Decision Support Systems serve not as much as  vision enhancers but as enhancers of your abilities of making decisions based on  the vision. Human abilities to juggle numbers and keep various relationships  among multiple parameters in mind are severely limited. Here come DSS. They  allow you to use such tools as scenarios (when you change some assumptions and  see what will happen to ALL parts you are interested in by providing formulas of  the corresponding relationships), optimization (when the system quickly finds  for you the best decision among many possible), and many others. Armed with such  tools (especially now available in mobile formats) you become super beings  (cyborgs, if you wish, as part human and part systems) far more advanced in your  mental abilities than those who doesn’t use special supporting systems. I  actually run a special course fully dedicated to DSS where students learn the  decision theory (on how to always make best decisions in all situations) as well  as how to arm yourselves with simple (and more advanced) DSS dramatically  enhancing your decision making abilities and outcomes in all your activities.  Recently one student emailed me that he got a job because of this knowledge. 
You can use this power throughout all your life  experiences no matter what you do and where you work. Although many industrial  systems of this kind are very expensive, there are some simple tools (like  spreadsheets in advanced forms of use) that already upgrade your abilities  significantly. Some of them we are learning in this course. This is kung fu of  modern life. The more work and understanding efforts of the material of this  week you apply – the more you will get out of it. This is the way to compete with AI  allowing the mankind to stay relevant.