--- a/+scheme/Scheme.m	Wed Aug 07 13:28:21 2019 +0200
+++ b/+scheme/Scheme.m	Wed Aug 07 15:23:42 2019 +0200
@@ -31,20 +31,10 @@
         %         depending on the particular scheme implementation
         [closure, penalty] = interface(obj,boundary,neighbour_scheme,neighbour_boundary,type)
 
-        % TODO: op = getBoundaryOperator()??
-        %   makes sense to have it available through a method instead of random properties
+        op = getBoundaryOperator(obj, opName, boundary)
+        H_b= getBoundaryQuadrature(obj, boundary)
 
         % Returns the number of degrees of freedom.
         N = size(obj)
     end
-
-    methods(Static)
-        % Calculates the matrcis need for the inteface coupling between
-        % boundary bound_u of scheme schm_u and bound_v of scheme schm_v.
-        %   [uu, uv, vv, vu] = inteface_coupling(A,'r',B,'l')
-        function [uu, uv, vv, vu] = interface_coupling(schm_u,bound_u,schm_v,bound_v)
-            [uu,uv] = schm_u.interface(bound_u,schm_v,bound_v);
-            [vv,vu] = schm_v.interface(bound_v,schm_u,bound_u);
-        end
-    end
 end