Update import-data.md

Author: EXPEkesheth

articles/healthcare-apis/fhir/import-data.md

@@ -11,7 +11,7 @@ ms.author: kesheth
 
 # Import FHIR data
 
-You can use the `import` operation to ingest FHIR® data into the FHIR server with high throughput.
+You can use the `import` operation to ingest FHIR® data into the FHIR server with high throughput. The import operation enables importing FHIR data in the NDJSON format to the FHIR server. 
 
 ## Import operation modes
 
@@ -55,6 +55,8 @@ To achieve the best performance with the `import` operation, consider the follow
 
 - **Limit the number of parallel import jobs**. You can run multiple `import` jobs at the same time, but might affect the overall throughput of the `import` operation. 
 
+To achieve high throughput,`import` operation runs on distributed computing infrastructure. It splits input files in data units and processes these units in parallel and independent of each other.
+
 ## Perform the import operation
 
 ### Prerequisites