Embodiments of the present invention address deficiencies of the art in respect to activity thread management and provide a method, system and computer program product for activity objectification for non-activity objects in an activity-centric collaboration tool. In an embodiment of the invention, a method for activity objectifying non-activity/task objects in an activity-centric collaboration tool can be provided. The method can include selecting a non-activity/task object in an activity thread for an activity map of the activity-centric collaboration tool, and associating an activity attribute with the selected non-activity/task object. The non-activity/task object further can be decorated with a user interface control corresponding to a value for the activity attribute, and a state for the user interface control can be changed responsive to changes in the value for the activity attribute.