title: Enhancing knowledge flow in a health care context: a mobile computing approach.
abstract: BACKGROUND
  Advances in mobile computing and wireless communication have allowed people to interact and exchange knowledge almost anywhere. These technologies support Medicine 2.0, where the health knowledge flows among all involved people (eg, patients, caregivers, doctors, and patients' relatives).
  
  
  OBJECTIVE
  Our paper proposes a knowledge-sharing environment that takes advantage of mobile computing and contextual information to support knowledge sharing among participants within a health care community (ie, from patients to health professionals). This software environment enables knowledge exchange using peer-to-peer (P2P) mobile networks based on users' profiles, and it facilitates face-to-face interactions among people with similar health interests, needs, or goals.
  
  
  METHODS
  First, we reviewed and analyzed relevant scientific articles and software apps to determine the current state of knowledge flow within health care. Although no proposal was capable of addressing every aspect in the Medicine 2.0 paradigm, a list of requirements was compiled. Using this requirement list and our previous works, a knowledge-sharing environment was created integrating Mobile Exchange of Knowledge (MEK) and the Easy to Deploy Indoor Positioning System (EDIPS), and a twofold qualitative evaluation was performed. Second, we analyzed the efficiency and reliability of the knowledge that the integrated MEK-EDIPS tool provided to users according to their interest topics, and then performed a proof of concept with health professionals to determine the feasibility and usefulness of using this solution in a real-world scenario.
  
  
  RESULTS
  . Using MEK, we reached 100% precision and 80% recall in the exchange of files within the peer-to-peer network. The mechanism that facilitated face-to-face interactions was evaluated by the difference between the location indicated by the EDIPS tool and the actual location of the people involved in the knowledge exchange. The average distance error was <6.28 m for an indoor environment. The usability and usefulness of this tool was assessed by questioning a sample of 18 health professionals: 94% (17/18) agreed the integrated MEK-EDIPS tool provides greater interaction among all the participants (eg, patients, caregivers, doctors, and patients' relatives), most considered it extremely important in the health scenario, 72% (13/18) believed it could increase the knowledge flow in a health environment, and 67% (12/18) recommend it or would like to recommend its use.
  
  
  CONCLUSIONS
  The integrated MEK-EDIPS tool can provide more services than any other software tool analyzed in this paper. The proposed integrated MEK-EDIPS tool seems to be the best alternative for supporting health knowledge flow within the Medicine 2.0 paradigm.
authors.affiliation: Graduate School in Computing Science (PPGI), Federal University of Rio de Janeiro/Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil. jonice@gmail.com.
authors.forename: Jonice
authors.identifier: http://orcid.org/0000-0002-2495-1463
authors.initials: J
authors.lastname: Oliveira
authors.forename: Diego Da Silva
authors.identifier: http://orcid.org/0000-0003-4150-8882
authors.initials: Dda S
authors.lastname: Souza
authors.forename: Patrícia Zudio
authors.identifier: http://orcid.org/0000-0001-5347-0258
authors.initials: PZ
authors.lastname: de Lima
authors.forename: Pedro C
authors.identifier: http://orcid.org/0000-0002-8891-8670
authors.initials: PC
authors.lastname: da Silveira
authors.forename: Jano Moreira
authors.identifier: http://orcid.org/0000-0001-5080-1955
authors.initials: JM
authors.lastname: de Souza
keywords: Medicine 2.0; collaborative interaction; health care; knowledge sharing; mobile computing; social computing