How to upgrade ERP system successfully ?

ERP systems enable enterprises to improve business productivity, increase cost savings and streamline business operations. That's why huge number of companies are interested in implementing and upgrading their existing ERP systems. Those activities are identified as one of the most important IT priorities. The most important practices during ERP upgrade which will help to make the project successful are:

• upgrade of ERP must be treated as a new project
• company shoud focus on selling instead of cost reduction
• the same team should be involved in planning and implementing the system
  
• business department is more absorbed then IT
• awarness of additional infrastructure costs
• customization issues
  
• preceise tests of new environment
  

(bp_example_erpII.pdf by Robert C. Beatty and Craig D. Williams)