Couple of years back, I was taking a train home one evening and catching up on my round up of new Hadoop tools. A co-passenger was having a covert look at my laptop, and after a while his curiosity was just piqued too much to let it go. “What area do you work in?” he enquired. I said I was an architect and focused on Big Data as well as warehousing. “Big Data!” he exclaimed. “Sounds like black magic to me.” That was the common sentiment a few years back and has not changed much since.