Could you elaborate on the comparison between Creo and CATIA? Are they both CAD software with similar functionalities, or do they serve distinct purposes in the design and engineering field? I'm curious to know how they stack up against each other in terms of user interface, features, and industry adoption. Do they cater to the same set of professionals, or are they targeted at different segments of the market? I'd appreciate it if you could provide some insights into their similarities and differences.