diff --git a/openbis/source/java/ch/systemsx/cisd/openbis/generic/server/business/bo/IExternalDataTable.java b/openbis/source/java/ch/systemsx/cisd/openbis/generic/server/business/bo/IExternalDataTable.java
index a8838d8cebff3076b1991cc39acde6ff9976e178..f0d647b02a921caf749190ab708265b250f3d73d 100644
--- a/openbis/source/java/ch/systemsx/cisd/openbis/generic/server/business/bo/IExternalDataTable.java
+++ b/openbis/source/java/ch/systemsx/cisd/openbis/generic/server/business/bo/IExternalDataTable.java
@@ -109,6 +109,8 @@ public interface IExternalDataTable
     /**
      * Schedules processing of specified datasets with specified parameter bindings using the
      * specified datastore service.
+     * 
+     * @param parameterBindings Should be a map where additional entries can be added.
      */
     void processDatasets(String datastoreServiceKey, String datastoreCode,
             List<String> datasetCodes, Map<String, String> parameterBindings);
diff --git a/openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/IDataStoreService.java b/openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/IDataStoreService.java
index fe5aa6cf4bf021b374eaeb2d74b54f74ac116180..227c642a583794d465342ce06048f2c313667cf6 100644
--- a/openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/IDataStoreService.java
+++ b/openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/IDataStoreService.java
@@ -83,6 +83,8 @@ public interface IDataStoreService
      * Schedules the processing task with the specified id for provided datasets and specified
      * parameter bindings.
      * 
+     * @param parameterBindings Contains at least the parameter {@link Constants#USER_PARAMETER} with
+     *            the ID of the user who initiated processing.
      * @param userEmailOrNull Email of user who initiated processing and will get a message after
      *            the processing is finished. It may be null if the user doesn't have email and no
      *            message will be send in such case.