Prior to the deployment of text miner the related tools, staffers needed to dig data out from each of the complaint cases to track progress, Yuk noted. "It also took a week to compile reports on key performance indicators such as abandoned call rate, customer satisfaction rate, and first-time resolution rate," he said. Now staffers answering calls input incident reported into the system, said Yuk, adding that calls are recorded so that supervisors can check accuracy. The text mining system in accessed only by business analysts and call center supervisors.