Maintenance is a much higher percentage of this total cost, so Dr Jonkers expects big savings through extending the concrete's service life.

BBC: Key test for re-healable concrete

Total Cost of Ownership including not only software hardware installation and maintenance costs, but also including recommended counterparts required to assemble a best of breed solution stack.

FORBES: Cyber Security Revisited (Part 2): Report Card Time

This is based on total cost of ownership factors including depreciation, financing, insurance, maintenance, repairs, fees and taxes and, of course, fuel consumption.

FORBES: The Most Cost-Effective Hybrid Cars