> When you're dealing with financial transactions or stock trading or with medical records, you're either able to deal with the fire hose of data, or with the u

> When you're dealing with financial transactions or stock trading or with medical records, you're either able to deal with the fire hose of data, or with the uptime requirements, or the scale of the data. Or not. But you might find that there is one stock market with a smaller trade volume than the others. Or one of the 50 hospitals in your district is smaller. If you can peel off a bunch of "early adopters" and make them guinea pigs, you can get some of the benefits of rapid development. You either need the buy in of the early adopters or be able to push them around. This happens all the time. The UK used to test their laws on the Scots before rolling them out to the rest of the country.