The decision review system has undergone two changes, which third umpire Rudi Koertzen says will be warmly welcomed by umpires in the middle.
The system will get its first use in the test between New Zealand and Pakistan, starting in Dunedin today, and ICC umpires manager Doug Cowie said the changes helped a game which had to make use of technology.
The system was used in tests last season with mixed reviews, but the changes should improve the system, Cowie said.
The first change was that the third umpire could use the predictive path.
This predicts where the ball would have gone after it hit the pad.
Cowie said last year the path could not be used but everyone watching on television could see it, so that put the umpire at a disadvantage.
The second change was they had designed an area of certainty, where if the predicted path of the ball was to hit in that position, then the umpire's decision in the field would stand.
The system allowed two unsuccessful player review requests per innings.
If every challenge is successful it could be possible to have all 10 dismissals through the system.
Cowie said the average time to decide on a dismissal was about 2 minutes, 25 seconds, which was not much out of a day's cricket.
He said it was not impacting on the purity of cricket, nor undermining their role.
"In the past the games were played out in the middle and the rest of the world did not know.
"But that has changed with technology.
"Most umpires are very comfortable with the technology," he said.
"They don't want to to making wrong decisions."
South African Koertzen was completely comfortable with the new technology.
"You might go out in the first over and make a decision and then you have to wait for lunch to be told by your mate you've made a mistake which has already been seen by millions of people," he said.
