That's because its behavior reflects the software's organization and not the way people think. Software gathers everything into identical little columns and fields, and performs tasks in one mode at a time. People generally don't think or act that way, so working with software can be really bothersome. Probably the most insidious change digital technology is making to the business landscape is how it has come between people, acting as a middleman in every business relationship. Your customers probably like your salespeople more than they like your software.
Managers communicate with their staff using email and planning software.
Marketing interacts with the advertising agency using project management software. Finance uses ERP software for banking and operations. Human Resources posts hiring notices to job bulletin boards on the World Wide Web. Product developers swap ideas with university researchers via databases and online discussion groups. And every one of your vendors, colleagues, customers and competitors is doing the same thing.