So for the business user, BPM tools sometimes make it too complicated to define or to modify a business process.

因此对于业务用户而言，BPM工具有时让定义或修改业务流程变得过于复杂。

youdao

Microsoft benefits, even if the reason for the lack of migration tools is simply that the PST files are too complicated and messy to be easily converted to industry-standard mail files that can be read by other programs.

BBC: Caught in the Windows to Mac rift