The self-regulation phenomenon and competitive market conditions have triggeredthe restructuring tendencies of various maritime stakeholders in organizational level. During this trend, professional understanding and innovative execution activities inshipping business has become key focus of enterprises in maritime field. In recentyears, especially the principal classification societies and independent maritimeconsultancies have offered to relevant shipping executives to adopt an integratedmanagement system (IMS) as an advance solution. In principle, the concept of IMSpractices in shipping business is based on combining internationally recognizedvoluntary standards with the mandatory maritime regulations that are mainly concernwith ship safety and the prevention of pollution from ships.In the early design phase of an IMS, cooperative efforts of maritime consultancies and relevant shipping executives targets to enable maximum improvement inmanagerial processes while reducing the costs and excessive bureaucracy. Aspotential clients, the third party groups such as cargo owners and contractedcharterers have closely monitored the performance effects of IMS integration into professional shipping companies. Therefore, the managerial efforts are extremelyvaluable for the purpose of benefit from IMS implementations, which increase thereputation of ship management companies and provide an enormous tradingadvantage in maritime transportation industry. This research develops a Risk Integrated Decision Support System (RIDSS) based on a multi-methodologicalbackground includes Fuzzy Axiomatic Design (FAD) and Fault Tree Analysis(FTA), as well as Analytic Network Process (ANP) and other principal MCDMmethods. The initial focus of the RIDSS is to reveal quantitative outcomes in order to encourage relevant shipping executives towards process-based integration of an IMSalso to enhance risk-based analytical modelling of managerial processes in shippingbusiness. The RIDSS consists of various modules such as database managementsystem (DBMS), model base management system (MBMS), FAD-based model selection interface (FAD-MSI), integrated process management module (IPMM),executive decision-making module (EDMM), and risk control and managementmodule (RCMM) with a high level of integrity. To demonstrate the proposed RIDSS,the mostly encountered managerial processes in commercial, technical, and operational levels of shipping business are then addressed and modelled as prototypeapplication illustrations. Besides decision aid to redesigning of process executionprocedures through IMS requirements, the RIDSS also enables an effective decisionmakingon managerial processes even considering the various risks of maritime transportation.