"As one UX design manager in the cloud-computing industry described:

'The complexity…comes from what I'll delicately put as "legacy IT requirements." There's a lot of technical debt…We have a lot of data that is in disparate resources, and at some point, you can't make 10 calls to 10 separate data sources. You need to collate that data, clean it up, and put it in a better place. The cleanliness and the consolidation of the data is probably the most challenging thing…because you can imagine if a record set began being captured 15 or 20 years ago, it's in a very different place than a record set that we capture today, right? It's in an old legacy system, old legacy database. It's not structured; it's not containerized.' "