3.8.3 Conditions for drawing relation lines
This subsection describes the conditions for drawing relation lines between nodes. The following table lists the types of connection source nodes and destination nodes, and indicates whether nodes can be connected by a relation line.
|
Node |
Source node |
Destination node |
Connectable? |
Supplementary description |
|---|---|---|---|---|
|
1 |
Terminal Node |
Terminal Node |
N |
-- |
|
2 |
Process Node |
Y |
-- |
|
|
3 |
Branching node |
N |
-- |
|
|
4 |
Merge node |
C |
The nodes cannot be connected if a relation line from another Terminal Node to the Merge node has already been drawn. |
|
|
5 |
Undetermined#1 Branch Node |
C |
The nodes cannot be connected if a relation line with another Terminal Node has already been drawn. |
|
|
6 |
Process Node |
Terminal Node |
Y |
-- |
|
7 |
Process Node |
Y |
-- |
|
|
8 |
Branching node |
Y |
-- |
|
|
9 |
Merge node |
Y |
-- |
|
|
10 |
Undetermined#1 Branch Node |
Y |
-- |
|
|
11 |
Branching node#2 |
Terminal Node |
Y |
-- |
|
12 |
Process Node |
Y |
-- |
|
|
13 |
Branching node |
N |
-- |
|
|
14 |
Merge node |
C |
The nodes cannot be connected if the same transition already exists. |
|
|
15 |
Undetermined#1 Branch Node |
Y |
-- |
|
|
16 |
Merge node#2 |
Terminal Node |
C |
The nodes cannot be connected if a relation line has already been drawn from another Terminal Node to the Merge node. |
|
17 |
Process Node |
Y |
-- |
|
|
18 |
Branching node |
N |
-- |
|
|
19 |
Merge node |
N |
-- |
|
|
20 |
Undetermined#1 Branch Node |
N |
-- |
|
|
21 |
Undetermined#1 Branch Node#2 |
Terminal Node |
Y |
-- |
|
22 |
Branching node |
N |
-- |
|
|
23 |
Merge node |
Y |
-- |
|
|
24 |
Undetermined#1 Branch Node |
Y |
-- |
- Legend:
-
Y: Can be connected.
N: Cannot be connected.
C: Can be connected conditionally.
--: None
#1: Indicates that the node is neither branched nor merged.
#2: You can draw a maximum of three relation lines from a Branch Node used for branching or merging.