The Dependency Notes govern the required presence of an entity based on the
relationship of entities in the same collection directly under the same parent
structure. The entity relationships are:
a data segment or segment group based on the presence of other data
segments and segment groups within the same parent and hierarchical level in
the message,
a simple data element and a composite element based on the presence of
other elements within the same data segment, and
a component element based on the presence of other component
elements within the same composite element.
Dependency notes have:
an identifier that indicates the condition being applied
(D1, D2, D3, D4, D5, D6, D7), and
a list of position identifiers in parenthesis indicating the position
of the entity being affected by the condition. There must be at
least two position identifiers. The order of the position identifier is
dependent on the dependency and is crucial to the way it is interpreted.
An entity may be subjected to more than one dependency notes. For example,
D1(02,03)D3(0307).
The dependency notes are as follows:
D1 (ONE AND ONLY ONE).
Only one of the elements specified is allowed to be present.
For example . Assume that the element CDV below
has dependency note D1(02,03,05). This means that one of the
element at position 02 (DE 9434), 03 (DE 4513), or 05 (DE 7299) must be
present.
REF
ID
NAME
REQ
TYPE
MIN/MAX
01
9426
Code Value
M
AN
1/35
02
9434
Code Name
X
AN
1/70
03
4513
Maintenance Operation
X
AN
1/3
04
9453
Code Value Source
O
AN
1/3
05
7299
Requirement Designator
X
AN
1/3
D2 (ALL OR NONE).
Either all of the elements are to be present, or none can be present.
For example . Assume that the element CDV below
has dependency note D2(02,03,05). This means that all of the
element at position 02 (DE 9434), 03 (DE 4513), and 05 (DE 7299) must be
present, or none can be present.
REF
ID
NAME
REQ
TYPE
MIN/MAX
01
9426
Code Value
M
AN
1/35
02
9434
Code Name
X
AN
1/70
03
4513
Maintenance Operation
X
AN
1/3
04
9453
Code Value Source
O
AN
1/3
05
7299
Requirement Designator
X
AN
1/3
D3 (ONE OR MORE).
At least one element must be present.
For example . Assume that the element CDV below
has dependency note D3(02,03,05). This means that at least one
of the element at position 02 (DE 9434), 03 (DE 4513), or 05 (DE
7299) must be present.
REF
ID
NAME
REQ
TYPE
MIN/MAX
01
9426
Code Value
M
AN
1/35
02
9434
Code Name
X
AN
1/70
03
4513
Maintenance Operation
X
AN
1/3
04
9453
Code Value Source
O
AN
1/3
05
7299
Requirement Designator
X
AN
1/3
D4 (ONE OR NONE).
No more than one element can be present.
For example . Assume that the element CDV below
has dependency note D4(02,03,05). This means that only one of
the element at position 02 (DE 9434), 03 (DE 4513), or 05 (DE 7299) must
be present, or none must be present.
REF
ID
NAME
REQ
TYPE
MIN/MAX
01
9426
Code Value
M
AN
1/35
02
9434
Code Name
X
AN
1/70
03
4513
Maintenance Operation
X
AN
1/3
04
9453
Code Value Source
O
AN
1/3
05
7299
Requirement Designator
X
AN
1/3
D5 (IF FIRST THEN ALL).
If the first element is present then the rest of the elements must be
present. However, elements other than the first element may be present if
the first element is not present.
For example . Assume that the element CDV below
has dependency note D5(02,03,05). This means that if the
first element at position 02 (DE 9434) is present, then the remaining
elements at position 03 (DE 4513) and 05 (DE 7299) must also be
present. However, elements at position 03 and 05 can be present if the
first element 02 is not present.
REF
ID
NAME
REQ
TYPE
MIN/MAX
01
9426
Code Value
M
AN
1/35
02
9434
Code Name
X
AN
1/70
03
4513
Maintenance Operation
X
AN
1/3
04
9453
Code Value Source
O
AN
1/3
05
7299
Requirement Designator
X
AN
1/3
D6 (IF FIRST THEN AT LEAST ONE MORE).
If the first element is present then at least one more of the remaining
elements must be present. However, if elements other than the first is
present, the first element need not be present.
For example . Assume that the element CDV below
has dependency note D6(02,03,05). This means that if the
first element at position 02 (DE 9434) is present, then at least one more
of the remaining elements at position 03 (DE 4513) or 05 (DE 7299) must be
present, or all remaining elements may be present. However, if the
remaining elements at position 03 and 05 are present, the first element 02 need
not be present.
REF
ID
NAME
REQ
TYPE
MIN/MAX
01
9426
Code Value
M
AN
1/35
02
9434
Code Name
X
AN
1/70
03
4513
Maintenance Operation
X
AN
1/3
04
9453
Code Value Source
O
AN
1/3
05
7299
Requirement Designator
X
AN
1/3
D7 (IF FIRST THEN NONE OF THE OTHERS).
If the first element is present then none of the remaining elements can be
present.
For example . Assume that the element CDV below
has dependency note D7(02,03,05). This means that if the
first element at position 02 (DE 9434) is present, then the remaining
elements at position 03 (DE 4513) and 05 (DE 7299) must not be present.
