diff --git a/openapi.yaml b/openapi.yaml
index a6e965e..259524b 100644
--- a/openapi.yaml
+++ b/openapi.yaml
@@ -100,9 +100,9 @@ paths:
       summary: Returns baseData entries
       description:
         STATEMENTBEGIN
-          SELECT Artikelcode,
-                 Art,
-                 bezeichnung 
+          SELECT Artikelcode AS articleNumber,
+                 Art AS category,
+                 bezeichnung AS description
             FROM stammdaten 
             WHERE Artikelcode = @articleNumber
         STATEMENTEND
@@ -114,15 +114,15 @@ paths:
             type: string
       responses:
         200:
-          description: Here are your productionOrder items
+          description: Here are your baseData items
           content:
             application/json:
               schema:
                 type: array
                 items:
-                  $ref: "#/components/schemas/productionOrder"
+                  $ref: "#/components/schemas/baseData"
         404:
-          description: No such productionOrder entries available
+          description: No such baseData entries available
 
 components:
   schemas:
@@ -163,3 +163,13 @@ components:
           type: string
         referenceDocument:
           type: string
+    baseData:
+      description: Selecting columns of the stammdaten table from pdb_el
+      type: object
+      properties:
+        articleNumber:
+          type: string
+        category:
+          type: string
+        description:
+          type: string