Batching software is critical to the day-to-day efficiency of your plant. To ensure the utmost performance from your system, take advantage of manufacturers' add-on options. Following are some of the options that are available. Some systems offer a touch-sensitive screen--by merely touching the computer screen, the operator can control many plant functions. Many software companies are handling upgrades and technical assistance over telephone lines, through a modem. Optional software will allow you to convert units from English to metric and back at the touch of a button. Automatic moisture control software will reduce inconsistencies due to inaccurate aggregate moisture contents. Some software can allow one batchman to operate remote plants or operate plants from other offices. Another option allows the producer to see how much material has been used and how much is left in stock.