[FIX] dictionary inheritance

['FAST Protocol' forum at fixprotocol . org]

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I am new to FAST and want to define the template inheritance.  I have following 
questions
1. Do we need to define the "global" dictionary template ?
   my understanding: I dont think so !

2. do we need to define the reference template by itself or the FAST code 
should build by itself.
   my understanding: Fast code should by itself

3. If I want to use only copy code and increment code operators.  Is there any 
difference between FAST 1.0 and 1.1 ?
   my understanding: for these two operator there is no change in the updated 
spec

4. Can someone clarify my understanding of following template definition ? 


(template name=”T1” )
(typeRef name=”t4”)
(string name=”Field1” presence=”mandatory”)
                (copy dictionary=”global”)
(/string)
(string name=”Field2” presence=”mandatory”)
                (copy dictionary=”global”)
(/string)
(string name=”Field3” presence=”mandatory”)
                (copy dictionary=”type”)
(/string)
(string name=”Field4” presence=”mandatory”)
                (copy dictionary=”template”)
(/string)
(/template)

(template name=”T2” )
(typeRef name=”t4”)
(string name=”Field2” presence=”mandatory”)
                (copy dictionary=”global”)
(/string)
(string name=”Field3” presence=”mandatory”)
                (copy dictionary=”global”)
(/string)
(string name=”Field4” presence=”mandatory”)
                (copy dictionary=”type”)
(/string)
(string name=”Field5” presence=”mandatory”)
                (copy dictionary=”template”)
(/string)
(/template)

(template name=”T3”)
(typeRef name=”t4”)
(string name=”Field3” presence=”mandatory”)
                (copy dictionary=”global”)
(/string)
(string name=”Field4” presence=”mandatory”)
                (copy dictionary=”global”)
(/string)
(string name=”Field5” presence=”mandatory”)
                (copy dictionary=”type”)
(/string)
(string name=”Field6” presence=”mandatory”)
                (copy dictionary=”template”)
(/string)
(/template)

(template name=”T3”)
(typeRef name=”t4”)
(string name=”Field4” presence=”mandatory”)
                (copy dictionary=”global”)
(/string)
(string name=”Field5” presence=”mandatory”)
                (copy dictionary=”global”)
(/string)
(string name=”Field6” presence=”mandatory”)
                (copy dictionary=”type”)
(/string)
(string name=”Field7” presence=”mandatory”)
                (copy dictionary=”template”)
(/string)
(/template)

Following is my understanding is:
Template1:
T1.field1 global
T1.field2 global
T1.field3 t4
T1.field4 T1

Template2:
T2.field2 global
T2.field3 global
T2.field4 t4
T2.field5 T2

Template3:
T3.field3 global
T3.field4 global
T3.field5 t4
T3.field6 T3

Template4:
T4.field4 global
T4.field5 global
T4.field6 t4
T4.field7 T4


5. In the above example if I use templateRef instead of typeRef what is the 
difference ?
   my understanding : nothing !


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