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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
70 A Concept of Dynamic Quality Management for Service-Based ...
Input data:
1. the workflow graph G(T, E) with batch data processing tasks,
2. sets of services S
i
= {s
i1
, s
i2
, . . . , s
i|S
i
|
} for each task,
3. quality metrics q
k
ij
of service s
ij
,
4. data sizes d
i
to be processed in particular tasks t
i
.
The goal is to find an assignment
i
t
i
(s
i sel(i)
, t
st
i
) (where sel(i) de-
notes the index of the service selected for task t
i
and sel denotes a vector of
these selections) such that execution of services on particular resources does
not consume more resources than available (e.g., more processing cores than
available) and a given QoS function is minimized:
min f
o
(Q, d) (3.1)
where:
q
k
is a vector of the k-th quality metric for the selected service sel(i)
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Publisher Resources

ISBN: 9781498706469