Decision Trees Name Institutional affiliation Decision Trees Evidence based decisions Traditionally, the quality of decision making depended on the knowledge and experience of the decision maker. A manager with many years in a field was assumed to be a better manager or leader (Suher Hoyer, 2015). However, evidence based decision making is an emerging trend in business applied in various fields such as health care, manufacturing, engineering, design and marketing. As the name suggests, the practice require managers and other practitioners to base their decision on the best available scientific research or statistical evidence available. Consequently, businesses invest considerable resources on technology to facilitate the adoption of this approach. In the field of medicine for instance, following numerous cases of misdiagnosis, many healthcare facilities have adopted the Electronic Medical Records (EMR), a system that allows medical practitioners to access a patients health records from any place, therefore increasing the speed and efficiency of health care services (Hussain Qamar, 2016). In retail and manufacturing, firms use the Enterprise Resource Planning (ERP) to perform data mining from databases and warehouses. Past evidence gives the probability of success if a particular decision is implemented over the other. From the evidence, managers can draw