Reference:
W3C. (1999)Common markup for Web micropayment systems online. Available from:http://www.w3.org/TR/1999/WD-Micropayment-Markup-19990609/(Accessed: 20 October 2014).
To complete this Assignment:
Choose one of the micropayment systems covered in reference link above. Briefly describe how it works. Evaluate the quality of security offered by this micropayment system.