What are the requirements to calculate Automated Function Points?  Are there limitations? How can we use this measure and for what use cases?

• En français: Les développeurs rêvent-ils de points de fonction automatisés ? (II)
• In English: Do Developers Dream of Automated Function Points? (II)
• En Castellano: ¿Sueñan los desarrolladores con Puntos de Función Automatizados? (II)