Green grass is what Predix.io has been doing, edge to cloud, digital twin etc.
http://www.allthingsdistributed.com/2017/06/unlocking-value-device-data-aws-greengrass.html
Glue is my work of data management workbench in Bitstew.
http://docs.aws.amazon.com/glue/latest/dg/what-is-glue.html
It's a little scary when I first learned this. They are so similar and Amazon is so influential and I worried they will surpass us.
At the end of day, I convinced myself that at least what I have been doing is cutting edge technologies and I want to do harder to make it better than Amazon's.
