Electronic Commerce Modelling Language (ECML) is a web standard that serves online billing and greatly simplifies online shopping. Defined by the Internet Engineering Task Force (IETF) in RFC
2706, the ECML standard specifies some payment information that the buyer can transmit to the Web merchant with a mouse click, such as the shipping and billing address and credit card information. ECML has various data fields that support the fast exchange of information between the buyer and the e-shop without the buyer having to fill in forms
. For this purpose, only the HTML pages in the e-shop where orders are processed have to be renamed. Well-known software companies such as IBM, SUN and Microsoft were involved in the development of ECML, but also the credit card companies VISA, American Express and Mastercard.