diff --git a/app/Models/Note.php b/app/Models/Note.php
index 702666a..6ab4143 100644
--- a/app/Models/Note.php
+++ b/app/Models/Note.php
@@ -4,6 +4,7 @@ namespace App\Models;
 
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
 class Note extends Model
 {
@@ -18,4 +19,9 @@ class Note extends Model
         'department_id',
         'created_by_id',
     ];
+
+    public function task(): BelongsTo
+    {
+        return $this->belongsTo(Task::class);
+    }
 }
diff --git a/app/Models/Project.php b/app/Models/Project.php
index be26f93..7b8b62a 100644
--- a/app/Models/Project.php
+++ b/app/Models/Project.php
@@ -5,6 +5,7 @@ namespace App\Models;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 use Illuminate\Database\Eloquent\Relations\HasMany;
 
 class Project extends Model
@@ -24,7 +25,18 @@ class Project extends Model
         return $this->belongsTo(Department::class);
     }
 
-    public function users()
+    public function users(): BelongsToMany
     {
+        return $this->belongsToMany(User::class);
+    }
+
+    public function task_statuses(): hasMany
+    {
+        return $this->hasMany(TaskStatus::class);
+    }
+
+    public function tasks(): hasMany
+    {
+        return $this->hasMany(Task::class);
     }
 }
diff --git a/app/Models/Task.php b/app/Models/Task.php
index 732224d..8b7acb2 100644
--- a/app/Models/Task.php
+++ b/app/Models/Task.php
@@ -27,11 +27,6 @@ class Task extends Model
         return $this->belongsTo(User::class, 'created_by_id');
     }
 
-    public function users(): BelongsToMany
-    {
-        return $this->belongsToMany(User::class);
-    }
-
     public function status(): BelongsTo
     {
         return $this->belongsTo(TaskStatus::class);
@@ -42,11 +37,6 @@ class Task extends Model
         return $this->belongsToMany(Label::class);
     }
 
-    public function department(): BelongsTo
-    {
-        return $this->belongsTo(Department::class);
-    }
-
     public function notes(): HasMany
     {
         return $this->hasMany('App\Models\Note', 'task_id');
@@ -56,4 +46,14 @@ class Task extends Model
     {
         return $this->hasMany('App\Models\Task', 'parent_id');
     }
+
+    public function project(): BelongsTo
+    {
+        return $this->belongsTo(Project::class);
+    }
+
+    public function files(): HasMany
+    {
+        return $this->hasMany('App\Models\File', 'task_id');
+    }
 }
diff --git a/app/Models/TaskStatus.php b/app/Models/TaskStatus.php
index 76e8fb2..595ea92 100644
--- a/app/Models/TaskStatus.php
+++ b/app/Models/TaskStatus.php
@@ -4,6 +4,7 @@ namespace App\Models;
 
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
 class TaskStatus extends Model
 {
@@ -15,4 +16,14 @@ class TaskStatus extends Model
         'project_id',
         'created_by_id',
     ];
+
+    public function project(): BelongsTo
+    {
+        return $this->belongsTo(Project::class);
+    }
+
+    public function task(): BelongsTo
+    {
+        return $this->belongsTo(Task::class);
+    }
 }
diff --git a/app/Models/User.php b/app/Models/User.php
index 90155c7..35135f0 100644
--- a/app/Models/User.php
+++ b/app/Models/User.php
@@ -4,6 +4,8 @@ namespace App\Models;
 
 // use Illuminate\Contracts\Auth\MustVerifyEmail;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 use Illuminate\Foundation\Auth\User as Authenticatable;
 use Illuminate\Notifications\Notifiable;
 
@@ -45,4 +47,14 @@ class User extends Authenticatable
             'password' => 'hashed',
         ];
     }
+
+    public function department(): BelongsTo
+    {
+        return $this->belongsTo(Department::class);
+    }
+
+    public function projects(): BelongsToMany
+    {
+        return $this->belongsToMany(Project::class);
+    }
 }