1)企业信息化
u 企业资源计划(Enterprise Resources Planning,ERP)
u 客户关系管理(Customer Relationship Management,CRM)
u 供应链管理(Supply Chain Management,SCM)
u 商业智能(Business Intelligence,BI)
u 企业门户(Enterprise Portal,EP),可以划分为三类:信息门户(EIP)、知识门户(EKP)、应用门户(EAP)
2)电子政务
u G2G(Government To Government,政府对政府)
u G2E(Government To Employee,政府对公务员)
u G2B(Government To Business,政府对企业)
u G2C(Government To Citizen,政府对公民)
3)电子商务
u B2B(Business To Business,企业对企业)
u B2C(Business To Customer,企业对个人)
u C2C(Customer To Customer,个人对个人)