Table 3.

Mentioned unique disruptions based on category.

Disruption category	No. of unique disruptions	Disruptions
External	27
Environmental	8	Fire, earthquake, flood, natural disaster, hurricane, extreme climatic events, shifts in weather patterns, climate change
Political and legal	3	Changing regulations, sudden changes in political landscape, role of global non-profit and philanthropy organizations
Social and ethical	5	Covid-19, pandemics, terrorism, changing demographics, shocks that change ethical stances
Economic and technological	11	Modifications in the demanded volume of product(s), power or water outages, changes in availability of materials or parts, changes in cost of materials or parts, availability of investment capital, economic downturns/upturns, globalization, future markets, dynamic of technology and innovation, supplier bankrupt, uncertainty and dynamicity environment
Internal	31
Field	6	Machine faults / machine breakdown, sensor faults, screwdriving device wear, vacuum absorption, solenoid valve malfunction, dye stripping fault
Control	2	Control network fault, system connection failure
Operator	7	Fluctuation of processing time, labor tiredness, output quality flaws, bias of the pallet, labor shortage, social unrest, changes in workforce
Planning	9	Scheduled maintenance, delayed material supply, changed product routing, customer order reprioritization, rush order, order change, mass customization, poor material supply, order cancellation
Management	7	Product returns, new equipment installation, new production line configuration, new software installation, new product introduction, changes in business ownership, changed product line
Total	58