ConceptDraw Arrows10 Technology

How should diagramming software work? The answer is - Fast and easy. "Tree"- mode drawing works like that. Just select objects in your drawing and press Tree or Chain button to connect all of them just in one click. Your diagram looks professional and it took only a moment to draw.

IDEF1 standard

Use Case Diagrams technology. Using visual graphical objects IDEF1 standard allows to model information interrelations.