Managing run-time variability in robotics software by modeling functional and non-functional behavior

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Abstract

Service robots act in open-ended and natural environments. Therefore, due to the huge number of potential situations and contingencies, it is necessary to provide a mechanism to express dynamic variability at design-time that can be efficiently resolved on the robot at run-time based on the then available information. In this paper, we present a modeling process to separately specify at design-time two different kinds of dynamic variability: (i) variability related to the robot operation, and (ii) variability associated with QoS. The former provides robustness to contingencies, maintaining a high success rate in robot task fulfillment. The latter focuses on the quality of the robot execution (defined in terms of non-functional properties like safety or task efficiency) under changing situations and limited resources. We also discuss different alternatives for the run-time integration of the two variability management mechanisms, and show real-world robotic examples to illustrate them. © 2013 Springer-Verlag.

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Lotz, A., Inglés-Romero, J. F., Vicente-Chicote, C., & Schlegel, C. (2013). Managing run-time variability in robotics software by modeling functional and non-functional behavior. In Lecture Notes in Business Information Processing (Vol. 147 LNBIP, pp. 441–455). Springer Verlag. https://doi.org/10.1007/978-3-642-38484-4_31

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