Negative keywords - proposed text

["Stephen Green" <stephen.green@documentengineeringservices.com>]

Text (proposed) to be added to the end of Section 2.2.3 Optional
Statements: Prescription Level

"The negative keywords 'MUST NOT' and 'SHOULD NOT' are handled as
follows: With 'MUST NOT' the 'MUST' determines the prescription level,
in this case 'mandatory', and the 'NOT' is transferred to the
predicate. For example:

[statement 203] "A widget MUST NOT have a painted casing."

TA id: widget-TA203-1
Normative Source: specification statement 203
Target: widget
Predicate: [the widget] does not have a painted casing.
Prescription Level: mandatory

Similarly with 'SHOULD NOT':

[statement 204] "A widget SHOULD NOT have a plastic battery holder."

TA id: widget-TA204-1
Normative Source: specification statement 203
Target: widget
Predicate: [the widget] does not have a plastic battery holder.
Prescription Level: preferred"


-- 
Stephen D. Green

Document Engineering Services Ltd



http://www.biblegateway.com/passage/?search=matthew+22:37 .. and voice