Segment
No
Status
Max. Occ.
Segment
   
 
UNA
1
C
1
Service string advice
 
UNB
2
M
1
Interchange header
 
   
Drawing Administration Message Heading Section
   
 
UNH
3
M
1
Message header
 
BGM
4
M
1
Beginning of message
 
DTM
5
M
5
Date/time/period
 
SG1
    
M
10
RFF
 
RFF
6
M
1
Reference
 
SG2
    
M
999
NAD-SG4
 
NAD
7
M
1
Name and address
 
SG4
    
C
10
CTA-COM
 
CTA
8
M
1
Contact information
 
COM
9
C
5
Communication contact
 
   
Drawing Administration Message Detail Section
   
 
SG5
    
C
99
EFI-CED-RFF-DTM-QTY
 
EFI
10
M
1
External file link identification
 
CED
11
M
10
Computer environment details
 
RFF
12
C
10
Reference
 
DTM
13
C
5
Date/time/period
 
QTY
14
C
5
Quantity
 
   
Drawing Administration Summary Section
   
 
UNT
15
M
1
Message trailer
 
UNZ
16
M
1
Interchange trailer
Max. Occ. = Maximum occurrence of the segment/group, Status: M=Mandatory, C=Conditional, R=Required, O=Optional, A=Advised, D=Dependent