จดโน๊ตไว้ก่อน TCO (Total cost of ownership)

TCO (Total Cost of Ownership) = (Direct Cost + Indirect Costs + Limitations + Intangible Costs) – Benefits

Direct Costs

  • Software Licenses
  • Deployment Costs
  • Hardware Costs
  • Networking Costs
  • Operational Cost

Indirect Costs

  • Training Costs
  • Support Costs
  • Migration Cost
  • Development Costs
  • Maintenance Fees
  • Upgrade Costs

Limitations

  • Scalability
  • Available Options
  • Enhancements
  • R&D Investment
  • Performance
  • Down Time
  • Managebility

Intangible Costs

  • Bad Publicity
  • Public Perception
  • Vendor Reputation

เอามาจาก http://www.narisa.com/forums/index.php?showtopic=19

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