The group's principal activity is to supply information, data services and software to satisfy the needs of the aviation industry, primarily airlines, airports and other aviation related companies. It delivers data and software by subscription from its passur (passive secondary surveillance radar) network of flight tracking systems. Passur is the engine that drives all present and future data, information, and solution products sold by the group. The group provides information services, solution services and maintenance services. Information services provide airline and airport customers with specific and timely information. Solution services include a series of decision support tools and software solutions and maintenance services are provided pursuant to contractual arrangements.