anchor.diff:  %% optional callbacks for application behaviour
   -export([prep_stop/1, start_phase/3]).
   %% export the ocs private API
  --export([install/1]).
  +-export([install/0, install/1]).
   
   -include_lib("inets/include/mod_auth.hrl").
   -include("ocs.hrl").
  
positive.code: force([]) ->
  	ok.
  
  
negative.code: %%----------------------------------------------------------------------
  %%  The ocs private API
  %%----------------------------------------------------------------------
  
  -spec install() -> Result
  	when
  		Result :: {ok, Tables},
  		Tables :: [atom()].
  %% @equiv install(Nodes)
  install() ->
  	install([node()]).
  
  -spec install(Nodes) -> Result
  	when
  