. 2023 May 12;9(5):e16099. doi: 10.1016/j.heliyon.2023.e16099

Table 14.

Maturity levels for AM knowledge use on maintenance.

Business Model	Maturity level
Business Model	1: Emerging	2: Pacing	3: Hybrid	4: Partial replacement of CM	5: Disruptive
Aeronautics and aerospace					Production of parts/tools directly in point of use [11,77,113]
Paper and pulp industry			Local production of spare parts for machinery used in the pulp and paper industry [114]
Manufacturing and delivering high quality spare parts			Local distributed manufacturing (companies located within the business park) of high quality spare parts using AM, and their supply [115]