title: Systèmes réactifs > We believe that a coherent approach to systems architecture is needed, and we believe that all necessary aspects are already recognised individually: we want systems that are Responsive, Resilient, Elastic and Message Driven. We call these Reactive Systems. > > *[The reactive manifesto](http://www.reactivemanifesto.org/)* ([cache](/david/cache/00c9fbe2bf8fb00270b36167878d952a/)) Je me demande dans quelle mesure ce type de système est atteignable sans introduire une trop grande complexité/intelligence.