User Interface and Application Domains
 
  • User Interface Domain

  • The user interface concerns with different modalities and medium the user is interacting with.
    For GUI interface, that typically concerns with window related gadgets.
     
  • Application Domain

  • The application domain includes entities and relationships among them.
    For instance, for word processing software, its application domain includes documents, paragraphs, sentences and words while a paragraph is typically composed of multiple sentences.