01790nam a2200253 a 450000100080000000500110000800800410001910000210006024501110008126001250019230000160031750000140033352009340034765000190128165300370130065300260133765300410136370000200140470000230142470000200144770000250146770000230149270000210151519764542020-01-08       2013    bl uuuu     u00u1 u    #d1 aROMANI, L. A. S.  aInvolving users in the gestural language definition process for the NInA framework.h[electronic resource]  aIn: BRAZILIAN SYMPOSIUM ON HUMAN FACTORS IN COMPUTING SYSTEMS, 12., 2013, Manaus. Proceedings... Porto Alegre: SBCc2013  ap. 280-283.  aIHC 2013.  aAlong the past years, many interaction devices had been introduced to support the interaction between humans and computers, as the digital pen, touch sensitive devices and, more recently, gesture recognition devices. The last one allows a human-computer interaction using only the user's body movement, turning the interaction more "natural". However, these natural user interfaces (NUI) are still based on a pre-defined set of commands and are still not as natural as we desire. In this work, we questioned the benefits of the NUI over the mouse and keyboard combination. This work presents some improvements on the NUI system for Geographic Information Systems (GIS), the NInA framework. Results showed that a NUI approach demands a short learning time, with just a couple of interactions and instructions, and the user is ready to go. Moreover, the users demonstrated greater satisfaction, leading to productivity improvement.  aUser interface  aGeographical information systems  aInterface ao usuário  aSistemas de informação geográfica1 aCHINO, D. Y. T.1 aAVALHAIS, L. P. S.1 aOLIVEIRA, W. D.1 aGONÇALVES, R. R. V.1 aTRAINA JÚNIOR, C.1 aTRAINA, A. J. M.