OASES is a comprehensive aviation maintenance and engineering management software platform for airlines, MROs, and CAMOs operating in regulated environments. Built specifically for aviation, OASES supports the full aircraft maintenance lifecycle, helping organizations manage maintenance planning, continuing airworthiness, inventory, reliability, and compliance within a single integrated system. OASES enables engineering teams to plan, track, and control maintenance activities while maintaining alignment with EASA, FAA, UK CAA, and other global aviation authority requirements. The platform supports mixed fleets and complex operational structures, making it suitable for both single and multi-site operations. Key capabilities include maintenance and work order management, CAMO oversight, inventory control, reliability analysis, technical records, and compliance reporting. OASES centralises critical maintenance data, improves visibility across engineering operations, and supports audit readiness and regulatory confidence.