Abstract: A coupling member for coupling modules with each other. The coupling member comprises a coupling portion, which in turn has a coupling rim and at least two hook members disposed on the coupling rim. The coupling portion substantially corresponds in its outer contour to a spherical segment of a sphere with a predetermined spherical radius, wherein the coupling rim represents a circular disk of the spherical segment. In this case, an outer radius of the coupling rim is smaller than or equal to the spherical radius. The at least two hook members, in a lateral view, at least partially follow the outer contour of the spherical cap of the spherical segment. The at least two hook members are engageable with the hook members of a coupling portion of a second coupling member.

Abstract: A coupling device for coupling modules with each other, comprising: a coupling surface, a primary coupling member and at least two secondary coupling members. The primary coupling member is disposed on the coupling surface. A coupling axis disposed parallel to a direction of action of earth's gravitational acceleration extends through the primary coupling member. The at least two secondary coupling members are configured to be complementary to each other and are disposed on the coupling face, and respectively have a predetermined distance from the coupling axis.

Abstract: A coupling member for coupling modules with each other. The coupling member comprises a coupling portion, which in turn has a coupling rim and at least two hook members disposed on the coupling rim. The coupling portion substantially corresponds in its outer contour to a spherical segment of a sphere with a predetermined spherical radius, wherein the coupling rim represents a circular disk of the spherical segment. In this case, an outer radius of the coupling rim is smaller than or equal to the spherical radius. The at least two hook members, in a lateral view, at least partially follow the outer contour of the spherical cap of the spherical segment. The at least two hook members are engageable with the hook members of a coupling portion of a second coupling member.

Abstract: A system renders a barcode on a graphical user interface by displaying content within a graphical user interface. The content includes a barcode representing at least a portion of the displayed content. The system detects a change associated with the content displayed within the graphical user interface. In response to the change associated with the content, the system automatically generates a barcode incorporating the change, and automatically updates and displays the barcode on the graphical user interface in association with the content. The barcode reflects the detected change.