Ask HN: What is the importance of Amazon AWS usage?

In AWS, there is 3 level heirarchy 1. Service 2. Operation 3. Usage type

Service EX: Amazon EC2, Amazon S3 so on To map the operations and usagetypes, I plotted a chart. Looks quite good - but intention is to include some actionable insights on the data presented. Can some one comment if such a tool is helpful or just not useful? https://docs.google.com/a/hooduku.com/open?id=0B8g-v9gnQxQnVWdMN01zWjdHems

Will it be helpful to also show how the costs impact? What other details would be helpful?

Thanks Sudhi