Which compensation model allows additional experts to be involved in a project on a temporary basis?

The compensation model that effectively allows for the involvement of additional experts on a temporary basis is the model based on a per diem or hourly basis. This approach provides flexibility, enabling organizations to bring in specialists or consultants as required without committing to a long-term financial arrangement.

When engaging experts on a per diem or hourly basis, organizations can hire them for specific tasks or projects based on the immediate need and duration of the work. This arrangement is beneficial in situations where the expertise is only necessary for a short time, allowing for efficient resource allocation and tailored expertise without the overhead of ongoing employment costs.

In contrast, other models, such as the professional fee plus expenses or retainers, typically imply a longer-term engagement or commitment, which may not align with the requirement for temporary involvement. The mixed methods of compensation may include varying terms but lack the specific focus on flexible, short-term expert involvement as effectively as a per diem or hourly model.

Therefore, using a per diem or hourly basis is most suitable for scenarios requiring the inclusion of additional experts on a temporary basis.