diff --git a/Admin/Install/Navigation.install.json b/Admin/Install/Navigation.install.json
index 23be0b0..94c3c69 100755
--- a/Admin/Install/Navigation.install.json
+++ b/Admin/Install/Navigation.install.json
@@ -19,7 +19,7 @@
                 "type": 2,
                 "subtype": 1,
                 "name": "OrderSuggestions",
-                "uri": "{/prefix}purchase/analysis?{?}",
+                "uri": "{/prefix}purchase/order/suggestion?{?}",
                 "target": "self",
                 "icon": null,
                 "order": 15,
diff --git a/Admin/Routes/Web/Backend.php b/Admin/Routes/Web/Backend.php
index 1010c8f..8d2b3c0 100755
--- a/Admin/Routes/Web/Backend.php
+++ b/Admin/Routes/Web/Backend.php
@@ -39,17 +39,6 @@ return [
             ],
         ],
     ],
-    '^.*/purchase/article/recommend.*$' => [
-        [
-            'dest'       => '\Modules\Purchase\Controller\BackendController:viewPurchaseOrderRecommendation',
-            'verb'       => RouteVerb::GET,
-            'permission' => [
-                'module' => BackendController::MODULE_NAME,
-                'type'   => PermissionType::READ,
-                'state'  => PermissionState::ARTICLE,
-            ],
-        ],
-    ],
     '^.*/purchase/article/create.*$' => [
         [
             'dest'       => '\Modules\Purchase\Controller\BackendController:viewPurchaseArticleCreate',
@@ -72,4 +61,15 @@ return [
             ],
         ],
     ],
+    '^.*/purchase/order/suggestion.*$' => [
+        [
+            'dest'       => '\Modules\Purchase\Controller\BackendController:viewPurchaseOrderSuggestion',
+            'verb'       => RouteVerb::GET,
+            'permission' => [
+                'module' => BackendController::MODULE_NAME,
+                'type'   => PermissionType::READ,
+                'state'  => PermissionState::ARTICLE,
+            ],
+        ],
+    ],
 ];
diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index 2fe7427..54db7e4 100755
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -146,7 +146,7 @@ final class BackendController extends Controller
      * @since 1.0.0
      * @codeCoverageIgnore
      */
-    public function viewPurchaseOrderRecommendation(RequestAbstract $request, ResponseAbstract $response, $data = null) : RenderableInterface
+    public function viewPurchaseOrderSuggestion(RequestAbstract $request, ResponseAbstract $response, $data = null) : RenderableInterface
     {
         $view = new View($this->app->l11nManager, $request, $response);
         $view->setTemplate('/Modules/Purchase/Theme/Backend/article-order-recommendation');
diff --git a/OrderSuggestion/DefaultOrderSuggestion.php b/OrderSuggestion/DefaultOrderSuggestion.php
new file mode 100644
index 0000000..c3b9655
--- /dev/null
+++ b/OrderSuggestion/DefaultOrderSuggestion.php
@@ -0,0 +1,120 @@
+<?php
+/**
+ * Orange Management
+ *
+ * PHP Version 8.0
+ *
+ * @package   OrderSuggestion
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 1.0
+ * @version   1.0.0
+ * @link      https://orange-management.org
+ */
+declare(strict_types=1);
+
+namespace Modules\Purchase\OrderSuggestion;
+
+/**
+ * OMS order suggestion class
+ *
+ * @package Modules\Purchase\Models\OrderSuggestion
+ * @license OMS License 1.0
+ * @link    https://orange-management.org
+ * @since   1.0.0
+ */
+final class DefaultOrderSuggestion implements OrderSuggestionInterface
+{
+	/**
+     * Which data should be used to create the order suggestion?
+     *
+     * @var int
+     * @since 1.0.0
+     */
+	public int $suggestionType = OrderSuggestionType::HISTORIC;
+
+	/**
+     * Comparison duration type.
+     *
+     * @var int
+     * @since 1.0.0
+     */
+	public int $historicComparisonDurationType = OrderSuggestionComparisonDurationType::ANNUAL;
+
+	/**
+     * How many years should used for the analysis.
+     *
+     * @var int
+     * @since 1.0.0
+     */
+	public int $historicComparisonDuration = 1;
+
+	/**
+     * Which averaging method should be used?
+     *
+     * @var int
+     * @since 1.0.0
+     */
+	public int $historicAveragingMethod = OrderSuggestionAveragingMethod::MEAN;
+
+	/**
+     * What should the focus of the order suggestion be?
+     *
+     * @var int
+     * @since 1.0.0
+     */
+	public int $optimizationType = OrderSuggestionOptimizationType::PRICE;
+
+	/**
+     * How greedy should the algorithm be?
+     *
+     * The number represents how many items in % can be bought in additon to the optimal stock quantity.
+     *
+     * Higher means more room for adjustments.
+     *
+     * @var int
+     * @since 1.0.0
+     */
+	public int $optimizationGreediness = 10;
+
+	/**
+     * For how many days would you like to have stock?
+     *
+     * Or in other words, higher means you need to order less often per year.
+     *
+     * Only relevant if OptimizationType::AVAILABILITY
+     *
+     * @var int
+     * @since 1.0.0
+     */
+	public int $optimizationDays = 0;
+
+	/**
+     * Maximum available budget.
+     *
+     * 0 = infinite budget
+     *
+     * If a budget is defined and the optimal order is > than the available budget,
+     * the algorithm will try to order as many different items as possible.
+     *
+     * If not all items can be ordered will try to order the items with the highest profit.
+     *
+     * @var int
+     * @since 1.0.0
+     */
+	public int $maxAvailableBudget = 0;
+
+	/**
+	 * item data for algorithm:
+	 * 		number
+	 * 		name
+	 * 		purchase price per volume
+	 * 		minimum quantity per volume
+	 * 		delivery time / lead time
+	 * 		in-house processing time (e.g. qs time, labelling, packaging)
+	 * 		ordered (order confirmations)
+	 * 		stock available
+	 * 		offers
+	 * 		avg. profit
+	 * 		demand in period N
+	 */
+}
\ No newline at end of file
diff --git a/OrderSuggestion/OrderSuggestionAveragingMethod.php b/OrderSuggestion/OrderSuggestionAveragingMethod.php
new file mode 100644
index 0000000..9913bc6
--- /dev/null
+++ b/OrderSuggestion/OrderSuggestionAveragingMethod.php
@@ -0,0 +1,34 @@
+<?php
+/**
+ * Orange Management
+ *
+ * PHP Version 8.0
+ *
+ * @package   Modules\Purchase\Models\OrderSuggestion
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 1.0
+ * @version   1.0.0
+ * @link      https://orange-management.org
+ */
+declare(strict_types=1);
+
+namespace Modules\Purchase\OrderSuggestion;
+
+use phpOMS\Stdlib\Base\Enum;
+
+/**
+ * Suggestion type enum.
+ *
+ * @package Modules\Purchase\Models\OrderSuggestion
+ * @license OMS License 1.0
+ * @link    https://orange-management.org
+ * @since   1.0.0
+ */
+abstract class OrderSuggestionAveragingMethod extends Enum
+{
+    public const MEAN = 1;
+
+    public const MEDIAN = 2;
+
+    public const MEAN_WEIGHTED = 3;
+}
diff --git a/OrderSuggestion/OrderSuggestionComparisonDurationType.php b/OrderSuggestion/OrderSuggestionComparisonDurationType.php
new file mode 100644
index 0000000..e3b97c9
--- /dev/null
+++ b/OrderSuggestion/OrderSuggestionComparisonDurationType.php
@@ -0,0 +1,34 @@
+<?php
+/**
+ * Orange Management
+ *
+ * PHP Version 8.0
+ *
+ * @package   Modules\Purchase\Models\OrderSuggestion
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 1.0
+ * @version   1.0.0
+ * @link      https://orange-management.org
+ */
+declare(strict_types=1);
+
+namespace Modules\Purchase\OrderSuggestion;
+
+use phpOMS\Stdlib\Base\Enum;
+
+/**
+ * Suggestion type enum.
+ *
+ * @package Modules\Purchase\Models\OrderSuggestion
+ * @license OMS License 1.0
+ * @link    https://orange-management.org
+ * @since   1.0.0
+ */
+abstract class OrderSuggestionComparisonDurationType extends Enum
+{
+    public const ANNUALY = 1;
+
+    public const MONTHLY = 2; // The basis is every month, the different months are considered the same
+
+    public const MONTHLY_ANNUAL = 3; // The basis is the same month, e.g. helpful for seasonal data
+}
diff --git a/OrderSuggestion/OrderSuggestionOptimizationType.php b/OrderSuggestion/OrderSuggestionOptimizationType.php
new file mode 100644
index 0000000..1e34bcc
--- /dev/null
+++ b/OrderSuggestion/OrderSuggestionOptimizationType.php
@@ -0,0 +1,34 @@
+<?php
+/**
+ * Orange Management
+ *
+ * PHP Version 8.0
+ *
+ * @package   Modules\Purchase\Models\OrderSuggestion
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 1.0
+ * @version   1.0.0
+ * @link      https://orange-management.org
+ */
+declare(strict_types=1);
+
+namespace Modules\Purchase\OrderSuggestion;
+
+use phpOMS\Stdlib\Base\Enum;
+
+/**
+ * Suggestion type enum.
+ *
+ * @package Modules\Purchase\Models\OrderSuggestion
+ * @license OMS License 1.0
+ * @link    https://orange-management.org
+ * @since   1.0.0
+ */
+abstract class OrderSuggestionOptimizationType extends Enum
+{
+    public const PRICE = 1; // Suggestion focuses on creating better prices if volume discounts exist.
+
+    public const JUST_IN_TIME = 2; // Suggestion focuses on calculating minimum stock quantities.
+
+    public const AVAILABILITY = 3; // Suggestion focuses on an availability for X days, days need to be specified in the algorithm.
+}
diff --git a/OrderSuggestion/OrderSuggestionType.php b/OrderSuggestion/OrderSuggestionType.php
new file mode 100644
index 0000000..cb8ced6
--- /dev/null
+++ b/OrderSuggestion/OrderSuggestionType.php
@@ -0,0 +1,34 @@
+<?php
+/**
+ * Orange Management
+ *
+ * PHP Version 8.0
+ *
+ * @package   Modules\Purchase\Models\OrderSuggestion
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 1.0
+ * @version   1.0.0
+ * @link      https://orange-management.org
+ */
+declare(strict_types=1);
+
+namespace Modules\Purchase\OrderSuggestion;
+
+use phpOMS\Stdlib\Base\Enum;
+
+/**
+ * Suggestion type enum.
+ *
+ * @package Modules\Purchase\Models\OrderSuggestion
+ * @license OMS License 1.0
+ * @link    https://orange-management.org
+ * @since   1.0.0
+ */
+abstract class OrderSuggestionType extends Enum
+{
+    public const AVAILABLE = 1; // Suggestion based on: available stock + current orders
+
+    public const HISTORIC = 2; // Suggestion based on: available stock + current orders + historic demand
+
+    public const TREND = 3; // Suggestion based on: available stock + current orders + trend
+}
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