Every workplace presents several risks: some of them could have a low likelihood but a high severity, others could happen frequently, and they have a very low impact. Anyhow, all the detected risks found must be monitored independently of their likelihood and severity. The word “risk”, from the French “risqué”, in accord with the Oxford English Dictionary, could be defined as “A situation involving exposure to danger”. Although other definitions of risk are also trusty and reliable, like the one from the Occupational Health & Safety Advisory Services (OHSAS) that says: “Risk is a combination of the likelihood of an occurrence of a hazardous event or exposure and the severity of injury or ill health that can be caused by the event or exposure”, the most realistic definition of risk is the one according to the International Organization of Standardization publication ISO 31000:2009, that defines the risk as the "Effect of uncertainty on objectives".