The modular technology of development of the CAD expansions: protection   of the buildings from the lightning
  The modular technology of development of the problem-oriented CAD expansions is applied to a task of designing of protection of the buildings from the lightning with realization in program system TechnoCAD GlassX. The system model of the drawings of lightning protection is developed including the structured parametric representation (properties of objects and their interdependence, general settings and default settings) and operations with it, which efficiently automate designing 
Vladimir V. Migunov, Rustem R. Kafiyatullov, Ilsur T. Safin