Knowledge worker value chain

What do knowledge workers do? I've been wondering just that, here are my thoughts:

• Taking/anticipating requests for information
• Collecting information
• Making requests for information
• Storing inforation
• Analysing information
• Forming opinions
• Making decisions
• Creating information (creativity)
• Preparing outputs (e.g. reports)
• Distributing information

And here's how the steps interlink:

Green = the administrative side
Orange = the analytical/creative side
Blue = the output side