This invention provides methods and systems, e. In an embodiment, this comprises managing an object having content, in a system having a dynamic policy selector configured with at least one analytic policy applied to evaluate the content of the object. The barcode reader is configured to determine a direction of movement of the carrier from at least one signal from the clock track detector and at least one signal from the reference detector. The spacers fill an entirety of the connecting portion, wherein a center portion of each of the two parallel portions is unfilled by the spacers.