mFerio: the design and evaluation of a peer-to-peer mobile payment system

  • Authors:
  • Rajesh Krishna Balan;Narayan Ramasubbu;Komsit Prakobphol;Nicolas Christin;Jason Hong

  • Affiliations:
  • Singapore Management University, Singapore, Singapore;Singapore Management University, Singapore, Singapore;Carnegie Mellon University, Pittsburgh, PA, USA;Carnegie Mellon University, Pittsburgh, PA, USA;Carnegie Mellon University, Pittsburgh, PA, USA

  • Venue:
  • Proceedings of the 7th international conference on Mobile systems, applications, and services
  • Year:
  • 2009

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Abstract

In this paper, we present the design and evaluation of a near-field communication-based mobile p2p payment application, called mFerio, that is designed to replace cash-based transactions. We first identify design criteria that payment systems should satisfy and then explain how mFerio, relative to those criteria, improves on the limitations of cash-based systems. We next describe mFerio's implementation and user interface design, focusing on the balance between usability and security. Finally, we present the results of a two-phase user study, involving a total of 104 people, that shows that mFerio has low cognitive load and is also fast, accurate, and easy to use - even outperforming cash in terms of speed and cognitive load in common payment situations.