Users resist change, and this is amplified if BEAs are poorly defined,
developed and tested before deployment in field. Often, Engineering
utilizes local applications which are highly customized, and fit local
expectations, in disregard of global requirements (set by BU)
Risk of having critical information lost across the process of moving data
across different layers. Theoretically, this may happen because of
incomplete description of product features implemented during
development/implementation of IS application