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Integration of Services into Workflow Applications
book

Integration of Services into Workflow Applications

by Pawel Czarnul
June 2015
Intermediate to advanced content levelIntermediate to advanced
290 pages
7h 37m
English
Chapman and Hall/CRC
Content preview from Integration of Services into Workflow Applications
Complex Distributed Scenarios as Workflow Applications 43
2.2.5 Workflow Scheduling
For abstract workflows that contain tasks with two or more services as-
signed to them, a workflow scheduling problem needs to be solved. Given
the aforementioned dependency constraints defined by the graph, using the
introduced notation, the workflow scheduling problem can be stated as
follows:
i
find t
i
(s
i sel(i)
, t
st
i
) (2.1)
where s
i sel(i)
denotes the service selected for execution of t
i
starting at time
t
st
i
such that
i,k:(t
i
,t
k
)E
t
st
k
t
st
i
+ t
exec
i sel(i)
(2.2)
with constraints on the workflow execution time and cost. The workflow ex-
ecution time (not considering scheduling ...
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Publisher Resources

ISBN: 9781498706469