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. 2015 Aug 31;15(9):21760–21784. doi: 10.3390/s150921760

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© 2015 by the authors; license MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).

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Sequence diagrams of the actions that the basic user (a); the intermediate user (b) and the advanced user; (c) can perform in order to interact with the sensors.

Sequence diagrams of the actions that the basic user (a); the intermediate user (b) and the advanced user; (c) can perform in order to interact with the sensors.