When should the evaluation of a solution take place?

The evaluation of a solution should take place immediately after implementation and periodically afterward to ensure that the desired outcomes are being achieved and to identify any areas for improvement. Conducting an evaluation right after implementation allows for an assessment of whether the solution is functioning as intended and meeting its objectives.

Periodic evaluations following the implementation help in monitoring progress over time, thus allowing for timely adjustments or modifications if necessary. This continuous evaluation process not only ensures accountability but also fosters a culture of learning and adaptability within the organization.

In contrast, the other answer choices suggest more limited or infrequent evaluation timings that may overlook critical feedback and opportunities for enhancement. For example, relying solely on negative feedback or basing evaluations on a set annual schedule could result in missed chances for improvement and responsiveness to the needs of the organization or team.