ASP.NET Small Business Management Software

I want to build a business management software with the following features: System Core ================= Common Features -------------------------- Custom User Interface Custom Fields Capable Central Dashboard Alert/Notification System Real-Time Report Generation Exports to Excel Exports to PDF Document Management Role Based Authentication & Security Admin Control Panel System Configuration Settings User Administration Error Logging Activity Logging Template Archive/Generator (For Letters and Forms Generation) HR Performance Management ============================ Human Resource -------------------------- Employee Database/ Profiles Resume Database Position History Vacation / Leave Approval System ---------------------- Performance Appraisals ---------------------- Appraisal History Custom Appraisal Forms Custom Rating Systems Employee Evaluation Forms ------------- Compensations ------------- Bonus Management Incentive Program Manager Salary Planning ----------- Commissions ----------- Commission Calculator Incentive Programs Commission Payouts Operations Management ========================== Contacts -------- Appointments Communications Task Management Leads Database Propects Database Contacts Database ------------------ Proposals & Quotes ------------------ Proposals Quotes Progress Reports --------- Inventory --------- Categories Products/Items Supplier Database ---------- Logistics ---------- Labor Management Scheduling Shipping Management ----------- Procurement ----------- Approval Process Control Auction/Bid Management Requisition Management Admin Management ==================== Business Performance -------------------- Budgeting Forecasting Key Performance Indicators Predictive Analytics Qualitative Analysis Quantitative Analysis Risk Management Scenario Planning Strategic Planning Strategy Mapping Petty Expenses Office Maintenance Charts -------- Visitors -------- Visitor Database Visitor Tracking Accounts Management ==================== Accounting & Financials ----------------------- Account Reconciliation Accounts Payable Accounts Receivable Bank Reconciliation Cash Management Sales Orders Purchase Orders Sales Tax Management Tax Management -------------------- Billing and Invoices -------------------- Invoice Generator Custom Pricing Options Customer History Customer Database ------- Payroll ------- Attendance Management Payroll Scheduling Payroll Tax Management Vacation / Leave Tracking Quarter To Date Tracking Year To Date Tracking ------------ Fixed Assets ------------ Asset Database Asset Lifecycle Management Depreciation Calculation Disposal Management Asset Budgeting