1. College of Business Education (CBE), Dar es Salaam, Tanzania & School of Computing, University of Eastern Finland (UEF), Joensuu, Finland
2. Department of Information and Communication Technologies, The Open University of Tanzania (OUT), Dar es Salaam, Tanzania; North West University, Vanderbijlpark, South Africa; & School of Computing, University of Eastern Finland (UEF), Joensuu, Finland