White Papers
6 Version 1.0.2
3.1 135
Conditional – Indicates requirements to be followed strictly in order to conform to the document when the 136
specified conditions are met. 137
3.2 138
Mandatory – Indicates requirements to be followed strictly in order to conform to the document and from 139
which no deviation is permitted. 140
3.3 141
May – Indicates a course of action permissible within the limits of the document. 142
3.4 143
Optional – Indicates a course of action permissible within the limits of the document. 144
3.5 145
can – Used for statements of possibility and capability, whether material, physical, or causal. 146
3.6 147
cannot – Used for statements of possibility and capability, whether material, physical, or causal. 148
3.7 149
need not – Indicates a course of action permissible within the limits of the document. 150
3.8 151
referencing profile – Indicates a profile that owns the definition of this class and can include a reference 152
to this profile in its “Related Profiles” table. 153
3.9 154
shall – Indicates requirements to be followed strictly in order to conform to the document and from which 155
no deviation is permitted. 156