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Self-Adaptive Systems (SASs) are systems that monitor and adapt their behavior autonomously in response to dynamic state and environmental conditions. A typical architecture of SASs is constituted of a Manager (Autonomic) Sub-System that controls a Managed Sub-System. A well known architecture of the Autonomic Sub-System is the MAPE-K model. It is constituted of the Monitor, the Analysis, the Plan, and the Execution stages and the Knowledge Base. The major challenge of SAS is that all the stages are subject to uncertainty. Consequently, it has a significant impact on the adaptation quality. Currently, uncertainty is considered as a first-class concern in constructing Self-Adaptive Systems. However, few detailed works have been done about uncertainty in MAPE-K Control Loop. This paper intends to survey the most recent research on uncertainty in the MAPE-K using FRAMESELF architecture which is a detailed MAPE-K loop. Precisely, we present the sources of uncertainty in each process of the FRAMESELF model. In addition, we focus on missedsources of that we believe the community should consider.

International Conference on Advanced Technologies, Computer Engineering and Science
ICATCES

S. OUARETH S. BOULEHOUACHE S. MAZOUZI