The Data Quality Management For Telecom Analysis System

The telecom business analysis system is one that constructed on other operative systems of a telecom company. It's a decision supporting system for serving management by integrating the abundant business data.Nowadays, the competitions between telecom companies have become more and more severe. To adapt the situation, telecom companies should gradually change the management style from the mode depending on experiences to the mode depending on analysis. So it is very necessary to build a business analysis system of high efficiency, and the work will be paid much attention to in the future several years.As an advanced technology in the area of information, the technology of Data Warehouse has developed quickly in the last several years, and played an important role in the telecom business analysis systems. Due to the characteristics of telecom industry, such as the complex business operations and large amount of data, it is inevitable to come up against data quality problems. Some systems have even failed for the bad data quality, which makes the customers doubt the system's usability.The paper mainly contributes to the following three aspects:1) It introduces the methods of how to check the data quality in data warehouse;2) According to the characteristics of telecom industry, it analyzes the improvement strategies for ETL, which can reach the goal of improving the data quality by strengthening the data warehouse;3) It designs some useful function modules for assisting checking data quality, and puts forward an effective method of synchronizing the dimension tables to assure the veracity.One business analysis system of some telecom company has run well since the first day it was used, and no severe data quality problems have occurred, which validate the theories the paper puts forward.