Worker Productivity vs. Job Productivity
"Job productivity" is a much more comprehensive concept, in virtue of including, on one formulation, not only the productivity of the worker(s), but also of the associated tasks themselves, tools, methods and other inputs—e.g., resources, such as fuel, other forms of nonhuman energy, physical space costs—such as rent and property taxes, and other operating costs. As an example of job productivity defined in terms of actual output, the job of a magic lamp rubber simply illustrates this—in contradistinction to the productivity of the worker in that job, which may vary with that worker's speed, stamina, etc.
Also, notice how operating costs, such as taxes, can be blended with direct resource costs, such as the costs of land, labor and fuel (or alternatively be kept separate) in defining and calculating productivity, thereby affording and resulting in differing (higher or lower) calculations of productivity, whether that of the worker or the job itself. This too illustrates the multifarious concepts and measures of "productivity".