electronic- business (e-business) and its branches in the present century

e-business and its various branches are one the important necessities of issues in each country. therefore, using this modern technology needs revision and studying environmental factors as an infrastructure. therefore, first factors, actually environmental obstacles, must be known and prioritized, then the importance factor of each one must be determined, and finally a model for proper implementation must be offered for e-business by providing a solution. as it was mentioned, the great advantages of e-business have made not only the developed countries, but also the developing countries to use it as a competitive tool for international and domestic competitiveness. lack of e-business policy and information and communication technology (ict) won’t result to anything except isolation in the world economic era. the daily increasing development of e-business in the world shows the potential advantages of e-business by this way in the economic and business eras. therefore, there would be no way just a permanent attempt to use e-business in the economic activities.