(From enterprise-level e-commerce business, enterprise center business system (such as CRM, ERP, OA, HR) operation, enterprise financial system (group finance, asset management system, etc.) operation, the use of e-government business objectives (local tax, National taxation, industry and commerce, customs, commodity inspection, etc.) management, enterprise mail system, data sharing and transmission between enterprise branches or common data center system, use of video and audio and instant exchange tools, etc.)