Index: TODO
===================================================================
diff -u -N -rb337f38c9e541e733674aac902eddb0fe44c0164 -rea3bbe8b1039c45baa2c027c005151e04e57d4b1
--- TODO	(.../TODO)	(revision b337f38c9e541e733674aac902eddb0fe44c0164)
+++ TODO	(.../TODO)	(revision ea3bbe8b1039c45baa2c027c005151e04e57d4b1)
@@ -4524,6 +4524,9 @@
   for consistencey with "nsf::my" and "nsf::dispatch"
   which uses "-system" as well
 
+nx.tcl:
+- removed "info is .." since it might raise more questions than it solves
+
 ========================================================================
 TODO:
 
Index: doc/next-migration.html
===================================================================
diff -u -N -r56f48a605e58baed9ed8d0f4d43cd704bf34811d -rea3bbe8b1039c45baa2c027c005151e04e57d4b1
--- doc/next-migration.html	(.../next-migration.html)	(revision 56f48a605e58baed9ed8d0f4d43cd704bf34811d)
+++ doc/next-migration.html	(.../next-migration.html)	(revision ea3bbe8b1039c45baa2c027c005151e04e57d4b1)
@@ -5307,8 +5307,12 @@
 .nx-placeholder {color: #AF663F; font-weight: normal; font-style: italic;}
 .nx-variable    {color: #AF663F; font-weight: normal; font-style: normal;}
 </style>
-<pre class='nx'><span class='nx-comment'># Check if object is a class
-</span><span class='nx-placeholder'>/obj/</span> <span class='nx-keyword'>info</span> is <span class='nx-keyword'>class</span></pre></div></div></div></td>
+<pre class='nx'><span class='nx-keyword'>cd</span> <span class='nx-comment'># Check if object is an NX class
+</span><span class='nx-placeholder'>/obj/</span> has type ::nx::Class
+
+<span class='nx-comment'># Check if object is a class in one of the
+</span><span class='nx-comment'># NSF object systems
+</span>::nsf::is <span class='nx-keyword'>class</span> <span class='nx-placeholder'>/obj/</span></pre></div></div></div></td>
 </tr>
 <tr>
 <td align="left" valign="middle"><div><div class="listingblock">
@@ -5334,8 +5338,12 @@
 .nx-placeholder {color: #AF663F; font-weight: normal; font-style: italic;}
 .nx-variable    {color: #AF663F; font-weight: normal; font-style: normal;}
 </style>
-<pre class='nx'><span class='nx-comment'># Check if object is a metaclass
-</span><span class='nx-placeholder'>/obj/</span> <span class='nx-keyword'>info</span> is <span class='nx-keyword'>metaclass</span></pre></div></div></div></td>
+<pre class='nx'><span class='nx-comment'># Check if class is an NX metaclass
+</span><span class='nx-keyword'>expr</span> {[<span class='nx-placeholder'>/cls/</span> <span class='nx-keyword'>info</span> heritage ::nx::Class] ne <span class='nx-string'>""</span>}
+
+<span class='nx-comment'># Check if object is a metaclass in one of the
+</span><span class='nx-comment'># NSF object systems
+</span>::nsf::is <span class='nx-keyword'>metaclass</span> <span class='nx-placeholder'>/obj/</span></pre></div></div></div></td>
 </tr>
 <tr>
 <td align="left" valign="middle"><div><div class="listingblock">
@@ -5362,7 +5370,7 @@
 .nx-variable    {color: #AF663F; font-weight: normal; font-style: normal;}
 </style>
 <pre class='nx'><span class='nx-comment'># Check if object is a baseclass of an object system
-</span><span class='nx-placeholder'>/obj/</span> <span class='nx-keyword'>info</span> is baseclass</pre></div></div></div></td>
+</span>::nsf::is baseclass <span class='nx-placeholder'>/obj/</span></pre></div></div></div></td>
 </tr>
 <tr>
 <td align="left" valign="middle"><div><div class="listingblock">
@@ -6264,7 +6272,7 @@
 <div id="footer">
 <div id="footer-text">
 Version 2.2<br />
-Last updated 2013-05-23 10:37:14 CEST
+Last updated 2013-05-28 16:04:09 CEST
 </div>
 </div>
 </body>
Index: doc/next-migration.txt
===================================================================
diff -u -N -r56f48a605e58baed9ed8d0f4d43cd704bf34811d -rea3bbe8b1039c45baa2c027c005151e04e57d4b1
--- doc/next-migration.txt	(.../next-migration.txt)	(revision 56f48a605e58baed9ed8d0f4d43cd704bf34811d)
+++ doc/next-migration.txt	(.../next-migration.txt)	(revision ea3bbe8b1039c45baa2c027c005151e04e57d4b1)
@@ -2485,17 +2485,25 @@
 ----------------
 |[source,tcl]
 ----------------
-# Check if object is a class
-/obj/ info is class
+cd # Check if object is an NX class
+/obj/ has type ::nx::Class
+
+# Check if object is a class in one of the 
+# NSF object systems
+::nsf::is class /obj/
 ----------------
 |[source,tcl]
 ----------------
 /obj/ ismetaclass /cls/
 ----------------
 |[source,tcl]
 ----------------
-# Check if object is a metaclass
-/obj/ info is metaclass 
+# Check if class is an NX metaclass
+expr {[/cls/ info heritage ::nx::Class] ne ""}
+
+# Check if object is a metaclass in one of the 
+# NSF object systems
+::nsf::is metaclass /obj/
 ----------------
 |[source,tcl]
 ----------------
@@ -2504,7 +2512,7 @@
 |[source,tcl]
 ----------------
 # Check if object is a baseclass of an object system
-/obj/ info is baseclass
+::nsf::is baseclass /obj/
 ----------------
 |[source,tcl]
 ----------------
Index: doc/tutorial2.html
===================================================================
diff -u -N -rbe3ba45f303ed61511b034e73e0bba5d10d10982 -rea3bbe8b1039c45baa2c027c005151e04e57d4b1
--- doc/tutorial2.html	(.../tutorial2.html)	(revision be3ba45f303ed61511b034e73e0bba5d10d10982)
+++ doc/tutorial2.html	(.../tutorial2.html)	(revision ea3bbe8b1039c45baa2c027c005151e04e57d4b1)
@@ -609,7 +609,7 @@
       <it># But we only remove matching playernames of type "Player". We do</it>
       <it># not want to remove another club member type who has the same</it>
       <it># name.</it>
-      <tt>if</tt>{[$player info is type Player] && [$player name] eq $playername} {
+      <tt>if</tt>{[$player info has type Player] && [$player name] eq $playername} {
         <it># We simply 'move' the player object to the destination team.</it>
         <it># Again we use a unique autoname in the new scope</it>
         $player <tt>move</tt> ${destinationTeam}::[$destinationTeam <tt>autoname</tt> player%02d]
@@ -629,7 +629,7 @@
   SoccerTeam <tt>method</tt> printPlayers {} {
     <tt>puts</tt> "Players of ${:name}:"
     <tt>foreach</tt> m [<tt>:info</tt> children] {
-      <tt>if</tt> {[$m info is type Player]} {<tt>puts</tt> "  [$m name]"}
+      <tt>if</tt> {[$m info has type Player]} {<tt>puts</tt> "  [$m name]"}
     }
   }
 </pre>
Index: library/lib/nxdoc-core.tcl
===================================================================
diff -u -N -r5d1617640ad71fd52b069f81cfcadbe4cbb6f2a2 -rea3bbe8b1039c45baa2c027c005151e04e57d4b1
--- library/lib/nxdoc-core.tcl	(.../nxdoc-core.tcl)	(revision 5d1617640ad71fd52b069f81cfcadbe4cbb6f2a2)
+++ library/lib/nxdoc-core.tcl	(.../nxdoc-core.tcl)	(revision ea3bbe8b1039c45baa2c027c005151e04e57d4b1)
@@ -101,7 +101,7 @@
 	set base "${:prefix}::[namespace tail $mixin]"
 	if {[::nsf::object::exists $base]} {
 	  set scope [expr {[$mixin scope] eq "object" && \
-			       [$base info is class]?"class":""}]
+			       [$base info has type ::nx::Class]?"class":""}]
 	  dict lappend :active_mixins $base $mixin
 	  $base eval [list : -system {*}$scope mixin add $mixin]
 	}
@@ -112,7 +112,7 @@
       dict for {base mixins} ${:active_mixins} {
 	foreach m $mixins {
 	  set scope [expr {[$m scope] eq "object" && \
-			       [$base info is class]?"class":""}]
+			       [$base info has type ::nx::Class]?"class":""}]
 	  $base {*}$scope mixin delete $m
 	}
       }
Index: library/lib/nxdoc-dc.tcl
===================================================================
diff -u -N -rd79efb10b92ad2045196990af50bc042e60b88f4 -rea3bbe8b1039c45baa2c027c005151e04e57d4b1
--- library/lib/nxdoc-dc.tcl	(.../nxdoc-dc.tcl)	(revision d79efb10b92ad2045196990af50bc042e60b88f4)
+++ library/lib/nxdoc-dc.tcl	(.../nxdoc-dc.tcl)	(revision ea3bbe8b1039c45baa2c027c005151e04e57d4b1)
@@ -534,7 +534,7 @@
     :property processed_section  {
       :public method assign {domain prop value} {
 	set current_entity [$domain current_entity]
-	set scope [expr {[$current_entity info is class]?"class":""}]
+	set scope [expr {[$current_entity info has type ::nx::Class]?"class":""}]
 	if {[$domain eval [list info exists :$prop]] && [:get $domain $prop] in [$current_entity eval [list : -system {*}$scope info mixin classes]]} {
 	  $current_entity eval [list : -system {*}$scope mixin delete [:get $domain $prop]]
 	}
@@ -643,7 +643,7 @@
       # 	${:current_entity} {*}$scope mixin delete ${:processed_section}
       # }
 
-      set scope [expr {[${:current_entity} info is class]?"class":""}]
+      set scope [expr {[${:current_entity} info has type ::nx::Class]?"class":""}]
       set mixins [${:current_entity} {*}$scope info mixin classes]
       if {${:processed_section} in $mixins} {
 	set idx [lsearch -exact $mixins ${:processed_section}]
Index: library/nx/nx.tcl
===================================================================
diff -u -N -rbca161db07ae2fe223f49b5aa5e44e7149cf9e67 -rea3bbe8b1039c45baa2c027c005151e04e57d4b1
--- library/nx/nx.tcl	(.../nx.tcl)	(revision bca161db07ae2fe223f49b5aa5e44e7149cf9e67)
+++ library/nx/nx.tcl	(.../nx.tcl)	(revision ea3bbe8b1039c45baa2c027c005151e04e57d4b1)
@@ -710,7 +710,7 @@
     :alias "info has mixin"        ::nsf::methods::object::info::hasmixin
     :alias "info has namespace"    ::nsf::methods::object::info::hasnamespace
     :alias "info has type"         ::nsf::methods::object::info::hastype
-    :alias "info is"               ::nsf::methods::object::info::is
+    #:alias "info is"               ::nsf::methods::object::info::is
     :alias "info name"             ::nsf::methods::object::info::name
     :alias "info object filter guard"     ::nsf::methods::object::info::filterguard
     :alias "info object filter methods"   ::nsf::methods::object::info::filtermethods
Index: tests/parameters.test
===================================================================
diff -u -N -r9dd5024eae672704fae601972a3111ab221750e7 -rea3bbe8b1039c45baa2c027c005151e04e57d4b1
--- tests/parameters.test	(.../parameters.test)	(revision 9dd5024eae672704fae601972a3111ab221750e7)
+++ tests/parameters.test	(.../parameters.test)	(revision ea3bbe8b1039c45baa2c027c005151e04e57d4b1)
@@ -50,12 +50,12 @@
   ? {::nsf::object::exists o1000} 0
   
   ? {::nsf::is class C} 1
-  ? {C info is class} 1
+  ? {C info has type ::nx::Class} 1
 
   ? {::nsf::is baseclass ::nx::Object} 1
-  ? {::nx::Object info is baseclass} 1
+  #? {::nx::Object info is baseclass} 1
   ? {::nsf::is baseclass C} 0
-  ? {C info is baseclass} 0
+  #? {C info is baseclass} 0
 
   ? {::nsf::is class ::nx::Object} 1
   ? {::nsf::is ::nx::Object class} {invalid value constraints "::nx::Object"}
Index: tests/plain-object-method.test
===================================================================
diff -u -N -r98b60429d7f10bf637fa2cfa2bb88d4069e2445f -rea3bbe8b1039c45baa2c027c005151e04e57d4b1
--- tests/plain-object-method.test	(.../plain-object-method.test)	(revision 98b60429d7f10bf637fa2cfa2bb88d4069e2445f)
+++ tests/plain-object-method.test	(.../plain-object-method.test)	(revision ea3bbe8b1039c45baa2c027c005151e04e57d4b1)
@@ -11,7 +11,7 @@
   ? {o filter f} "::o: unable to dispatch method 'filter'"
 
   ? {lsort [o info object methods]} "f"
-  ? {lsort [o info]} "valid submethods of ::o info: children class has info is lookup name object parameter parent precedence variable vars"
+  ? {lsort [o info]} "valid submethods of ::o info: children class has info lookup name object parameter parent precedence variable vars"
 }
 
 package require nx::plain-object-method
@@ -37,5 +37,5 @@
   ? {o info filter methods} ""
 
   ? {lsort [o info object methods]} "f foo"
-  ? {lsort [o info]} "valid submethods of ::o info: children class filter has info is lookup method methods mixin name object parameter parent precedence variable vars"
+  ? {lsort [o info]} "valid submethods of ::o info: children class filter has info lookup method methods mixin name object parameter parent precedence variable vars"
 }
Index: tests/submethods.test
===================================================================
diff -u -N -r98b60429d7f10bf637fa2cfa2bb88d4069e2445f -rea3bbe8b1039c45baa2c027c005151e04e57d4b1
--- tests/submethods.test	(.../submethods.test)	(revision 98b60429d7f10bf637fa2cfa2bb88d4069e2445f)
+++ tests/submethods.test	(.../submethods.test)	(revision ea3bbe8b1039c45baa2c027c005151e04e57d4b1)
@@ -229,7 +229,7 @@
 
   # defaultcmd has to return also subcmds of other shadowed ensembles
   ? {lsort [o1 info has]} "valid submethods of ::o1 info has: mixin namespace something type"
-  ? {lsort [o1 info]} "valid submethods of ::o1 info: children class has info is lookup name object parameter parent precedence variable vars"
+  ? {lsort [o1 info]} "valid submethods of ::o1 info: children class has info lookup name object parameter parent precedence variable vars"
 
   # returning methodpath in ensemble
   ? {o1 info has something path} "info has something path"