EC transactions; Electronic commerce transactions
A mobile e-Commerce transaction is an e-Commerce transaction that is initiated and performed using a mobile device, such as a smart phone, tablet, or laptop, over a wireless access network or a short-range wireless link.
An electronic transaction is the sale or purchase of goods or services, whether between businesses, households, individuals, governments, and other public or private organizations, conducted over computer mediated networks. The goods and services are ordered over those networks, but the payment and the ultimate delivery of the good or service may be conducted on or off-line. 
E-commerce transaction was defined by OECD  from business and statistical perspective. The parties above can be individual customers (C), companies (B), or governments (A). One speaks accordingly about B2C, B2A, B2B, C2C e-Commerce and e-Commerce transactions. Historically, Electronic Data Interchange (EDI) was...
- 1.Annex 4. The OECD definitions of Internet and E-commerce transactions. Available at: http://www.oecd.org/dataoecd/34/16/2771174.pdf
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