A device for application to a receiving surface to analyse an elasticity of said receiving surface across a plurality of different linear sections of said surface, the device comprising - a carrier, having a surface; - an arrangement comprising: - three or more surface interaction elements (14, 16) mounted to the carrier surface, each one of the surface interaction elements being operable to perform only one of an actuation or pressure sensing function at any one time, and being spatially separated from one another and distributed in two dimensions across the carrier surface; - a first surface interaction element operable to perform an actuation function; and - a second surface interaction element operable to perform a pressure sensing function; and - a controller, operatively coupled with the surface interaction elements (14, 16), and adapted to: - control the first surface interaction element to induce a deformation in the receiving surface at a first contact point; - control the second surface interaction element to measure a pressure and/or force exerted by the receiving surface at a second, spatially separated, contact point, to enable determination of a measure of an elasticity of the receiving surface between the first and second points; and - control one or more further surface interaction elements, simultaneously with at least the second and/or first element, to either induce a deformation in, or measure a pressure and/or force exerted by, the receiving surface at a further one or more contact points, in order thereby to enable determination of a measure of elasticity between each of said further one or more points, and either the second or first contact point. - a carrier, having a surface; - an arrangement comprising: - three or more surface interaction elements (14, 16) mounted to the carrier surface, each one of the surface interaction elements being operable to perform only one of an actuation or pressure sensing function at any one time, and being spatially separated from one another and distributed in two dimensions across the carrier surface; - a first surface interaction element operable to perform an actuation function; and - a second surface interaction element operable to perform a pressure sensing function; and - three or more surface interaction elements (14, 16) mounted to the carrier surface, each one of the surface interaction elements being operable to perform only one of an actuation or pressure sensing function at any one time, and being spatially separated from one another and distributed in two dimensions across the carrier surface; - a first surface interaction element operable to perform an actuation function; and - a second surface interaction element operable to perform a pressure sensing function; and - a controller, operatively coupled with the surface interaction elements (14, 16), and adapted to: - control the first surface interaction element to induce a deformation in the receiving surface at a first contact point; - control the second surface interaction element to measure a pressure and/or force exerted by the receiving surface at a second, spatially separated, contact point, to enable determination of a measure of an elasticity of the receiving surface between the first and second points; and - control one or more further surface interaction elements, simultaneously with at least the second and/or first element, to either induce a deformation in, or measure a pressure and/or force exerted by, the receiving surface at a further one or more contact points, in order thereby to enable determination of a measure of elasticity between each of said further one or more points, and either the second or first contact point. - control the first surface interaction element to induce a deformation in the receiving surface at a first contact point; - control the second surface interaction element to measure a pressure and/or force exerted by the receiving surface at a second, spatially separated, contact point, to enable determination of a measure of an elasticity of the receiving surface between the first and second points; and - control one or more further surface interaction elements, simultaneously with at least the second and/or first element, to either induce a deformation in, or measure a pressure and/or force exerted by, the receiving surface at a further one or more contact points, in order thereby to enable determination of a measure of elasticity between each of said further one or more points, and either the second or first contact point.