Computing (25 Oct 07) has an article on data management, featuring BAE Systems as one of a series of case studies. BAE estimates "80% of networked employees were wasting an average of 30 minutes a day retrieving information , while 60% were spending an hour or more duplicating the work of others".
The article acknowledges the cultural barriers to using/sharing data and suggests policies are put in place to establish guidelines and principles, as well as training and mentoring to help develop the collaborative and information management skills required.
One of the case studies, Denton Wilde Sapte, cautions "People are so wrapped up in the technical whizz-bangs that they forget that IT is really all about information delivery".
"Organisations are recognising that some pieces of their information have more fundamental value than other parts, although that value might not be realisable today. For certain items of information its maximum value will only be achieved at some point in the future, so companies need to invest in good archiving, storage, search and retrieval systems today" Ian Charlesworth, Ovum, quoted in the article.