Off-the-shelf software makes you work its way. If the way you do things is part of why customers pick you, it's often worth having something built around it. If it isn't, we'll say so.
Or an old system, or three bits of software that won't talk to each other. Somebody in the business knows it can't go on. We sit down with whoever does the work, find out what actually happens, and build the thing that fits.


