Acmena is a consulting engineering business working in the transportation and other safety-critical systems sectors. We apply human-centred systems engineering principles, processes and tools to ensure engineered systems meet critical performance objectives. We provide professional services in: - Systems Engineering - System Assurance - Requirements Elicitation and Management - Rail and Product Safety - Reliability, Availability, Maintainability, Safety (RAMS) - Human Factors - Human Systems Engineering and Integration - Rail Systems Train Control Technology such as Cab-based Signalling, CBTC, ETCS, ATP, ATO etc - Human-Centred Design and Usability Assessment - Licensing, Installation, Configuration, Training and Support for IBM Rational DOORS, DOORS Next Gen, RTC - Technical Management - Legislative and Engineering Standards - Competency Assessment