[CORRECTION, May 25, 2016: The original version of this article omitted and misstated facts about the background and accomplishments of Rastko Ilic from tech firm Thomalex. The version below is updated.]
Building a great online booking interface is hard. Dealing with multiple platforms in the mobile era adds complexity. Making a buck on bookings may be the biggest challenge of all. Business travel entrepreneurs typically can map all that out. If they don't have industry experience, though, they can stumble in integrating with external systems in the business travel world. Application programming interfaces are making . . .