Space Invaders

interactions. The communication diagram emphasizes the context and overall organization of the objects that interact. Here’s another way to look at the distinction: The sequence diagram is arranged according to time, the communication diagram according to space. Both deal with interactions among objects, and for that reason, each one is a type of interaction diagram. 158 Hour 10 What Is a Communication Diagram? An object diagram shows objects and their relationships with one another. A communication

meses: “[ir] al cine” (l. 8); “hacer deporte al aire libre” (l. 11-12); “[encontrarse] en el bar y [conversar]” (l. 14-15) – actividades de los “colegas de toda la vida ahora” (l. 2-3): “[ampliar] sus “redes sociales” (l. 6) (Facebook, Tuenti, My Space); “[atender] sus blogs en los que cuelgan todo tipo de vacuas reflexiones” (l. 6-7); “[descargar películas de] una página en Internet, P2P, donde están gratis hasta los estrenos más recientes.” (l. 9-10); “[bajar grupos musicales] de Youtube” (l. 10-11);