Flexibility principle definition including break down of areas in the definition. Analyzing the definition of key term often provides more insight about concepts. Flexibility principle can be defined as: Information system principle that prescribes an accounting system be able to adapt to changes in the company, its operations, and needs of decision makers. Flexibility principle proscribes a company to be flexible, something that seems obvious but flexibility can be more difficult then we first think and we do need to balance flexibility with the cost benefit principle. Flexibility means we want a system that can deal with changes in technology, competitive pressure, consumer tastes, and regulations.