The Cambridge, Massachusetts-based Cambridge Technology Group Inc has set up a sister company, Cambridge Technology Partners as an open systems integrator to compete against the likes of the Big Six accountancy firms, promising to be quicker off the mark implementing strategic applications: the start-up says it is taking a completely pragmatic approach and has not aligned itself with any particular technology or system; interoperability seems to be its chief thrust; it is being run by former president of Concurrent Computer Corp James Sims.