Sometimes the foundations of openEHR can be difficult to understand especially in our "now" world.
There is a lot of specific information on openEHR on this website but without the proper context it can make the specifications seem overly complex. This isn't the reality and in fact these specifications are actually quite simple in the scope of health information. There are many textbooks and papers that can help with the study of information theory and an understanding of openEHR foundations. I believe that it may help newcomers to spend sometime taking advantage of YouTube and learning about information in general by viewing Gary Marchionini's lectures from UNC at Chapel Hill such as this one These are not healthcare specific but I believe that they can help those new to health information management and systems design understand more about why openEHR specifications are designed the way they are.