Electronic services or e-services are services which make use of information and communication technologies (ICTs). The three main components of e-services are:

1. service provider;
2. service receiver; and
3. the channels of service delivery (i.e., technology)

For example, with respect to public e-service, public agencies are the service provider and citizens as well as businesses are the service receiver. For public e-service the internet is the main channel of e-service delivery while other classic channels (e.g. telephone, call center, public kiosk, mobile phone, television) are also considered.

Since its inception in the late 1980s in Europe and formal introduction in 1993 by the US Government, the term ‘E-Government’ has now become one of the recognized research domains especially in the context of public policy and now has been rapidly gaining strategic importance in public sector modernization. E-service is one of the branches of this domain and its attention has also been creeping up among the practitioners and researchers.

E-service (or eservice) is a highly generic term, usually referring to

"The provision of services via the Internet (the prefix 'e' standing for ‘electronic’, as it does in many other usages), thus e-Service may also include e-Commerce, although it may also include non-commercial services (online), which is usually provided by the government." (Irma Buntantan & G. David Garson, 2004: 169-170; Muhammad Rais & Nazariah, 2003: 59, 70-71).

"E-Service constitutes the online services available on the Internet, whereby a valid transaction of buying and selling (procurement) is possible, as opposed to the traditional websites, whereby only descriptive information are available, and no online transaction is made possible." (Jeong, 2007).