Title
Runtime Adaptability through Automated Model Evolution
Abstract
Dynamically adaptive systems propose adaptation by means of variants that are specified in the system model at design time and allow for a fixed set of different runtime configurations. However, in a dynamic environment, unanticipated changes may result in the inability of the system to meet its quality requirements. To allow the system to react to these changes we propose a solution for automatically evolving the system model by integrating new variants and periodically validating existing ones based on updated quality parameters. To illustrate our approach we present a BPEL based framework using a service composition model to represent the system functional requirements. Our framework estimates Quality of Service (QoS) values based on information provided by our monitoring mechanism, ensuring that changes in QoS are reflected in the system model. We show how the evolved model can be used at runtime to increase the system's autonomic capabilities and delivered QoS.
Year
DOI
Venue
2010
10.1109/EDOC.2010.22
EDOC
Keywords
Field
DocType
automated model evolution,autonomic capability,system functional requirement,system model,different runtime configuration,design time,dynamic environment,updated quality parameter,quality requirement,dynamically adaptive system,runtime adaptability,service composition model,quality of service,system modeling,functional requirement,weather forecasting,qos,computational modeling,software quality
Adaptability,Functional requirement,Systems engineering,Adaptive system,Computer science,Quality of service,Business Process Execution Language,Software quality,Weather forecasting,System model
Conference
ISSN
Citations 
PageRank 
2325-6354
5
0.43
References 
Authors
35
3
Name
Order
Citations
PageRank
Adina D. Mosincat1494.29
Walter Binder2107792.58
Mehdi Jazayeri31280176.00