Tex Toll Services (TTS), a wholly owned subsidiary of CintraUS, a leading private developer of transport infrastructure, has contracted with SLI Global Solutions (SLI) to provide Independent Verification and Validation (IV&V) oversight services for its Back Office System (BOS) Project. The contract was finalized on February 22, 2011, as SLI’s IV&V activities began onsite in Austin with TTS. The BOS is a state-of-the-art e ..