对以下语段进行润色：In contrast to online task assignment mechanisms offline task assignment does not apply to dynamic environments; it is based on pre-defined task and performer information for task assignment

In contrast to online task assignment mechanisms, offline task assignment is not suitable for dynamic environments. It relies on pre-defined task and performer information for task assignment and is unable to handle changes in tasks and performers within dynamic environments. This necessitates the need to re-run the algorithm in order to adapt to the new situation.