Clearly structured contents an appealing web design are necessary preconditions for effective (and efficient) transport of the desired messages to the target audience.
At least as important is, that the website is visited in sufficient frequence, of coures especially by the intended target audience. We can help here with experience and appropriate methods and tools for analysis and evaluation...
Example: Search for 'elektronische Akte' in google (Look for www.kanzleirechner.de hits)