What are the processes of an expert to make a decision

From a software developer’s point of view, here are the process an expert follows to make a decision:

PRE DECISION

1. Have data sources including sensors, cameras, surveys, web data, commercial data, market information, company data
2. Have tools to integrate, search, sort, visualise, analyse, present pertinent information, separate facts from probabilities, specific diagnosis tools, tools which stimulate the expert (KM)
3. Collaborate with others

POST DECISION

1. Implement the decision (communications, automation)
2. Analyse results
3. Share the decision process as a case study for future users.