Causality models used in accidents are either traditional, caused by human errors, or more complex, caused by wrong interaction between components and systems errors. STAMP (System-Theoretic Accident Model and Processes) is a model of accident causality used in investigating potential accidents that can occur. In this case, issues are seen as results of inadequate control of the safety components used. Nowadays more powerful systems that analyse safety have been created. STPA (System-Theoretic Process Analysis) uses such techniques, being based on the STAMP model of causality. Once the cause is identified, STPA examines the system, creating a proper scenario that could solve the issue. Regarding technology, not only the safety and security of computers and isolated devices can be threatened, but also of entire complex information systems. As not all decisions made in an organisation are based on known rules, the analytical manager will examine in details the situation and anticipates potential issues that can occur. However. many decisions could have a great impact on some aspect of the organisation and cannot be easily reversed. Thus, modelling and simulating play the roles of preventive actions, being applied earlier for the design of the process, where real factual data is not available. It is an abstract representation, that includes all aspects of a process so its potential impact could be better analysed. Such a representation before implementing can be done through business process modeling (BPM). On one hand, there are indeed the deterministic systems that rely on the input data and are capable of predicting accurate output. On the other hand, there is the probabilistic system as well, which does not forecast with completely accuracy. However, both deterministic and probabilistic systems need some earlier actions that could prevent issues. Analysis and design count are among the most important activities done before starting-up a business. During analysing, one gets a better understanding over the potential of the business; a diagrammatic model ensuring the agreement between IT professionals and system users. System design aims to design the way in which the system will work, this being eventually followed by system building. Preventive healthcare or preventive medicine refers to the measures taken in order to prevent and treat diseases. As there is a wide range of diseases in the world, there is also a wide variety of factors that influence those health disorders, such as environment, genetic and lifestyle. Preventive healthcare relies on the anticipation of the diseases, before they take occur. Among these preventing methods, there are: However, these traditional healthcare strategies are not the only actions that could prevent health diseases.