First of all warehouse usage depends on the conditions of a warehouse and/or warehousing space. Depending which types of goods are to be stored the warehousing space has to be equipped accordingly. To store chilled goods, for example, the warehouse needs to be equipped with a cooling system so the goods stored do not go off. If you want to use an external archive, a warehouse operator that offers professional archiving should be selected. Furthermore the warehouse usage is bound to security-related requirements prescribed by law. "Explosives", for example can only be stored in warehouses that are built at a certain distance away from residential areas and local roads. Strict regulations apply. Warehouses have to be built, equipped and secured so goods can be stored there. Trained staff assure appropriate storage. Store keepers are responsible for duly accepting, unloading and checking the goods. In addition, the conditions of a warehousing space such as temperature or humidity have to be adjusted accordingly. To keep track of where which article is located, warehouse management software is an important tool.