14. The computer-program product of claim 11 , wherein: to identify the multiple task routines, the first request comprises an instance log identifier of an instance log that documents a performance of the multiple tasks of the first job flow; the instance log comprises a task routine identifier for each task routine of the multiple task routines; and the processor is caused to perform operations comprising: store a plurality of instance logs within the at least one federated area; use the instance log identifier of the first request to retrieve the instance log from among the plurality of instance logs; and use the task routine identifiers of the instance log to retrieve the multiple task routines from among the plurality of task routines.
14. The computer-program product of claim 11 , wherein: to identify the multiple task routines, the first request comprises an instance log identifier of an instance log that documents a performance of the multiple tasks of the first job flow; the instance log comprises a task routine identifier for each task routine of the multiple task routines; and the processor is caused to perform operations comprising: store a plurality of instance logs within the at least one federated area; use the instance log identifier of the first request to retrieve the instance log from among the plurality of instance logs; and use the task routine identifiers of the instance log to retrieve the multiple task routines from among the plurality of task routines. 16. The computer-program product of claim 14 , wherein: the instance log comprises a job flow identifier of a first job flow definition of the first job flow that comprises a flow task identifier of multiple flow task identifiers for each task of the multiple tasks; and the processor is caused to: use the job flow identifier to retrieve the first job flow definition from among the plurality of job flow definitions; use the multiple flow task identifiers of the first job flow definition to retrieve at least a most recent version of each task routines of the multiple task routines from among the plurality of task routines; and for each task routine of the multiple task routines in which the task routine is not the most recent version, augment the corresponding macro with an indication of the most recent version to enable the requesting device to indicate that the task routine visually presented in the visualization is not the most recent version.