Can you show me an example of how to construct a decision tree for a hospital trying to decide on purchasing a new Electronic Health Record system or keep the current one and fake numbers can be used as an example based on the following information:

Construct a decision tree that includes one decision node (purchase a new EHR system) or maintain the status quo (retain the existing EHR system). There are the two EHR systems under consideration by Bright Road Health Care System, eMed and Patient Data System (PDS). For each EHR system under consideration, you, as the consultant, will be looking to determine the likelihood (probability) that the system will: fully meet the organization's needs; partially meet the organization's needs; or not meet the organization's needs. You will need to come up with the probabilities using information obtained from the scenario, as well as information gleaned from credible sources.