Democrat Hillary Rodham Clinton promised Thursday that as president she would improve health care quality by raising standards for providers, educating patients and requiring insurers to reward innovation. While rivals Barack Obama and John Edwards have proposed detailed health care overhaul plans, Clinton is taking an incremental approach. She started with a speech in June on reducing costs, followed by Thursday's address on quality, and will outline her plan for universal health care coverage next month. "My order here is deliberate," she said. "In order to forge a consensus on universal health care, we need to assure people that they will get the quality they expect at a cost they can afford."