Model predictive control for software systems with CobRA

Angelopoulos, KonstantinosUniversity of Trento,University of Brighton (författare)

Self-adaptive software systems monitor their operation and adapt when their requirements fail due to unexpected phenomena in their environment. This paper examines the case where the environment changes dynamically over time and the chosen adaptation has to take into account such changes. In control theory, this type of adaptation is known as Model Predictive Control and comes with a well-developed theory and myriads of successful applications. The paper focuses on modelling the dynamic relationship between requirements and possible adaptations. It then proposes a controller that exploits this relationship to optimize the satisfaction of requirements relative to a cost-function. This is accomplished through a model-based framework for designing self-adaptive software systems that can guarantee a certain level of requirements satisfaction over time, by dynamically composing adaptation strategies when necessary. The proposed framework is illustrated and evaluated through a simulation of the Meeting-Scheduling System exemplar.

Papadopoulos, Alessandro V.Lund University,Lunds universitet,Institutionen för reglerteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Automatic Control,Departments at LTH,Faculty of Engineering, LTH(Swepub:mdh)aps01 (författare)
Silva Souza, Vítor E.Federal University of Espírito Santo (författare)
Mylopoulos, JohnUniversity of Toronto (författare)
University of TrentoUniversity of Brighton (creator_code:org_t)

Ingår i:Proceedings - 11th International Symposium on Software Engineering for Adaptive and Self-Managing Systems, SEAMS 2016New York, NY, USA : ACM, s. 35-469781450341875

Av författaren/redakt...: Angelopoulos, Ko ...; Papadopoulos, Al ...; Silva Souza, Vít ...; Mylopoulos, John

Om ämnet

NATURVETENSKAP: NATURVETENSKAP; och Data och informa ...; och Programvarutekni ...

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Elektroteknik oc ...; och Reglerteknik

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