background: media advertisements especially radio and tv are one of the most important and effective ways for health promotion and consumption of healthy productions worldwide. ministry of health and some other ministries in iran agreed to control and restrict the advertising of unhealthy products and services. therefore, adequate supervision and monitoring should be done in this field.  a cont...

nowadays, world wide web has become a popular medium to search information, business, trading and so on. various organizations and companies are also employing the web in order to introduce their products or services around the world. therefore e-commerce or electronic commerce is formed. e-commerce is any type of business or commercial transaction that involves the transfer of information acro...

Ramiller, N. C., Davidson, E., Wagner, E. L., and Sawyer, S., 2008, in IFIP International Federation for Information Processing, Volume 267, Information Technology in the Service Economy: Challenges and Possibilities for the 21 Century, eds. Barrett, M., Davidson, E., Middleton, C., and DeGross, J. (Boston: Springer), pp. 343-348. 25 TURNING PRODUCTS INTO SERVICES AND SERVICES INTO PRODUCTS: Co...