Find application Application Tops or Base path

Step 1--Go to System Administrator Responsibility, click on Register

Step 2--Press F11

Step 3--Type in application field like below

Step 4 --Press Ctrl+F11---You can find INV_TOP for Inventory Module

Through Backed with Queries

Step1---find application

select a.application_short_name,

       l.application_name,

       l.description,

       a.basepath,

       a.product_code

  from fnd_application a, fnd_application_tl l

 where a.application_id = l.application_id

 --and l.application_name like '%Localization%'

 order by 2;

--Step2 --find path

  SELECT variable_name basepath, VALUE directory_path

    FROM apps.fnd_env_context

   WHERE variable_name LIKE '%\_TOP' ESCAPE '\'

         AND concurrent_process_id =

                (SELECT MAX (concurrent_process_id) FROM apps.fnd_env_context)

ORDER BY 1;