diff --git a/D01 Integration of INSEL Models and SimStadt/02 Concept.adoc b/D01 Integration of INSEL Models and SimStadt/02 Concept.adoc
index 12d2baed2932ba5cdf12ec8659081a7175db879c..f152a46c31084884b0effbb26f636d58541729a3 100644
--- a/D01 Integration of INSEL Models and SimStadt/02 Concept.adoc	
+++ b/D01 Integration of INSEL Models and SimStadt/02 Concept.adoc	
@@ -15,27 +15,52 @@ This statement in an INSEL template
 
 [source,java]
 ----
-{{electricalEfficiency}} % Electrical efficiency [-]
+{{building.yearOfConstruction}} 
 ----
 
-will be replaced by the value of the attribute _electricalEfficiency_ in the INSEL model by the INSEL templater Workflow step per building. 
+will be replaced by the value of the attribute _yearOfConstruction_ of the class _Building_ in the INSEL model by the INSEL templater Workflow step per building. 
 
 If an attribute is not set in an instance of an object in SimStadt, a default value can be defined in the template:
 
 [source,java]
 ----
-{{getOrDefault electricalEfficiency 0.20}} % Electrical efficiency [-]
+{{getOrDefault building.yearOfConstruction 9999}}
 ----
 
-# implementation
+In this example, yearOf Construction is set to 9999 if not available for a specific building.
 
-INSEL_Templater_WFS.png
+The following example shows an INSEL template that write the yearOfConstruction per building. The INSEL templater read the template and generate an INSEL model per building by replacing the variables {{building.yearOfConstruction}} and {{building.gmlId}} with the attributes of each instance of the class _Building_. The variable {{step.location}} is always replaced by the same attribute of the workflow step.
 
+[source]
+----
+b 1 DO
+p 1
+           1
+          {{getOrDefault building.yearOfConstruction 9999}}
+           1
+b 2 WRITE  1.1
+p 2
+           1
+           0
+    '{{step.location}}/OneToN-{{building.gmlId}}.txt'
+    '*'
+----
 
-An example of an INSEL template for a heat pump that is applied to the simulation of every building in SimStadt can be found here:  
-
-https://gitlab.com/volkercoors/neqmodplus-steinbeis/uploads/c977bb7ac8882d1b2105813d35ea0b63/2020-04-17_HP_central_simple_constants_incl_defaults.txt[]
-
-The example is provided by Verena Weiler.
+The resulting INSEL model generated for a specific _Building_ be the workflow step may look like this:
 
+[source]
+----
+b 1 DO
+p 1
+    1
+    1980
+    1
+b 2 WRITE  1.1
+p 2
+    1
+    0
+    './OneToN-gmlid01.txt'
+    '*'
+----
 
+Running this INSEL model writes a file that contains the year of construction of the building. If the workflow is applied to a CityGML model with 150 _Buildings_, 150 INSEL models will be stored and executed, and the same amount of resulting files will be written.