Information Technology Reference
In-Depth Information
If two different organizations need to synchronize to finish a certain task, i.e., each
organization shoulders parts of this task, in this way, there exists a task synchroniza-
tion pattern between these two organizations. The formal definition of task synchroni-
zation pattern and the cross-organization workflow net with task synchronization
pattern are defined in Definitions 4.1-4.2.
Definition 4.1.
Let
W
1
=(
P
1
,
T
1
;
F
1
,
M
01
) and
W
2
=(
P
2
,
T
2
;
F
2
,
M
02
) be the WF-net of
two workflow processes. A
task synchronization pattern
exist between them if (1)
P
1
∩
P
2
=
∅
; and (2)
T
1
∩
T
2
≠∅
.
Definition 4.2.
Let
W
1
=(
P
1
,
T
1
;
F
1
,
M
01
) and
W
2
=(
P
2
,
T
2
;
F
2
,
M
02
) be the WF-net of
two workflow processes.
W
CW
=(
P
,
T
;
F
,
M
0
) is the cross-organization workflow net
with task synchronization pattern, short for CWF-net, if: (1)
P
=
P
1
∪
P
2
; (2)
T
=
T
1
∪
T
2
;
(3)
F
=
F
1
∪
F
2
; and (4)
M
0
=
M
01
∪
M
02
.
4.2
A Typical Cross-Organization Workflow Case
A typical scenario of cross-organization medical diagnosis workflow process at least
involves the surgical organization and the cardiovascular organization. For more in-
formation please refer to the case study in [6]. Part of this scenario is described as: (1)
When a patient arrives, the outpatient medical staff performs pre-examination triage;
(2) Then the patient information is generated based on the pre-examination result and
sent to the surgical medical staff; (3) The surgical medical staff takes admissions and
presents the reservation application, and then generates the reservation form; (4) The
surgeon diagnoses this patient and determine if he needs a consultation with the car-
diovascular internists; (5) If a consultation is needed, then the surgeon applies consul-
tation by sending consultation form to the cardiovascular internists; (6) If there is no
need to perform a consultation, the surgeon will give prescription based on the patient
symptom; (7) The internists receive the consultation request and begin to arrange the
consultation; (8) Surgeons and internists conduct the consultation and finally to give a
prescription together; (9) The internists make the consultation summary; and (10) The
patient takes the medicine and then leaves.
This cross-organization medical diagnosis workflow process involves two organi-
zations, i.e., the surgical organization and the cardiovascular organization. More spe-
cifically, the surgical organization contains tasks, such as pre-examination triage (
t
1
),
admissions (
t
2
), reservation application (
t
3
), diagnosis (
t
4
), consultation application
(
t
5
), give prescription (
t
6
) and etc. The cardiovascular organization mainly consists of
tasks like receive consultation request (
t
7
), consultation arrangement (
t
8
), consultation
summary (
t
11
) and file archive (
t
12
). These two organizations need to collaborate to
finish certain tasks, including consultation (
t
9
) and give prescription (
t
10
). Thus, there
exists a task synchronization pattern between them.
According to the former business description, we obtain the WF-net s of the sur-
gical organization (
W
s
) and the cardiovascular organization (
W
C
) which is shown in
Figs. 1-2.