There are some more issues that crop up during the implementation of an KM programme. That is, does one periodically copy all files into a central data warehouse. And this is where codification and personalisation come into the picture. The article says that a company's KM initiatives could centre around either codification, or personalisation. Companies that try to use both equally don't usually taste success.
Codification centres on the computer.
Here, all knowledge is carefully codified into the computer, where it can be easily accessed by anyone and used. With personalisation, the computer's role changes. It now has to help people communicate knowledge. Thus, while the first might give the user data on, say, the coalmine industry, the personalisation model will probably give a brief overview of the industry, and then point the user towards the company's authorities on coalmines. This choice between codification and personalisation is far from an arbitrary one.