DITA referencing and conref

Hi Amitoj, Thank you for your help. I have prepared a graphics, helping me explain, see attached. Basically, what I am trying to build is a structured user manual interface or call it a project, where I can store small pieces of topics inside bigger xml files as warehouse topics. These xml files can include from one to multiple topics with individual IDs that I can use later on to refer to. In my project, we have a user manual for each of our products as well as for each language (each user manual is translated into some different languages). And since there are many identical parts between the different user manuals as well as between the different languages, we would like to benefit from the re-use ability of structured authoring. In my short search in the web, I realized that DITA offers different ways of doing that. One way would be conref. Maybe I understood it wrong, but what I realized is that with conrefs, one can create different smaller topics in an xml files and then independently reuse those topics in other xml files or in a ditamap. However, when I created a ditamap, I was not able to pull the individual concepts that I have marked in my DITA concept files. In the ditamap, I do not see conref as an element like topicref. Using topicref, I insert the whole xmlfile into the ditamap though. Best, Hadi