The invention relates to a method for the computer-aided determination of a disassembly sequence (L) in the context of a maintenance process for a technical product (1) which is made up of a plurality of individual components (3-17). The method comprises the following steps: a) providing a
data set (D) with a three-dimensional product geometry (G) of the technical product (1) which comprises a partial geometry for each of the individual components (3-17), b) selecting a component (10) to be maintained within the product (1), c) automatically determining at least one contact chain (K1, K2,...), wherein the respective contact chain (K1) represents a
linear sequence of components (10, 9, 15, 16) in direct contact with one another, d) selecting at least one first subset (M1) of components which are in a common contact chain (K1, K2,...) with the component (10) to be maintained, e) automatically checking components of the first subset (M1) with regard to geometric
accessibility and forming a second subset from the successfully checked components, f) automatically checking components of the second subset (M2) with regard to their movability and forming a third subset (M3), g) automatically checking components of the third subset (M3) with regard to their ability to be disassembled and forming a fourth subset (M4), h) simulating the disassembly of a component (16) of the fourth subset (M4) and updating the product geometry (G1) to the state of the product (1) formed thereby, wherein the steps e), f), g) and h) are carried out within a three-dimensional
geometric simulation environment, wherein the steps d), e), f), g) and h) are repeatedly carried out on the basis of the respective current product geometry (G, G') within a loop (S) until the component (10) to be maintained is exposed, wherein a disassembly sequence (L) is defined by the sequence of individual disassembly measures in steps h).