A computer based method for archiving 3D geometry information for a plurality of subjects, said 3D geometry information for a plurality of subjects being subject-specific three dimensional geometry information of a particular part of the animal or human body, the method comprising the steps of: - providing said 3D geometry information by capturing said 3D geometry information using imaging equipment, - organizing for each of said plurality of subjects said 3D geometry information according to a predetermined standard, thus obtaining organized 3D geometry information, wherein said organizing comprises vectorization based on a predefined world coordinate system; - analyzing said organized 3D geometry information of said plurality of subjects resulting in averaged 3D geometry information of said particular part of the body; and scalable characteristic components of said particular part of the body; such that for each of said plurality of subjects said organized 3D geometry information can be approximated by a combination of said scalable characteristic components relative to said averaged 3D geometry information; - comparing, for at least one out of said plurality of subjects, said organized 3D geometry information with said averaged 3D geometry information and determining ∘ a subset of said scalable characteristic components; and ∘ for each characteristic component out of said subset a scale factor corresponding to said characteristic component, for approximating to a given accuracy said organized 3D geometry information relative to said averaged 3D geometry information by a combination of said scalable characteristic components out of said subset, each characteristic component scaled with its corresponding scale factor; - storing, for at least one specific subject out of said plurality of subjects, said approximated organized 3D geometry information by storing ∘ said averaged 3D geometry information; ∘ said subset of said scalable characteristic components for said specific subject; and ∘ said scale factors for said specific subject and corresponding to said characteristic components out of said subset. - providing said 3D geometry information by capturing said 3D geometry information using imaging equipment, - organizing for each of said plurality of subjects said 3D geometry information according to a predetermined standard, thus obtaining organized 3D geometry information, wherein said organizing comprises vectorization based on a predefined world coordinate system; - analyzing said organized 3D geometry information of said plurality of subjects resulting in averaged 3D geometry information of said particular part of the body; and scalable characteristic components of said particular part of the body; such that for each of said plurality of subjects said organized 3D geometry information can be approximated by a combination of said scalable characteristic components relative to said averaged 3D geometry information; - comparing, for at least one out of said plurality of subjects, said organized 3D geometry information with said averaged 3D geometry information and determining ∘ a subset of said scalable characteristic components; and ∘ for each characteristic component out of said subset a scale factor corresponding to said characteristic component, for approximating to a given accuracy said organized 3D geometry information relative to said averaged 3D geometry information by a combination of said scalable characteristic components out of said subset, each characteristic component scaled with its corresponding scale factor; ∘ a subset of said scalable characteristic components; and ∘ for each characteristic component out of said subset a scale factor corresponding to said characteristic component, for approximating to a given accuracy said organized 3D geometry information relative to said averaged 3D geometry information by a combination of said scalable characteristic components out of said subset, each characteristic component scaled with its corresponding scale factor; - storing, for at least one specific subject out of said plurality of subjects, said approximated organized 3D geometry information by storing ∘ said averaged 3D geometry information; ∘ said subset of said scalable characteristic components for said specific subject; and ∘ said scale factors for said specific subject and corresponding to said characteristic components out of said subset. ∘ said averaged 3D geometry information; ∘ said subset of said scalable characteristic components for said specific subject; and ∘ said scale factors for said specific subject and corresponding to said characteristic components out of said subset.