Caused by:

  • A lack of information
  • Misinformation
  • Different interpretations of an issue

Example

The following requirement is defined for a car entertainment system:

  • R4: The DVD player shall be able to handle re-writeable CDs (CD-RW) and DVDs (DVD-RW).

A stakeholder disagrees with the requirement. In his opinion, it does not make sense for a DVD player in the car to be able to write data onto CDs or DVDs