That helped us leverage an existing network of millions of people without having to build our own infrastructure.
And it will be fairly easy to use more gas without having to build new power stations.
For new-wave telecoms firms, it provided a way of reaching the customer with advanced services without having to build a new network.
The hope is to provide the 2.6 billion people without toilets access to them without having to build prohibitively expensive sewers.
In addition, the soil here is unusually hard, making it easy to park and tow aircraft without having to build and maintain concrete or steel parking ramps.
"It may allow us to increase our capacity without having to build all these new power plants in places where people don't want them," Mr. Kessel said.
"We are able to model potential designs, and then simulate performance," he said, without having to build physical prototypes of each design.
MaxMyInterest allows them to raise money cheaply, and therefore to make more loans, without having to build a network of branches.The incentive to co-operate for the banks relinquishing cash is more complex.
Advances in computers and computer-aided design and manufacturing (CAD/CAM) software allowed Boeing to develop the 777 entirely on computers without having to build a physical mock-up of the airplane.
Mr. Allard said he hoped to make the game-development process for Xbox more efficient with software packages that help developers accomplish graphics and sound tasks without having to build the tools themselves, as many do.
Mall owners say it gives them the chance seize to increase rental space without having to build it, or to fill vacant stores until permanent tenants can be found.
