associated with| = *,
  [0..0] 263502005 |Clinical course| = *,
  [0..0] 246456000 |Episodicity| = *,
  [0..0] 419066007 |Finding informer| = *,
  [0..0] 418775008 |Finding method| = *,
  [0..0] 363713009 |Has interpretation| = *,
  [0..0] 363714003 |Interprets| = *,
  [0..0] 246454002 |Occurrence| = *,
  [0..0] 370135005 |Pathological process| = *,
  [0..0] 246112005 |Severity| = *,
  [0..0] 363705008 |Has definitional manifestation| = * 

 Is this requirement common enough for us to support the simplified form?

• Agreement was reached that this (i.e. allowing an expression constraint in the place of an attribute name) is a reasonable requirement that should be added to a future version of the ECL (v1.3)
• The detailed solution for this proposal needs to be worked through.
• Work is also needed to develop a set of invalid expression constraints for testing
• ECL v1.3 will be delayed until this work is complete

• WIP version available at http://snomed.org/-sts (i.e. STS stands for 'SNOMED Template Syntax')
• Final specification will be published at http://snomed.org/sts
• Review skeleton document at http://snomed.org/-sts
• SLPG to bring back issues, questions and suggestions for next week's meeting
• Linda will start drafting expression template examples