Browsing by Author "Pino, Jose A."

Now showing 1 - 5 of 5
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    A reusable structural design for mobile collaborative applications
    (ELSEVIER SCIENCE INC, 2012) Neyem, Andres; Ochoa, Sergio F.; Pino, Jose A.; Dario Franco, Ruben
    Architecting mobile collaborative applications has always been a challenge for designers. However, counting on a structural design as a reference can help developers to reduce risks and efforts involved in system design. This article presents a reusable architecture which helps modeling the communication and coordination services required by mobile collaborative applications to support collaboration among users. This architecture has been used as a basis for the design of several mobile systems. Two of them are presented in this article to show the applicability of the proposal to real world collaborative systems. (C) 2011 Elsevier Inc. All rights reserved.
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    COMMUNICATION SUPPORT FOR MOBILE COLLABORATIVE WORK: AN EXPERIMENTAL STUDY
    (WORLD SCIENTIFIC PUBL CO PTE LTD, 2012) Messeguer, Roc; Medina, Esunly; Ochoa, Sergio F.; Pino, Jose A.; Neyem, Andres; Navarro, Leandro; Royo, Dolors
    Advances in mobile computing and wireless communication are easing the evolution from traditional nomadic work to computer-mediated mobile collaborative work. Technology allows efficient and effective interaction among mobile users and also provides access to shared resources available to them. However, the features and capabilities of the communication infrastructure supporting these activities influence the type of coordination and collaboration employed by mobile collaborative applications in real work scenarios. Developers of these applications are typically unaware of the constraints the communication infrastructure imposes on mobile collaborative systems, because they are not easy to foresee. That leads to a high probability of communication problems in otherwise fully functional mobile collaborative support applications. This paper presents an experimental study with real devices and networks on a realistic physical environment that shows how ad hoc networks can effectively support mobile collaborative work and the practical limitations. The paper analyzes several networking issues and determines how they influence mobile collaborative work in various interaction scenarios. The paper also presents the lessons learned in the study and provides recommendations to deal with some networking issues related to real-world ad hoc networks.
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    Learning about earthquakes: getting serious about authenticity in computer-supported learning
    (ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD, 2011) Baloian, Nelson; Pino, Jose A.; Hardings, Jens
    The discovery or re-construction of scientific explanations and understanding based on experience is a complex process, for which school learning often uses shortcuts. On the basis of the example of analyzing real seismic measurements, we propose a computer-facilitated collaborative learning scenario which meets many of the requirements for authentic learning, knowledge construction, and collaboration. The implementation of the learning environment called SeisModes is based on a general platform for supporting collaborative modeling activities. SeisModes provides a tool to allow students collaboratively learn about earthquakes and thus reduce the fears they might have concerning them. First formal evaluations showed the approach motivates students.
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    Mobile computing in urban emergency situations Improving the support to firefighters in the field
    (PERGAMON-ELSEVIER SCIENCE LTD, 2011) Monares, Alvaro; Ochoa, Sergio F.; Pino, Jose A.; Herskovic, Valeria; Rodriguez Covili, Juan; Neyem, Andres
    Communication support is a serious limitation for Latin American firefighters when they deal with emergency situations The insufficient number of radio channels and the impossibility to deliver digital information force firemen to improvise during response processes e g to make decisions using their experience and poor or null supporting information These improvised actions affect the time required to take control of an emergency and also affect the evolution of the crisis situation Provided most of Latin American fire companies are volunteer organizations communication solutions that could help to overcome these problems are usually expensive for them This article presents a low-cost mobile collaborative application which may be used in emergency situations to overcome most of the firefighters communication problems The application named MobileMap is the result of the research and development work conducted by the authors supported by a Chilean fire company during the last three years MobileMap allows ad hoc communication decisions support and collaboration among firefighters in the field using mobile devices This solution complements the radio communication systems Since the Inter actions supported by MobileMap are recorded it is possible to analyze such information after the crisis and learn for future emergencies The tool was evaluated in simulated and real scenarios and the obtained results are highly encouraging (C) 2010 Elsevier Ltd All rights reserved
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    The Iceberg Effect: Behind the User Interface of Mobile Collaborative Systems
    (GRAZ UNIV TECHNOLGOY, INST INFORMATION SYSTEMS COMPUTER MEDIA-IICM, 2011) Herskovic, Valeria; Ochoa, Sergio F.; Pino, Jose A.; Neyem, Andres
    Advances in mobile technologies are opening new possibilities to support collaborative activities through mobile devices. Unfortunately, mobile collaborative systems have been difficult to conceive, design and implement. These difficulties are caused in part by their unclear requirements and developers' lack of experience with this type of systems. However, several requirements involved in the collaborative back-end of these products are recurrent and should be considered in every development. This paper introduces a characterization of mobile collaboration and a framework that specifies a list of general requirements to be considered during the conception and design of a system in order to increase its probability of success. This framework was used in the development of two mobile collaborative systems, providing developers with a base of back-end requirements to aid system design and implementation. The systems were positively evaluated by their users.