Implementing a P3O is a challenge as it can be seen as an overhead whereas when it is done properly it can add real value to the organisation. However, meeting all the requirements of P3O is very labour intensive, costly and prone to error without employing a tool that supports the PM3 principles outlined above.
Without the tool to support P3O, the business case becomes harder to justify to senior management. The other real benefit of a tool like PM3 is that it helps drive the organisational change that is required to implement P3O. For example, if PM3 is implemented and configured to an organisation’s P3O requirements then project team members, managers and senior stakeholders are ‘encouraged’ to follow the process.