Business Strategy and its consequent business objectives are shaped by a series of influencers, none of which should be ignored.
At the very highest level the Mission Statement of the business should at the very least set its direction. The Drivers, whether originating from perhaps competitive pressures of from legislative requirements, provides a means by which some prioritisation can be derived.
The Measures establish a quantitative basis from which relative success or failure of any strategic outcomes can be assessed whilst Capabilities describe what the business is either able or needs to be able to deliver.
The combination of understanding where the business is ultimately headed, what is important and on what time horizons, what the business is actually able to do coupled with a quantitative measure of what defines success enables a foundation from which a business strategy and specific objectives can be built.