Index: 02_data.html
===================================================================
--- 02_data.html	(revision 4524)
+++ 02_data.html	(revision 4525)
@@ -205,7 +205,7 @@
 a schematic sheet (either by copy or by reference), it is
 <i>instantiated</i>. A symbol has a creation-time cschem generated
 unique ID ("symbol UID"), and an instantiation-time cschem generated
-unique ID for each instance ("instance UID").
+unique ID for each instance ("instance UID", the uuid field of the direct group).
 
 <p>{des2:53}
 When an existing instance is moved within the sheet, renamed, its
@@ -342,7 +342,7 @@
 <p><table border=1 cellspacing=0>
 <tr><th colspan=3 bgcolor="#aaaaaa"> {des2:36} core attributes of a component
 <tr><th> attribute <th> value          <th> description
-<tr><td> uid       <td> unique ID      <td> cschem-generated UID (not persistent)
+<tr><td> uuid      <td> unique ID      <td> cschem-generated UID (not persistent)
 <tr><td> connect   <td> PORT:NET list  <td> non-graphical connection; PORT is an existing port's <i>name</i> within the component; NET is the <i>name</i> of a network
 <tr><td> source    <td> list of refs   <td> reference list to the concrete objects that contributed to this component; each item is an UID or an UID:key pair
 </table>
@@ -350,7 +350,7 @@
 <p><table border=1 cellspacing=0>
 <tr><th colspan=3 bgcolor="#aaaaaa"> {des2:37}<a id="des2:37"> core attributes of a port
 <tr><th> attribute <th> value           <th> description
-<tr><td> uid       <td> unique ID       <td> cschem-generated UID
+<tr><td> uuid      <td> unique ID       <td> cschem-generated UID
 <tr><td> name      <td> name of the port<td> user assigned port name
 <tr><td> connect   <td> name of a network<td> the given port is also connected to a network (non-graphical connection)
 <tr><td> chan      <td> channel name    <td> connection affinity, in case port is part of a bus-port
@@ -360,7 +360,7 @@
 <p><table border=1 cellspacing=0>
 <tr><th colspan=3 bgcolor="#aaaaaa"> {des2:38} core attributes of a bus-port
 <tr><th> attribute <th> value           <th> description
-<tr><td> uid       <td> unique ID       <td> cschem-generated UID
+<tr><td> uuid      <td> unique ID       <td> cschem-generated UID
 <tr><td> name      <td> name of the port<td> user assigned port name
 <tr><td> connect   <td> name of a bus-net<td> the given bus-port is also connected to a named bus (non-graphical connection)
 <tr><td> chan_rewrite<td> rewrite list  <td> see at <a href="#des2:78">chan rewrite</a>
@@ -392,7 +392,7 @@
 <table border=1 cellspacing=0>
 <tr><th colspan=3 bgcolor="#aaaaaa"> {des2:43} core attributes of a network
 <tr><th> attribute <th> value          <th> description
-<tr><td> uid       <td> unique ID      <td> cschem-generated UID
+<tr><td> uuid      <td> unique ID      <td> cschem-generated UID
 <tr><td> netname   <td> unique name    <td> cschem-specified project-unique network name
 <tr><td> name      <td> unique name    <td> user-specified sheet-unique network name
 <tr><td> chan      <td> bus-unique name<td> when a connection is made, this name is used to look up and bind channel(s)
@@ -448,7 +448,7 @@
 <p><table border=1 cellspacing=0>
 <tr><th colspan=3 bgcolor="#aaaaaa"> {des2:51} core attributes of a bus-net
 <tr><th> attribute <th> value          <th> description
-<tr><td> uid       <td> unique ID      <td> cschem-generated UID
+<tr><td> uuid      <td> unique ID      <td> cschem-generated UID
 <tr><td> name      <td> unique name    <td> user-specified unique bus-net name
 <tr><td> source    <td> list of refs   <td> reference list to the concrete objects that contributed to this component; each item is an UID or an UID:key pair
 </table>
@@ -488,7 +488,7 @@
 <p><table border=1 cellspacing=0>
 <tr><th colspan=3 bgcolor="#aaaaaa"> {des2:67} core attributes of a hub
 <tr><th> attribute <th> value          <th> description
-<tr><td> uid       <td> unique ID      <td> cschem-generated UID
+<tr><td> uuid      <td> unique ID      <td> cschem-generated UID
 <tr><td> name      <td> unique name    <td> user-specified unique hub name (similar to a component's name)
 <tr><td> source    <td> list of refs   <td> reference list to the concrete objects that contributed to this component; each item is an UID or an UID:key pair
 <tr><td> chan_rewrite<td> rewrite list <td> see at <a href="#des2:78">chan rewrite</a>