Abstract
| Original language | Undefined |
|---|---|
| Title of host publication | Proceedings of the Sixteenth IEEE International Enterprise Distributed Object Computing Conference, EDOC 2012 |
| Editors | CH. Chi, D Gasevic, W.J. van den Heuvel |
| Place of Publication | USA |
| Publisher | IEEE Computer Society |
| Pages | 103-112 |
| Number of pages | 10 |
| ISBN (Print) | 978-1-4673-2444-1 |
| DOIs | |
| Publication status | Published - Sep 2012 |
| Event | 16th IEEE International Enterprise Distributed Object Computing Conference, EDOC 2012 - Beijing, China Duration: 10 Sep 2012 → 14 Sep 2012 Conference number: 16 |
Publication series
| Name | |
|---|---|
| Publisher | IEEE Computer Society |
| ISSN (Print) | 1541-7719 |
Conference
| Conference | 16th IEEE International Enterprise Distributed Object Computing Conference, EDOC 2012 |
|---|---|
| Abbreviated title | EDOC |
| Country | China |
| City | Beijing |
| Period | 10/09/12 → 14/09/12 |
Keywords
- EWI-22844
- IR-83487
- SCS-Services
- METIS-293296
Cite this
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Decision as a service: Separating decision-making from application process logic. / Zarghami, Alireza; Sapkota, Brahmananda; Zarifi Eslami, Mohammed; van Sinderen, Marten J.
Proceedings of the Sixteenth IEEE International Enterprise Distributed Object Computing Conference, EDOC 2012. ed. / CH. Chi; D Gasevic; W.J. van den Heuvel. USA : IEEE Computer Society, 2012. p. 103-112.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
TY - GEN
T1 - Decision as a service: Separating decision-making from application process logic
AU - Zarghami, Alireza
AU - Sapkota, Brahmananda
AU - Zarifi Eslami, Mohammed
AU - van Sinderen, Marten J.
N1 - eemcs-eprint-22844
PY - 2012/9
Y1 - 2012/9
N2 - In a service-oriented architecture, adaptive and evolvable applications should be able to select, configure and compose different existing application services to deal with the changes which can arise from runtime contextual changes or the change of user requirements and preferences. To support this, hybrid service composition approaches have been proposed, in which the core of the application logic is specified in terms of processes, while rules are employed to specify the conditions and constraints to adapt the application behaviour. The rules are then exposed as a decision service which can be employed by the process to make adaptation decision with respect to runtime circumstances. The interaction between processes and decision services are generally performed in a synchronous request-response manner. We argue that such an interaction is not efficient to support different types of adaptation at runtime and therefore asynchronous interaction should also be supported. In this paper, we present an adaptive service provisioning architecture and a decision service template allowing both synchronous request-response interaction and asynchronous notification. To motivate the proposed architecture and the decision service template, we use a blood pressure monitoring scenario from the homecare domain. We also explain the implementation of the proposed approach based on commercially available rule and process engines. Finally, we discuss: 1) what is the efficient way (synchronous request-response interaction vs. asynchronous notification) of calling decision service to execute different types of decision rules; and 2) to what extent the use of a decision service facilitates dealing with unforeseen changes.
AB - In a service-oriented architecture, adaptive and evolvable applications should be able to select, configure and compose different existing application services to deal with the changes which can arise from runtime contextual changes or the change of user requirements and preferences. To support this, hybrid service composition approaches have been proposed, in which the core of the application logic is specified in terms of processes, while rules are employed to specify the conditions and constraints to adapt the application behaviour. The rules are then exposed as a decision service which can be employed by the process to make adaptation decision with respect to runtime circumstances. The interaction between processes and decision services are generally performed in a synchronous request-response manner. We argue that such an interaction is not efficient to support different types of adaptation at runtime and therefore asynchronous interaction should also be supported. In this paper, we present an adaptive service provisioning architecture and a decision service template allowing both synchronous request-response interaction and asynchronous notification. To motivate the proposed architecture and the decision service template, we use a blood pressure monitoring scenario from the homecare domain. We also explain the implementation of the proposed approach based on commercially available rule and process engines. Finally, we discuss: 1) what is the efficient way (synchronous request-response interaction vs. asynchronous notification) of calling decision service to execute different types of decision rules; and 2) to what extent the use of a decision service facilitates dealing with unforeseen changes.
KW - EWI-22844
KW - IR-83487
KW - SCS-Services
KW - METIS-293296
U2 - 10.1109/EDOC.2012.21
DO - 10.1109/EDOC.2012.21
M3 - Conference contribution
SN - 978-1-4673-2444-1
SP - 103
EP - 112
BT - Proceedings of the Sixteenth IEEE International Enterprise Distributed Object Computing Conference, EDOC 2012
A2 - Chi, CH.
A2 - Gasevic, D
A2 - van den Heuvel, W.J.
PB - IEEE Computer Society
CY - USA
ER -