DLT - Mapping questions

[spiderman90]

Hello ,

i am new with using DLT tool , 

 the output of this tool provided data reference and the mapping file .

But mapping file did not assign any domains , and also did not generate  any new  blue sheets.

This file includes only mapping sheet ,source subtypes ,source schema,target subtypes and target schema .

why did not assign any new blue sheets ? 
mapping : it provide me number of asset group but values for  asset type was empty .

1.why asset type is empty although I have four asset types for this feature class ?

2.why did not assign any domain ?

i have 3 domains for specific fields but it did not assign any .so how to assign domains ?

3.why did not generate any of blue sheets ?

4. SourceDefinitionQuery ? 
it was empty column at my data reference .
i am not sure ,how to use it .is it necessary to use ?

[TedHoward2]

I'm unsure what you mean by assign domains, but these tools do not create domains. They only help map data from a source domain to a target domain.

Blue sheets are only created if fields in your Source class/table have domains.

SourceDefinitionQuery is for applying definition queries to filter what data is loaded to target and should be written with SQL (the same as applying definition query to a layer in a map).