diff --git a/docker/database/start-scripts/0-init.sql b/docker/database/start-scripts/0-init.sql
index 0889690e..ac84e639 100644
--- a/docker/database/start-scripts/0-init.sql
+++ b/docker/database/start-scripts/0-init.sql
@@ -112,10 +112,11 @@ create table incidences (
 --TODO: tasks, routes and works
 create table work_orders (
     id int auto_increment primary key,
-    name varchar(255),
+    contract_id int,
     created_at timestamp default current_timestamp,
+    deleted_at timestamp,
     updated_at timestamp,
-    deleted_at timestamp
+    foreign key (contract_id) references contracts(id)
 );
 
 create table parts (
@@ -136,34 +137,38 @@ create table routes (
 );
 
 create table tasks (
-    id int auto_increment primary key,
-    task_name varchar(255),
+    id int auto_increment primary key, 
     work_order_id int,
-    description varchar(255),
-    element_id int,
-    machine_id int,
-    route_id int,
-    part_id int,
-    history_id int,
-    created_at timestamp default current_timestamp,
-    updated_at timestamp,
+    notes varchar(255),
+    created_at timestamp,
     deleted_at timestamp,
-    foreign key (work_order_id) references work_orders(id),
-    foreign key (element_id) references elements(id),
-    foreign key (machine_id) references machines(id),
-    foreign key (route_id) references routes(id),
-    foreign key (part_id) references parts(id)
+    foreign key (work_order_id) references work_orders(id)
 );
 
-create table task_workers (
+create table tasks_workers (
     id int auto_increment primary key,
     task_id int,
     worker_id int,
-    created_at timestamp default current_timestamp,
     foreign key (task_id) references tasks(id),
     foreign key (worker_id) references workers(id)
 );
 
+create table tasks_zones (
+    id int auto_increment primary key,
+    task_id int,
+    zone_id int,
+    foreign key (task_id) references tasks(id),
+    foreign key (zone_id) references zones(id)
+);
+
+create table tasks_tasktypes (
+    id int auto_increment primary key,
+    task_id int,
+    tasktype_id int,
+    foreign key (task_id) references tasks(id),
+    foreign key (tasktype_id) references task_types(id)
+);
+
 --* FUTURE: sensors and sensor history
 -- create table sensors (
 --     id int auto_increment primary key,
diff --git a/docker/database/start-scripts/1-seed.sql b/docker/database/start-scripts/1-seed.sql
index 52689a81..d18efacf 100644
--- a/docker/database/start-scripts/1-seed.sql
+++ b/docker/database/start-scripts/1-seed.sql
@@ -1,125 +1,76 @@
 --* Roles, users, contracts and machines
-INSERT INTO roles (name)
-VALUES ('Administrador'),
-    ('Gerente'),
-    ('Trabajador');
-INSERT INTO workers (
-        company,
-        name,
-        dni,
-        password,
-        email,
-        role_id
-    )
-VALUES (
-        'TechCorp',
-        'Carlos García',
-        '12345678A',
-        'hashedpassword1',
-        'carlos.garcia@example.com',
-        1
-    ),
-    (
-        'InnovaTech',
-        'Ana Martínez',
-        '23456789B',
-        'hashedpassword2',
-        'ana.martinez@example.com',
-        2
-    ),
-    (
-        'DesignWorks',
-        'José Rodríguez',
-        '34567890C',
-        'hashedpassword3',
-        'jose.rodriguez@example.com',
-        3
-    );
-INSERT INTO contracts (
-        name,
-        start_date,
-        end_date,
-        invoice_proposed,
-        invoice_agreed,
-        invoice_paid
-    )
-VALUES (
-        'Ayuntamiento de Valencia',
-        '2021-01-01',
-        '2021-12-31',
-        1000.00,
-        900.00,
-        900.00
-    ),
-    (
-        'Administración General del Estado',
-        '2021-01-01',
-        '2021-12-31',
-        2000.00,
-        1800.00,
-        1800.00
-    ),
-    (
-        'Ayuntamiento de Carlet',
-        '2021-01-01',
-        '2021-12-31',
-        3000.00,
-        2700.00,
-        2700.00
-    );
-INSERT INTO machines (name, max_basket_size)
-VALUES ('Cesta elevadora', 200.00),
-    ('Plataforma elevadora', 300.00),
-    ('Tijera elevadora', 400.00);
+INSERT INTO roles (name) VALUES
+('Administrador'),
+('Gerente'),
+('Trabajador');
+INSERT INTO workers (company, name, dni, password, email, role_id, created_at, updated_at, deleted_at) VALUES
+('TechCorp', 'Carlos García', '12345678A', 'hashedpassword1', 'carlos.garcia@example.com', 1, NOW(), NOW(), NULL),
+('InnovaTech', 'Ana Martínez', '23456789B', 'hashedpassword2', 'ana.martinez@example.com', 2, NOW(), NOW(), NULL),
+('DesignWorks', 'José Rodríguez', '34567890C', 'hashedpassword3', 'jose.rodriguez@example.com', 3, NOW(), NOW(), NULL);
+INSERT INTO contracts (name, start_date, end_date, invoice_proposed, invoice_agreed, invoice_paid) VALUES
+('Ayuntamiento de Valencia', '2021-01-01', '2021-12-31', 1000.00, 900.00, 900.00),
+('Administración General del Estado', '2021-01-01', '2021-12-31', 2000.00, 1800.00, 1800.00),
+('Ayuntamiento de Carlet', '2021-01-01', '2021-12-31', 3000.00, 2700.00, 2700.00);
+INSERT INTO machines (name, max_basket_size) VALUES
+('Cesta elevadora', 200.00),
+('Plataforma elevadora', 300.00),
+('Tijera elevadora', 400.00);
 --* Tree, task and pruning types
-INSERT INTO tree_types (family, genus, species)
-VALUES ('Fagaceae', 'Quercus', 'Quercus robur'),
-    ('Pinaceae', 'Pinus', 'Pinus sylvestris'),
-    ('Sapindaceae', 'Acer', 'Acer campestre');
-INSERT INTO task_types (name)
-VALUES ('Abono arbustos'),
-    ('Podar setos'),
-    ('Abono setos');
-INSERT INTO pruning_types (name, description)
-VALUES (
-        'A',
-        'Poda de mantenimiento en árbol tipo A, caduco, de p.c. entre 41/80 cm.'
-    ),
-    (
-        'B',
-        'Poda de mantenimiento en árbol tipo B, caduco, de p.c. mayor de 81 cm.'
-    ),
-    (
-        'C',
-        'Poda de mantenimiento en árbol tipo C, perenne, de p.c. entre 41/60 cm.'
-    );
+INSERT INTO tree_types (family, genus, species) VALUES
+('Fagaceae', 'Quercus', 'Quercus robur'),
+('Pinaceae', 'Pinus', 'Pinus sylvestris'),
+('Sapindaceae', 'Acer', 'Acer campestre');
+INSERT INTO task_types (name) VALUES
+('Abono arbustos'),
+('Podar setos'),
+('Abono setos');
+INSERT INTO pruning_types (name, description) VALUES
+('A', 'Poda de mantenimiento en árbol tipo A, caduco, de p.c. entre 41/80 cm.'),
+('B', 'Poda de mantenimiento en árbol tipo B, caduco, de p.c. mayor de 81 cm.'),
+('C', 'Poda de mantenimiento en árbol tipo C, perenne, de p.c. entre 41/60 cm.');
 --* Points and zones
-INSERT INTO points (latitude, longitude)
-VALUES (40.416775, -3.703790),
-    (40.416776, -3.703795),
-    (40.416777, -3.703800);
-INSERT INTO zones (name, postal_code, point_id)
-VALUES ('Zona 1', '46001', 1),
-    ('Zona 2', '46002', 2),
-    ('Zona 3', '46003', 3);
+INSERT INTO points (latitude, longitude) VALUES
+(40.416775, -3.703790),
+(40.416776, -3.703795),
+(40.416777, -3.703800);
+INSERT INTO zones (name, postal_code, point_id) VALUES
+('Zona 1', '46001', 1),
+('Zona 2', '46002', 2),
+('Zona 3', '46003', 3);
 --* Elements and incidences
-INSERT INTO elements (name, zone_id, point_id, tree_type_id)
-VALUES ('Árbol 1', 1, 1, 1),
-    ('Árbol 2', 2, 2, 2),
-    ('Árbol 3', 3, 3, 3);
-INSERT INTO incidences (name, element_id, description)
-VALUES ('Rama caída', 1, 'Rama caída en el suelo'),
-    ('Banco roto', 2, 'Banco roto en el parque'),
-    (
-        'Fuente sin agua',
-        3,
-        'Fuente sin agua en el parque'
-    ),
-    (
-        'Árbol enfermo',
-        1,
-        'Árbol con signos de enfermedad'
-    ),
-    ('Banco pintado', 2, 'Banco pintado con grafitis'),
-    ('Fuente con fuga', 3, 'Fuente con fuga de agua');
---TODO: tasks, routes and works
\ No newline at end of file
+INSERT INTO elements (name, zone_id, point_id, tree_type_id) VALUES
+('Árbol 1', 1, 1, 1),
+('Árbol 2', 2, 2, 2),
+('Árbol 3', 3, 3, 3);
+INSERT INTO incidences (name, element_id, description) VALUES
+('Rama caída', 1, 'Rama caída en el suelo'),
+('Banco roto', 2, 'Banco roto en el parque'),
+('Fuente sin agua', 3, 'Fuente sin agua en el parque'),
+('Árbol enfermo', 1, 'Árbol con signos de enfermedad'),
+('Banco pintado', 2, 'Banco pintado con grafitis'),
+('Fuente con fuga', 3, 'Fuente con fuga de agua');
+--TODO: tasks, routes and works
+INSERT INTO work_orders (contract_id) VALUES 
+(1),
+(2),
+(3);
+
+INSERT INTO tasks (work_order_id, notes) VALUES
+(1, 'Poda de mantenimiento en árbol tipo A, caduco, de p.c. entre 41/80 cm.'),
+(2, 'Poda de mantenimiento en árbol tipo B, caduco, de p.c. entre 50/100 cm.'),
+(3, 'Poda de mantenimiento en árbol tipo C, caduco, de p.c. entre 60/120 cm.');
+
+INSERT INTO tasks_zones (task_id, zone_id) VALUES
+(1, 1),
+(2, 2),
+(3, 3);
+
+INSERT INTO tasks_tasktypes (task_id, tasktype_id) VALUES
+(1, 1),
+(2, 2),
+(3, 3);
+
+INSERT INTO tasks_workers (task_id, worker_id) VALUES
+(1, 1),
+(2, 2),
+(3, 3);
diff --git a/src/app/Controllers/CWorkOrder.php b/src/app/Controllers/CWorkOrder.php
new file mode 100644
index 00000000..6bf06e08
--- /dev/null
+++ b/src/app/Controllers/CWorkOrder.php
@@ -0,0 +1,60 @@
+<?php
+namespace App\Controllers;
+
+use App\Core\View;
+use App\Models\MWorkOrder;
+class CWorkOrder
+{
+    public function findAll()
+    {
+        $orders = MWorkOrder::findAll();
+        View::render([
+            "view" => "order/index",
+            "title" => "Order",
+            "layout" => "MainLayout",
+            "data" => ["orders" => $orders]
+        ]);
+    }
+
+    public function find()
+    {
+        $id = $_GET['id'];
+        $order = MWorkOrder::find($id);
+        View::render([
+            "view" => "order",
+            "title" => "Order",
+            "layout" => "MainLayout",
+            "data" => ["order" => $order]
+        ]);
+    }
+
+    public function indexCreate()
+    {
+        $orders = MWorkOrder::findAll();
+        View::render([
+            "view" => "order/create",
+            "title" => "Create Order",
+            "layout" => "MainLayout",
+            "data" => ["orders" => $orders]
+        ]);
+    }
+
+    public function save()
+    {
+        $order = new MWorkOrder();
+
+        $order->save();
+    }
+
+    public function delete()
+    {
+        $id = $_GET['id'];
+        $order = MWorkOrder::find($id);
+        $order->delete();
+    }
+
+    public function update()
+    {
+
+    }
+}
\ No newline at end of file
diff --git a/src/app/Core/BaseModel.php b/src/app/Core/BaseModel.php
index 4deff38c..7cfee611 100644
--- a/src/app/Core/BaseModel.php
+++ b/src/app/Core/BaseModel.php
@@ -7,7 +7,7 @@ abstract class BaseModel
     protected int $id;
     protected $created_at;
 
-    // Get the related model in a one-to-one relationship
+    // One-to-one relationship
     public function belongsTo($relatedModel, $foreignKey, $ownerKey = 'id')
     {
         $relatedTable = $relatedModel::getTableName();
@@ -19,6 +19,25 @@ public function belongsTo($relatedModel, $foreignKey, $ownerKey = 'id')
         return !empty($results) ? $relatedModel::mapDataToModel($results[0]) : null;
     }
 
+
+    // Many-to-Many relationship
+    public function belongsToMany($relatedModel, $pivotTable, $foreignKey, $relatedKey, $ownerKey = 'id', $relatedOwnerKey = 'id')
+    {
+        $relatedTable = $relatedModel::getTableName();
+        $localKeyValue = $this->{$ownerKey};
+
+        $query = "
+            SELECT $relatedTable.*
+            FROM $relatedTable
+            INNER JOIN $pivotTable ON $pivotTable.$relatedKey = $relatedTable.$relatedOwnerKey
+            WHERE $pivotTable.$foreignKey = :localKeyValue
+        ";
+
+        $results = Database::prepareAndExecute($query, ['localKeyValue' => $localKeyValue]);
+
+        return array_map(fn($row) => $relatedModel::mapDataToModel($row), $results);
+    }
+
     public function delete()
     {
         $table = static::getTableName();
diff --git a/src/app/Models/MTask.php b/src/app/Models/MTask.php
new file mode 100644
index 00000000..53e4f694
--- /dev/null
+++ b/src/app/Models/MTask.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace App\Models;
+
+use App\Core\BaseModel;
+use App\Models\MWorkOrder;
+
+class MTask extends BaseModel
+{    
+    public ?string $notes;
+    public $work_order_id;
+
+    protected static function getTableName()
+    {
+        return 'tasks';
+    }
+
+    protected static function mapDataToModel($data)
+    {
+        $task = new MTask();
+        $task->id = $data['id'];
+        $task->notes = $data['notes'];
+        $task->work_order_id = $data['work_order_id'];
+        $task->created_at = $data['created_at'];
+        return $task;
+    }
+
+    public function Order() {
+        return $this->belongsTo(MWorkOrder::class, 'work_order_id', 'id');
+    }
+
+    // Many-to-Many relationship with Post
+    public function zones()
+    {
+        return $this->belongsToMany(MZone::class, 'tasks_zones', 'task_id', 'zone_id');
+    }
+
+    public function workers()
+    {
+        return $this->belongsToMany(MWorker::class, 'tasks_workers', 'task_id', 'worker_id');
+    }
+
+    public function taskTypes()
+    {
+        return $this->belongsToMany(MTaskType::class, 'tasks_tasktypes', 'task_id', 'tasktype_id');
+    }
+}
\ No newline at end of file
diff --git a/src/app/Models/MWorkOrder.php b/src/app/Models/MWorkOrder.php
new file mode 100644
index 00000000..96978da0
--- /dev/null
+++ b/src/app/Models/MWorkOrder.php
@@ -0,0 +1,34 @@
+<?php
+namespace App\Models;
+
+use App\Core\BaseModel;
+
+class MWorkOrder extends BaseModel
+{
+    public int $contract_id;
+
+    protected static function getTableName()
+    {
+        return 'work_orders';
+    }
+
+    protected static function mapDataToModel($data)
+    {
+        $order = new MWorkOrder();
+        $order->id = $data['id'];
+        $order->contract_id = $data['contract_id'];
+        $order->created_at = $data['created_at'];
+
+        return $order;
+    }
+
+    public function contract()
+    {
+        return $this->belongsTo(MContract::class, 'contract_id', 'id');
+    }
+
+    public function tasks()
+    {
+        return $this->hasMany(MTask::class, 'work_order_id', 'id');
+    }
+}
\ No newline at end of file
diff --git a/src/app/Views/order/create.php b/src/app/Views/order/create.php
new file mode 100644
index 00000000..970605b5
--- /dev/null
+++ b/src/app/Views/order/create.php
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html lang="ca">
+    <head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Crear Ordres</title>
+    </head>
+    <body class="bg-gray-100 p-8">
+        <h1 class="text-2xl font-bold mb-4">Crear Ordre de Treball</h1>
+
+        <form action="/orders/store" method="POST">
+            <label for="order_name">Nom de l'Ordre:</label>
+            <input type="text" id="order_name" name="order_name" required>
+
+            <label for="contract">Contracte:</label>
+            <select id="contract" name="contract_id" required>
+                <option value="">Selecciona un contracte</option>
+                <?php foreach ($contracts as $contract): ?>
+                    <option value="<?php echo htmlspecialchars($contract['id']); ?>">
+                        <?php echo htmlspecialchars($contract['name']); ?>
+                    </option>
+                <?php endforeach; ?>
+            </select>
+
+            <label for="order_date">Data:</label>
+            <input type="date" id="order_date" name="order_date" required>
+
+            <button type="submit">Crear Ordre</button>
+        </form>
+    </body>
+</html>
\ No newline at end of file
diff --git a/src/app/Views/order/index.php b/src/app/Views/order/index.php
new file mode 100644
index 00000000..ab28424c
--- /dev/null
+++ b/src/app/Views/order/index.php
@@ -0,0 +1,73 @@
+<!DOCTYPE html>
+<html lang="ca">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Llista d'Ordres</title>
+</head>
+
+<body class="bg-gray-100 p-8">
+    <h1 class="text-2xl font-bold mb-4">Ordre de Treball</h1>
+    <button class="bg-blue-500 hover:bg-blue-600 text-white font-semibold py-2 px-4 rounded mb-4"
+        onclick="window.location.href='/order/create'">
+        Crear Ordre
+    </button>
+
+    <table class="min-w-full bg-white border border-gray-300 rounded-lg overflow-hidden shadow-lg">
+        <thead class="bg-gray-200">
+            <tr>
+                <th class="py-2 px-4 border-b">Contracte</th>
+                <th class="py-2 px-4 border-b">Data</th>
+                <th class="py-2 px-4 border-b">Zones</th>
+                <th class="py-2 px-4 border-b">Tasques</th>
+                <th class="py-2 px-4 border-b">Operaris</th>
+                <th class="py-2 px-4 border-b">Notes</th>
+                <th class="py-2 px-4 border-b">Estat</th>
+                <th class="py-2 px-4 border-b">Opcions</th>
+            </tr>
+        </thead>
+        <tbody>
+            <?php foreach ($orders as $order): ?>
+                <?php foreach ($order->tasks() as $task): ?>
+                    <tr class="border-b hover:bg-gray-100">
+                        <td class="py-2 px-4"><?php echo $order->contract()->name; ?></td>
+                        <td class="py-2 px-4"><?php echo $order->getCreatedAt(); ?></td>
+                        <td class="py-2 px-4">
+                            <?php foreach ($task->zones() as $zone): ?>
+                                <?php echo $zone->name; ?>,
+                            <?php endforeach; ?>
+                        </td>
+                        <td class="py-2 px-4">
+                            <?php foreach ($task->taskTypes() as $task_type): ?>
+                                <?php echo $task_type->name; ?>,
+                            <?php endforeach; ?>
+                        </td>
+                        <td class="py-2 px-4">
+                            <?php foreach ($task->workers() as $worker): ?>
+                                <?php echo $worker->name; ?>,
+                            <?php endforeach; ?>
+                        </td>
+                        <td class="py-2 px-4"><?php echo $task->notes; ?></td>
+                        <td class="py-2 px-4"></td>
+                        <td class="py-2 px-4">
+                            <button class="bg-green-500 hover:bg-green-600 text-white font-semibold py-1 px-2 rounded mr-2"
+                                onclick="window.location.href='/order/<?php echo $order->getId(); ?>'">
+                                Editar
+                            </button>
+
+                            <form action="/order/<?php echo $order->getId(); ?>" method="DELETE">
+                                <button class="bg-red-500 hover:bg-red-600 text-white font-semibold py-1 px-2 rounded"
+                                    type="submit">
+                                    Eliminar
+                                </button>
+                            </form>
+                        </td>
+                    </tr>
+                <?php endforeach; ?>
+            <?php endforeach; ?>
+        </tbody>
+    </table>
+</body>
+
+</html>
\ No newline at end of file