how to represent a 2-dimensional bar code,for example ,WeChat is a popular social app in China,each user can have their own 2-dimensional bar code,we can add friends from scanning this code, could I represent this in ContactPoint by add a self-defined value in ContactPointSystem
ContactPointSystem is not extensible. However, what you can do is omit the system element and instead include an extension that defines your new type of contact point. It would be a modifier extension, I think (changes how you'd interpret ContactPoint.value). We should probably define a standard one. You could submit a change proposal
how to represent a 2-dimensional bar code,for example ,WeChat is a popular social app in China,each user can have their own 2-dimensional bar code,we can add friends from scanning this code, could I represent this in ContactPoint by add a self-defined value in ContactPointSystem
ContactPointSystem is not extensible. However, what you can do is omit the system element and instead include an extension that defines your new type of contact point. It would be a modifier extension, I think (changes how you'd interpret ContactPoint.value). We should probably define a standard one. You could submit a change proposal