A method for initializing variables within class objects in a statically loaded object-oriented programming language. A scheduler within an external memory interface assigns the memory access slots to the respective network switch ports according to a programmed sequence written into an assignment table memory from an external programmable data storage device. The outer walls of the cassette includes mechanical indexing locations to ensure appropriate positioning when robotically removing storage racks or plates from the cassette. Thereafter, the bids forming this combination can be declared the winning bids of the auction, reverse auction or exchange. Finally, the performance parameters are measured by analysing the image analysis features. The first magnetic field generator together with the lens barrel is movable between the first and second supports under magnetic forces generated by the second magnetic field generator.