1. A computer-implemented method, comprising: operating an execution environment comprising instances of application components and a registry containing entries that map names to instances of application components; wherein each registry entry is associated with a list of notification dependencies that specifies component instances to be notified when the registry entry changes; and upon receiving a command to display notification dependencies for the registry, generating a dependency graph containing nodes representing component instances and arrows between the nodes representing notification dependencies between the component instances; and outputting the dependency graph to a user.