Function introduction: Comprehensive management of the daily office system of a simple company: permission setting, approval process, announcement, organization and personnel: department setting, employee information, attendance management, personal office: no memo address book, my attendance file management: official document approval, public document sending and receiving, procurement management: supplier procurement entry Inventory purchase return inventory management: inventory settings inventory status product loss reporting inventory allocation sales management: product sales sales returns financial management: accounting account fixed assets fixed assets depreciation payroll accounting voucher list assets liabilities profits gains and losses cash flow Note: The development environment is Visual Studio 2010 and the database is Access. Administrator username and password are: 51aspx