Table II.

Rating Definitions and Adapted Criteria for Describing the Facilitators and Barriers to Adoption of Ergonomic Solutions

Rating	Definitions
Primary Control	The person, group or organization with the main power to implement a solution (e.g. worker, contractor, both or other).
Adoption	Uptake of an innovation by the target audience based its presence and use in a worksite.
Facilitator (+)	Criteria: assists with or facilitates implementation of the solution.
Barrier (−)	Criteria: prevents, limits, restrains, or acts as barriers to implementation of the solution. Inhibits the adoption of the innovation.
Criteria	Definitions
Relative Advantage	The ability to project a relative advantage in the quality of the work with using the tool or equipment, productivity, quality effects, initial costs, durability or maintenance costs, and injury prevention. Based on the components of return on investment (ROI).
Usability	The extent to which a device is user-friendly, intuitive to use, quick to learn or master operation (trainability), easy to use, convenient, and useful.
Compatibility	The extent to which the innovation is compatible with the norms and practices of the subsystem.
Complexity	The extent to which the innovation is easy or difficult to introduce and use on a worksite and the extent to which it requires reorganization of the work process.
Trialability	The ability of an individual or organization to experiment with an innovation prior its adoption.
Observability	Refers to the transparency of the impact of a given innovation or device as compared to the regular method and provides a readily observable advantage.