Data quality translates into companies having the right information at the right time to make decisions.
Another article from ComputerWorld that reminds us that if we don't have the infrastructure right, all the data analysis and synthesis in the world isn't going to be worth a hill of beans. In the pharmaceutical world, this is very tied up with the FDA electronic records & electronic signatures rules, 21 CFR Part 11. In finance it is Sarbanes-Oxley that creates the need for data accuracy and integrity and reliability.
I have also seen a number of articles and discussions of "KM" systems that are not connected to the rest of the infrastructure in the company. For example, what good is internal expert locator software that doesn't tie to the company's HR systems that contain contact information and reporting relationships. These days, this kind of thing doesn't make sense.