diff --git a/en/defguide5/src/ch06.xml b/en/defguide5/src/ch06.xml
index 074f51b3a..daa5fe960 100644
--- a/en/defguide5/src/ch06.xml
+++ b/en/defguide5/src/ch06.xml
@@ -225,14 +225,14 @@ DocBook assemblies should be able to handle both the richness of the structures
that we produce today as well as the structures we will want to produce
tomorrow.
-The principle task of the structure element is to
+The principal task of the structure element is to
identify the resources that are to be combined for that structure.
The resulting structure may be delivered in any number of ways: as a single document,
help system, or web site, for example.
It is important to observe that the realized structure is often,
but not necessarily, a valid DocBook document. What is important is
-not it's validity from an authoring perspective, but rather it's
+not its validity from an authoring perspective, but rather its
validity with respect to what the downstream processor is
expecting.
@@ -240,7 +240,7 @@ expecting.
realized structure should be a valid book. If, on the other hand,
what is defined is a help system, then the realized structure may be a
collection of nested topic elements. Even though authors
-are not allowed to nest topics (per the currently proposed topic
+are not allowed to nest topics (per the DocBook 5.1 topic
element), the assembly process may be allowed to nest them.
A structure consists mostly of module elements.
@@ -556,14 +556,16 @@ database).
Setting Up the Structure
-The First few lines of the structure set up general things about
+The first few lines of the structure set up general things about
the help system:
Defining the Basics of the Help System
- XIDI Build System Help
- XIDI Help
+
+ XIDI Build System Help
+ XIDI Help
+
@@ -869,17 +871,20 @@ transformation is necessary later.)
We can address the problem of missing metadata by creating a new
resource that contains an info element containing
-the appropriate metadata and then pointing to it. But this case is so common,
-that we simply allow the info element to be placed in the
+the appropriate metadata and then pointing to it. Alternatively, you
+can supply a merge element containing metadata for the
+structure. The merge element has the same content
+model as info. Metadata elements that you include in the
+merge element are applied to the output element for the
structure.
With these amendments, here's our new structure:
-
+
Widget User Guide
-
+
@@ -940,9 +945,9 @@ subordinate modules in a new top-level module:
-
+
Widget User Guide
-
+
@@ -951,9 +956,9 @@ subordinate modules in a new top-level module: