Southwest Airlines has long collected customer transaction data on ticket purchasing, check-in, and boarding to continually fine-tune the passenger experience and improve operational processes. But over time, as the airline pieced together transaction data, it discovered a data gap: Because many interactions occurred outside … See full Article at:  https://deloitte.wsj.com/cio/with-iot-the-skys-the-limit-at-southwest-01646415656