San Jose-based networking giant Cisco said today that it has acquired Richards-Zeta Building Intelligence, a Santa Barbara firm which develops software used for managing building infrastructure. According to Cisco, Richards-Zeta's middleware will be used as part of a solution for allowing customers to maximize operations and energy efficiencies, to create greater energy savings, and to reduce their carbon footprint. Financial terms of the acquisition were not disclosed. Richards-Zeta Building Intelligence will become part of Cisco's Emerging Technologies Group, part of Cisco's Globalisation Centre East, reporting to Marthin De Beer. Cisco's Globalisation Centre East unit is based in Bangalore, India.