Abstract: A computer-implemented method and system automatically manages relationships between moving parts of a computer-aided design model. Two parts are selected, the parts being structurally independent of one another. One of the parts is determined to be a driving part and the other part is determined to be a driven part. A new position is applied to the driving part, and temporary constraints between the driving part and the driven part are added. A constraint solver is executed to move the two parts into solved positions. Additionally, after execution of the constraint solver, the added temporary constraints are removed.

Abstract: A system includes a first application and a storage layer running on a cloud computing device, where the first application includes a service layer to interface over a network with a browser application running on a client computing device to provide the browser application access to the first application and a tagging module to interface over a communication connector with a second application running on a remote computing device having a database. The service layer receives requests for data from the first application and provides the requested data from the database. The tagging module is configured to tag a record of the data in response to tag requests from the first application, where the record of the data is tagged by generating an item reference to the record to enable a customized view of the data. The storage layer is configured to store the item references.

Abstract: A wheel chock having a threaded portion at one end of the chock and extending from the chock, a lower surface of the threaded portion is spaced a certain distance from a lower surface of the chock itself, such that a knot formed below the extended portion would not extend beyond a plane defined by the lower surface of the chock. Alternatively, the extended threaded portion may extend to the lower surface of the chock, but the chock contains an internal cavity of sufficient size to house a knot in a line, without the knot extending beyond a plane defined by the lower surface of the chock. A traction layer may be fixed to the lower surface of the chock to provide additional traction or holding power.