diff --git a/device-app/app/Models/Device.php b/device-app/app/Models/Device.php
index bb38700..cce77db 100644
--- a/device-app/app/Models/Device.php
+++ b/device-app/app/Models/Device.php
@@ -2,8 +2,11 @@
 
 namespace App\Models;
 
-use Illuminate\Database\Eloquent\Factories\HasFactory;
+use App\Models\OwnerTransaction;
+use App\Models\LocationTransaction;
+use App\Models\PurchasingInformation;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class Device extends Model
 {
@@ -24,4 +27,16 @@ class Device extends Model
 
     //Timestamps are disabled.
     public $timestamps = false;
+
+    public function owners() {
+        return $this->hasMany(OwnerTransaction::class, 'device_id');
+    }
+
+    public function locations() {
+        return $this->hasMany(LocationTransaction::class, 'device_id');
+    }
+
+    public function purchasing() {
+        return $this->belongsTo(PurchasingInformation::class, 'device_id');
+    }
 }
\ No newline at end of file
diff --git a/device-app/app/Models/LocationTransaction.php b/device-app/app/Models/LocationTransaction.php
new file mode 100644
index 0000000..2ca3e90
--- /dev/null
+++ b/device-app/app/Models/LocationTransaction.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Models;
+
+use App\Models\Device;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+
+class LocationTransaction extends Model
+{
+    use HasFactory;
+
+    /**
+     * The primary key associated with the devices table.
+     * @var string
+     */
+    protected $primaryKey = 'location_transaction_id';
+
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array<int, string>
+     */
+    protected $fillable = ['location_transaction_id', 'room_code', 'timestamp_located_since', 'device_id'];
+
+    public function device() {
+        return $this->belongsTo(Device::class, 'device_id');
+    }
+}
\ No newline at end of file
diff --git a/device-app/app/Models/OwnerTransaction.php b/device-app/app/Models/OwnerTransaction.php
new file mode 100644
index 0000000..faa5aeb
--- /dev/null
+++ b/device-app/app/Models/OwnerTransaction.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Models;
+
+use App\Models\Device;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+
+class OwnerTransaction extends Model
+{
+    use HasFactory;
+
+    /**
+     * The primary key associated with the devices table.
+     * @var string
+     */
+    protected $primaryKey = 'owner_transaction_id';
+
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array<int, string>
+     */
+    protected $fillable = ['owner_transaction_id', 'rz_username', 'timestamp_owner_since', 'device_id'];
+
+    public function device() {
+        return $this->belongsTo(Device::class, 'device_id');
+    }
+
+}
diff --git a/device-app/app/Models/PurchasingInformation.php b/device-app/app/Models/PurchasingInformation.php
new file mode 100644
index 0000000..ba71300
--- /dev/null
+++ b/device-app/app/Models/PurchasingInformation.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class PurchasingInformation extends Model
+{
+    use HasFactory;
+
+    /**
+     * The primary key associated with the devices table.
+     * @var string
+     */
+    protected $primaryKey = 'purchasing_information_id';
+
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array<int, string>
+     */
+    protected $fillable = ['purchasing_information_id', 'price', 'timestamp_warranty_end', 'timestamp_purchase', 'cost_centre', 'seller', 'device_id'];
+
+    public function device() {
+        return $this->belongsTo(Device::class, 'device_id');
+    }
+}
diff --git a/device-app/database/migrations/2023_03_20_114828_create_location_transactions_table.php b/device-app/database/migrations/2023_03_20_114828_create_location_transactions_table.php
index 6428fc7..a91c6b9 100644
--- a/device-app/database/migrations/2023_03_20_114828_create_location_transactions_table.php
+++ b/device-app/database/migrations/2023_03_20_114828_create_location_transactions_table.php
@@ -16,6 +16,7 @@ public function up(): void
             $table->string('room_code');
             $table->string('timestamp_located_since');
             $table->string('device_id');
+            $table->foreign('device_id')->references('device_id')->on('devices');
         });
     }
 
diff --git a/device-app/database/migrations/2023_03_20_114834_create_owner_transactions_table.php b/device-app/database/migrations/2023_03_20_114834_create_owner_transactions_table.php
index fa46372..7d3c049 100644
--- a/device-app/database/migrations/2023_03_20_114834_create_owner_transactions_table.php
+++ b/device-app/database/migrations/2023_03_20_114834_create_owner_transactions_table.php
@@ -16,6 +16,7 @@ public function up(): void
             $table->string('rz_username');
             $table->string('timestamp_owner_since');
             $table->string('device_id');
+            $table->foreign('device_id')->references('device_id')->on('devices');
         });
     }
 
diff --git a/device-app/database/migrations/2023_03_20_114945_create_purchasing_information_table.php b/device-app/database/migrations/2023_03_20_114945_create_purchasing_information_table.php
index b158973..0539e73 100644
--- a/device-app/database/migrations/2023_03_20_114945_create_purchasing_information_table.php
+++ b/device-app/database/migrations/2023_03_20_114945_create_purchasing_information_table.php
@@ -18,7 +18,8 @@ public function up(): void
             $table->string('timestamp_purchase');
             $table->string('cost_centre');
             $table->string('seller')->nullable();
-            $table->string('device_id')->unique();
+            $table->string('device_id');
+            $table->foreign('device_id')->references('device_id')->on('devices');
         });
     }
 
diff --git a/device-app/resources/views/components/device-card.blade.php b/device-app/resources/views/components/device-card.blade.php
index dd691d8..eda7980 100644
--- a/device-app/resources/views/components/device-card.blade.php
+++ b/device-app/resources/views/components/device-card.blade.php
@@ -1,4 +1,14 @@
 @props(['device'])
 <div>
     <a href="/devices/{{ $device['device_id'] }}">{{ $device->title }}</a>
+    <ul>
+        <li>{{ $device['device_id'] }}</li>
+        <li>{{ $device['title'] }}</li>
+        <li>{{ $device['device_type'] }}</li>
+        <li>{{ $device['description'] }}</li>
+        <li>{{ $device['accessories'] }}</li>
+        <li>{{ $device['rz_username_buyer'] }}</li>
+        <li>{{ $device['serial_number'] }}</li>
+        <li>{{ $device['image_url'] }}</li>
+    </ul>
 </div>
\ No newline at end of file
diff --git a/device-app/resources/views/components/device-location-card.blade.php b/device-app/resources/views/components/device-location-card.blade.php
new file mode 100644
index 0000000..a32b7f4
--- /dev/null
+++ b/device-app/resources/views/components/device-location-card.blade.php
@@ -0,0 +1,5 @@
+@props(['locationTransaction'])
+<div>
+    <p>Owner: {{ $locationTransaction->room_code }}</p>
+    <p>since: {{ $locationTransaction->timestamp_located_since }}</p>
+</div>
diff --git a/device-app/resources/views/components/device-owner-card.blade.php b/device-app/resources/views/components/device-owner-card.blade.php
new file mode 100644
index 0000000..5f3e968
--- /dev/null
+++ b/device-app/resources/views/components/device-owner-card.blade.php
@@ -0,0 +1,5 @@
+@props(['ownerTransaction'])
+<div>
+    <p>Owner: {{ $ownerTransaction->rz_username }}</p>
+    <p>since: {{ $ownerTransaction->timestamp_owner_since }}</p>
+</div>
\ No newline at end of file
diff --git a/device-app/resources/views/components/device-purchasing-card.blade.php b/device-app/resources/views/components/device-purchasing-card.blade.php
new file mode 100644
index 0000000..5e1679f
--- /dev/null
+++ b/device-app/resources/views/components/device-purchasing-card.blade.php
@@ -0,0 +1,8 @@
+@props(['purchasingInformation'])
+<div>
+    <p>price: {{ $purchasingInformation->price }}</p>
+    <p>timestamp_warranty_end: {{ $purchasingInformation->timestamp_warranty_end }}</p>
+    <p>timestamp_purchase: {{ $purchasingInformation->timestamp_purchase }}</p>
+    <p>cost_centre: {{ $purchasingInformation->cost_centre }}</p>
+    <p>seller: {{ $purchasingInformation->seller }}</p>
+</div>
\ No newline at end of file
diff --git a/device-app/resources/views/devices/show.blade.php b/device-app/resources/views/devices/show.blade.php
index e3958e2..5e1fea5 100644
--- a/device-app/resources/views/devices/show.blade.php
+++ b/device-app/resources/views/devices/show.blade.php
@@ -2,16 +2,7 @@
 
 @section('content')
     <h1>Device Detail</h1>
-    <ul>
-        <li>{{ $device['device_id'] }}</li>
-        <li>{{ $device['title'] }}</li>
-        <li>{{ $device['device_type'] }}</li>
-        <li>{{ $device['description'] }}</li>
-        <li>{{ $device['accessories'] }}</li>
-        <li>{{ $device['rz_username_buyer'] }}</li>
-        <li>{{ $device['serial_number'] }}</li>
-        <li>{{ $device['image_url'] }}</li>
-    </ul>
+    
     <button><a href="{{$device->device_id}}/edit">Edit</a></button>
 
     <form method="POST" action="{{$device->device_id}}">