[request_definition] r = sub, dom, obj, act [policy_definition] p = sub, dom, obj, act [role_definition] g = _, _, _, (_, _) [policy_effect] e = some(where (p.eft == allow)) [matchers] m = g(r.sub, p.sub, r.dom) && r.dom == p.dom && r.obj == p.obj && \ (keyMatch(r.act, p.act) || keyMatch2(r.act, p.act) || keyMatch3(r.act, p.act) || keyMatch4(r.act, p.act) || keyMatch5(r.act, p.act) || globMatch(r.act, p.act))