Evaluation Methodology for Analyzing Usability Factors in Biometrics Articles uri icon

authors

  • FERNANDEZ SAAVEDRA, MARIA BELEN
  • ALONSO MORENO, RAUL
  • URIARTE DE ANTONIO, JAIME DE
  • SANCHEZ REILLO, RAUL

publication date

  • August 2010

start page

  • 20

end page

  • 31

issue

  • 8

volume

  • 25

International Standard Serial Number (ISSN)

  • 0885-8985

Electronic International Standard Serial Number (EISSN)

  • 1557-959X

abstract

  • In recent years, biometrics is being used more and more in security applications. This fact has led suppliers and researchers to analyze biometric algorithms powers and vulnerabilities, as to improve the
    feasibility of this technology. Nevertheless, as many authors claim,
    biometric performance also depends on other factors such as usability
    and/or user acceptance, which can influence significantly their
    performance. Only a few of these factors have already been studied,
    using specific approaches and only for certain biometric modalities,
    such us fingerprint and face. However, there is no general and
    independent methodology implemented to assess how these factors affect
    biometric system performance and to produce intercomparable results.
    Based on previous works and following procedures and requirements
    addressed in the International Standard ISO/IEC 19795-2 for scenario
    evaluations, these authors have developed a general methodology to
    analyze end-to-end system performance when some usability factors are
    modified. Such factors cover different ways of presenting biometric
    characteristics to the sensor and also the biometric characteristic
    variability caused by illness or climatic changes. A generic and
    controlled scenario has been modelled to carry on all sets of trials.
    Then, the methodology has been particularized defining specific
    protocols, methods, and considerations for each parameter to assess.
    Furthermore, details for analysing these parameters through different
    modalities have been defined. In addition, this methodology has been
    checked for one modality considering different usability aspects to
    obtain the feedback necessary to test its validity and viability and to
    detect points of interest for improvement. Results, main conclusions,
    and suggestions for test operators will be presented.