OSI PICS Manual

CCITT X.400: P2 for MHS
Tandem OSI PICS Manual–135046
16-8
A.4.4 Permitted Range of Value/Value Supported
Columns
In the PICS proforma tables, every leading item marked “m” should be supported by the
IUT. Sub-items marked “m” should be supported if the corresponding leading feature is
supported by the IUT.
All entries within the PICS proforma shall be made in ink. Alterations to such entries
shall be made by crossing out, not erasing nor making the original entry illegible, and
writing the new entry alongside. All such alterations to records shall be initialled by the
staff making them.
A.4.4 Permitted Range of Value/Value Supported Columns
In the column marked “PERMIT. RANGE OF VALUES,” the maximum length and
maximum number of occurrences have been stated according to the standard. For each
line for which an entry in this column is made, the constraints or supported values
should be indicated in the “VALUES SUPPORTED” column.
The minimum and maximum lengths and numbers of occurrences shall be entered for
originator.
The maximum length and number of occurrences shall be entered for reception.
A.4.5 Note Column
The “note” column has to be read as follows:
A.4.6 Predicate Definitions
If the classification of an element of service or a protocol element is subject to a
predicate, support of the item is mandatory if the related predicate is true. Otherwise
support of the item is optional.
Within that annex predicates are defined as follows:
px = “Item_number”.Y or px = S.Y.Z where
Examples:
p19 = S.O.8 means that p19 is true if the Importance Indication element of service is
supported.
Symbol Meaning
Notexx Refers to Note xx:
pxx Refers to predicate xx;
#yy Refers to section A.6.6.4.yy.
d A default value is defined in the recommendation. When absent in the PDU, both
Originator and Recipient shall interpret it as having the default value specified in the
Recommendation.
Symbol Meaning
S (Service) takes the value A.6.3
Y Takes the values “O” for originator or “R” for recipient
Z Is the number of the element of service in A.6.3