Changed definition of Decimal to "This subtype of the Number DataType defines a high-precision signed number. ..."

After further Workgroup review we concluded that the existing definition is correct and no change is needed.

Agreed to no-fix in telecon.

I was listen to the recordings. The issue description already states where to look for the definition of a Simple DataType. Maybe you should read it the next time. It is, as stated, in Section 5.8.2. We have a clear definition of it:
"Simple DataTypes are subtypes of the Built-in DataTypes. They are handled on the wire like
the Built-in DataType, i.e. they cannot be distinguished on the wire from their Built-in
supertypes. Since they are handled like Built-in DataTypes regarding the encoding they cannot
have encodings defined in the AddressSpace. Clients can read the DataType Attribute of a
Variable or VariableType to identify the Simple DataType of the Value Attribute. An example of
a Simple DataType is Duration. It is handled on the wire as a Double but the Client can read
the DataType Attribute and thus interpret the value as defined by Duration (see 8.13)."

Agreed to change the definition of Decimal from Simple to Built-in DataType.

Change applied

Agreed to changes edited in telecon.