Some companies have found segregation using flexible physical areas to be a satisfactory alternative. For example, in a warehouse, a quarantine area can be designated around the goods simply by roping off the quarantine goods or by placing floor markings. This arrangement allows easy expansion or contraction of the area to meet changing volumes.It should be noted, however, that even physical separation will be ineffective in preventing mix-ups and contamination, unless accompanied by adequate support procedures and training of personnel.