Advantage of traditional measurement method

• Reduce the cost of tranning in the usage of the new software 
• Reduce the develoment cost
• Reduce maintenance cost 

Disadvantages of traditional method

1. Labour intensive 
2. Time consuming
3. Increasing pressure to measutre the quantities for lower fees and under tighter schedules -reduce productivity 
4. Reduce the level of accuracy
5. Reduce the level of competition among consultant firms