For reasons of consistency, we call the use of information and communication technologies in proprietary networks ICT adoption. Here, the emphasis should be on networked adoptions, and isolated use of computers should be neglected. Furthermore, the analysis should be limited to networked computers or other data processing devices. (Telephone, Fax and Telex applications should not be included). The term ICT itself stands for the technology or the tools (networks, computers, other data processing and transmitting equipment, and software). The use of ICT in business processes leads to e-business, if non-proprietary networks are used, and to ICT adoption in proprietary networks.