Abstract: A device for calculating the density of blocks includes a block manufacturing machine. In the block manufacturing machine, blocks are formed on a pallet. The weight of the empty pallet is known and the weight of the pallet after being loaded with blocks is measured. The length and width of each block is known form the block mold. However, the height of each block is measure, preferably by a laser height measuring station. From the known quantities, the volume and total weight of the blocks on the pallet are known. From these measurements, the density can be calculated to ensure that a minimum density of the blocks is maintained.

Abstract: An apparatus for managing a job model workflow, the apparatus including a server computer including a processor and associated memory, a data store, the server computer connected to the data store and configured to execute computer readable instructions that, when executed, cause the server computer provide an application that can: receive from a user a request to create a job model, create a job model data structure in the data store corresponding to the job model, populate the data structure with a first data object representing one or more attributes of the job model, notify another user that feedback relating to the one or more attributes of the job model is requested, provide an interface for the another user to provide feedback, store received feedback in the data store, and provide the received feedback to the user.