diff --git a/advotracker/src/bin/csv-test/main.rs b/advotracker/src/bin/csv-test/main.rs
index fba979b..c436f68 100644
--- a/advotracker/src/bin/csv-test/main.rs
+++ b/advotracker/src/bin/csv-test/main.rs
@@ -12,9 +12,9 @@ use serde::Deserialize;
 use std::env;
 use std::{error::Error, process};
 use std::collections::HashMap;
-use tracing::{debug, trace, Level};
+use tracing::{debug, trace, span, Level};
 
-use advotracker::data::structures::{PolicyCode, PolicyList, PolicyDataList, PolicyData};
+use advotracker::data::{PolicyCode, PolicyList, PolicyDataList, PolicyData};
 
 // include modules
 mod parse_args;
diff --git a/advotracker/src/main.rs b/advotracker/src/main.rs
index 5fa5d16..136137c 100644
--- a/advotracker/src/main.rs
+++ b/advotracker/src/main.rs
@@ -5,14 +5,14 @@
  * SPDX-License-Identifier: (0BSD or MIT)
  */
 
-//use chrono::{Local, DateTime};
+use chrono::{Local, DateTime};
 use locales::t;
 //use serde::{Deserialize, Serialize};
 use serde::Deserialize;
-use std::{env, process};
-//use std::{error::Error, process};
+use std::env;
+use std::{error::Error, process};
 use std::collections::HashMap;
-use tracing::{debug, trace, Level};
+use tracing::{debug, trace, span, Level};
 
 use orbtk::prelude::*;
 use orbtk::theme::DEFAULT_THEME_CSS;
@@ -21,6 +21,30 @@ use orbtk::theme::DEFAULT_THEME_CSS;
 // The Main view
 use advotracker::widgets::main_view;
 
+//use advotracker::services;
+//use advotracker::sercices::policy_check::{import};
+
+// helper modules
+//pub mod base_state;
+//pub mod keys;
+
+// the frontend
+//pub mod main_view;
+
+// validation check of a policy data element given by its poliy code
+//pub mod policycheck_view;
+//ub mod policycheck_state;
+//pub mod policycheck_menu;
+
+// // manage list of policy data structures
+// pub mod policylist_view;
+// pub mod policylist_state;
+
+// // manage policy data elements
+// pub mod policydata_view;
+// pub mod policydata_state;
+// include modules
+
 mod parse_args;
 
 /// respect environment variables set in .env files
@@ -50,9 +74,10 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     use tracing_subscriber::fmt;
     use viperus::Viperus;
 
-    //use advotracker::callbacks::policy_check::is_valid;
+    use advotracker::services::policy_check::*;
     use advotracker::services::imports::allianzdirectcall::*;
-    use advotracker::data::structures::{PolicyCode, PolicyDataList, PolicyList};
+    //use advotracker::data;
+    use advotracker::data::structures::{PolicyCode, PolicyDataList, PolicyData, PolicyList};
 
     //static DEFAULT_FILTER: &str = concat!(module_path!(), "=", "trace");