Technical and business evaluation of database/service

Technical and business evaluation of Amazon Web Services

What are the key database products made by the vendor OR the key database platforms available under the database category (do not just use the ones listed – there are MANY MORE)?

If a vendor, who are the competitors to the platform? If a database technology class, who is the clear leader and why?

What industries are these database vendors tools or database technology platforms used in? Is the market increasing or decreasing for technology?

What are the key features for each of these database platforms? What are differentiators compared to other database platforms in its like-kind class?

Are these databases used on-premise only? Cloud-based only? Mainframe only? Explain the infrastructure use case for each of these databases that you are discussing. 

Provide three (3) business uses for why a customer/client would want to use your vendors/class of database technology in their environment.

What are key technical skills a data administrator or database administrator would require if they use this platform?

Where do you believe this technology will be in 3-5 years?