diff --git a/composer.json b/composer.json
index b415c1c..5f263ef 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,7 @@
 {
     "name": "icefox/dto",
     "type": "library",
+    "version": "0.0.1",
     "require": {
         "laravel/framework": "^11.0",
         "psr/log": "^3.0",
@@ -18,15 +19,12 @@
     "license": "GPL-2.0-only",
     "autoload": {
         "psr-4": {
-            "Icefox\\DTO\\": "src/"
+            "Icefox\\Data\\": "src/"
         }
     },
     "autoload-dev": {
         "psr-4": {
-            "Tests\\": "tests/",
-            "Workbench\\App\\": "workbench/app/",
-            "Workbench\\Database\\Factories\\": "workbench/database/factories/",
-            "Workbench\\Database\\Seeders\\": "workbench/database/seeders/"
+            "Tests\\": "tests/"
         }
     },
     "authors": [
diff --git a/src/Attributes/CastWith.php b/src/Attributes/CastWith.php
index 6d544c5..25c32cf 100644
--- a/src/Attributes/CastWith.php
+++ b/src/Attributes/CastWith.php
@@ -2,8 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Icefox\DTO\Attributes;
-
+namespace Icefox\Data\Attributes;
 use Attribute;
 
 #[Attribute(Attribute::TARGET_PARAMETER)]
diff --git a/src/Attributes/Flat.php b/src/Attributes/Flat.php
index 27d73ad..2664003 100644
--- a/src/Attributes/Flat.php
+++ b/src/Attributes/Flat.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Icefox\DTO\Attributes;
+namespace Icefox\Data\Attributes;
 
 use Attribute;
 
diff --git a/src/Attributes/FromInput.php b/src/Attributes/FromInput.php
index 0a536bc..d43b697 100644
--- a/src/Attributes/FromInput.php
+++ b/src/Attributes/FromInput.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Icefox\DTO\Attributes;
+namespace Icefox\Data\Attributes;
 
 use Attribute;
 
diff --git a/src/Attributes/FromRouteParameter.php b/src/Attributes/FromRouteParameter.php
index 4eb11d1..d104e1c 100644
--- a/src/Attributes/FromRouteParameter.php
+++ b/src/Attributes/FromRouteParameter.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Icefox\DTO\Attributes;
+namespace Icefox\Data\Attributes;
 
 use Attribute;
 
diff --git a/src/Attributes/Overwrite.php b/src/Attributes/Overwrite.php
index 63a6453..a797cc6 100644
--- a/src/Attributes/Overwrite.php
+++ b/src/Attributes/Overwrite.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Icefox\DTO\Attributes;
+namespace Icefox\Data\Attributes;
 
 use Attribute;
 
diff --git a/src/CustomHandlers.php b/src/CustomHandlers.php
index f76b988..cf0eb15 100644
--- a/src/CustomHandlers.php
+++ b/src/CustomHandlers.php
@@ -1,8 +1,8 @@
 <?php
 
-namespace Icefox\DTO;
+namespace Icefox\Data;
 
-use Icefox\DTO\Factories\RuleFactory;
+use Icefox\Data\Factories\RuleFactory;
 use phpDocumentor\Reflection\PseudoTypes\Generic;
 
 class CustomHandlers
diff --git a/src/DataObject.php b/src/DataObject.php
index ebfb754..69b15e5 100644
--- a/src/DataObject.php
+++ b/src/DataObject.php
@@ -2,9 +2,9 @@
 
 declare(strict_types=1);
 
-namespace Icefox\DTO;
+namespace Icefox\Data;
 
-use Icefox\DTO\Factories\DataObjectFactory;
+use Icefox\Data\Factories\DataObjectFactory;
 use Illuminate\Http\Request;
 
 trait DataObject
diff --git a/src/Factories/DataObjectFactory.php b/src/Factories/DataObjectFactory.php
index c38ad95..96b3c9c 100644
--- a/src/Factories/DataObjectFactory.php
+++ b/src/Factories/DataObjectFactory.php
@@ -1,12 +1,12 @@
 <?php
 
-namespace Icefox\DTO\Factories;
+namespace Icefox\Data\Factories;
 
-use Icefox\DTO\Attributes\FromInput;
-use Icefox\DTO\Attributes\FromRouteParameter;
-use Icefox\DTO\Factories\RuleFactory;
-use Icefox\DTO\Factories\ValueFactory;
-use Icefox\DTO\ReflectionHelper;
+use Icefox\Data\Attributes\FromInput;
+use Icefox\Data\Attributes\FromRouteParameter;
+use Icefox\Data\Factories\RuleFactory;
+use Icefox\Data\Factories\ValueFactory;
+use Icefox\Data\ReflectionHelper;
 use Illuminate\Http\Request;
 use Illuminate\Routing\Route;
 use Illuminate\Support\Facades\App;
@@ -15,7 +15,6 @@ use Illuminate\Validation\ValidationException;
 use Illuminate\Validation\Validator;
 use Psr\Log\LoggerInterface;
 use ReflectionNamedType;
-use phpDocumentor\Reflection\Types\AbstractList;
 
 class DataObjectFactory
 {
@@ -37,7 +36,13 @@ class DataObjectFactory
     public static function fromArray(string $class, array $rawInput, array $routeParameters): ?object
     {
         $logger = Log::channel('dto');
-        $input = self::mapInput($class, $rawInput, $routeParameters, $logger);
+
+        $defaults = method_exists($class, 'defaults')
+            ? App::call("$class::defaults")
+            : [];
+
+        $mergedInput = array_replace_recursive($defaults, $rawInput);
+        $input = self::mapInput($class, $mergedInput, $routeParameters, $logger);
 
         $rules = (new RuleFactory($logger))->make($class);
 
@@ -104,13 +109,19 @@ class DataObjectFactory
             }
 
             if ($valueType = ReflectionHelper::getListParameterValueType($parameter->tag)) {
-                $input[$parameterName] = $isListType
-                    ? array_map(
-                        fn($element) => self::mapInput($valueType, $element, $routeParameters, $logger),
-                        $rawInput[$parameterName],
-                    )
-                    : self::mapInput($valueType, $rawInput[$parameterName], $routeParameters, $logger);
-                continue;
+                if (class_exists($valueType)) {
+                    $input[$parameterName] = $isListType
+                        ? array_map(
+                            fn($element) => self::mapInput($valueType, $element, $routeParameters, $logger),
+                            $rawInput[$parameterName],
+                        )
+                        : self::mapInput($valueType, $rawInput[$parameterName], $routeParameters, $logger);
+                    continue;
+                }
+                if (array_key_exists($parameterName, $rawInput)) {
+                    $input[$parameterName] = $rawInput[$parameterName];
+                    continue;
+                }
             }
 
             if ($reflectionType instanceof ReflectionNamedType) {
diff --git a/src/Factories/RuleFactory.php b/src/Factories/RuleFactory.php
index 4dc4acf..df1bdd7 100644
--- a/src/Factories/RuleFactory.php
+++ b/src/Factories/RuleFactory.php
@@ -2,13 +2,13 @@
 
 declare(strict_types=1);
 
-namespace Icefox\DTO\Factories;
+namespace Icefox\Data\Factories;
 
-use Icefox\DTO\Attributes\Flat;
-use Icefox\DTO\Attributes\Overwrite;
-use Icefox\DTO\ParameterMeta;
-use Icefox\DTO\ReflectionHelper;
-use Icefox\DTO\Factories\RuleFactory;
+use Icefox\Data\Attributes\Flat;
+use Icefox\Data\Attributes\Overwrite;
+use Icefox\Data\ParameterMeta;
+use Icefox\Data\ReflectionHelper;
+use Icefox\Data\Factories\RuleFactory;
 use Illuminate\Support\Facades\App;
 use Illuminate\Support\Facades\Log;
 use Illuminate\Validation\Rule;
diff --git a/src/Factories/ValueFactory.php b/src/Factories/ValueFactory.php
index 5509c51..835d7ea 100644
--- a/src/Factories/ValueFactory.php
+++ b/src/Factories/ValueFactory.php
@@ -2,11 +2,11 @@
 
 declare(strict_types=1);
 
-namespace Icefox\DTO\Factories;
+namespace Icefox\Data\Factories;
 
-use Icefox\DTO\Attributes\CastWith;
-use Icefox\DTO\Attributes\Flat;
-use Icefox\DTO\ReflectionHelper;
+use Icefox\Data\Attributes\CastWith;
+use Icefox\Data\Attributes\Flat;
+use Icefox\Data\ReflectionHelper;
 use Illuminate\Support\Facades\App;
 use ReflectionNamedType;
 use phpDocumentor\Reflection\PseudoTypes\Generic;
diff --git a/src/IData.php b/src/IData.php
new file mode 100644
index 0000000..0f2e749
--- /dev/null
+++ b/src/IData.php
@@ -0,0 +1,5 @@
+<?php
+
+namespace Icefox\Data;
+
+interface IData {}
diff --git a/src/IDataObject.php b/src/IDataObject.php
deleted file mode 100644
index 5797c95..0000000
--- a/src/IDataObject.php
+++ /dev/null
@@ -1,6 +0,0 @@
-<?php
-
-namespace Icefox\DTO;
-
-interface IDataObject {}
-
diff --git a/src/ParameterMeta.php b/src/ParameterMeta.php
index 9d814d1..c63d95f 100644
--- a/src/ParameterMeta.php
+++ b/src/ParameterMeta.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Icefox\DTO;
+namespace Icefox\Data;
 
 use ReflectionParameter;
 use phpDocumentor\Reflection\DocBlock\Tags\Param;
diff --git a/src/Providers/DataObjectServiceProvider.php b/src/Providers/DataObjectServiceProvider.php
index a90acc7..2236800 100644
--- a/src/Providers/DataObjectServiceProvider.php
+++ b/src/Providers/DataObjectServiceProvider.php
@@ -1,23 +1,26 @@
 <?php
 
-namespace Icefox\DTO\Providers;
+namespace Icefox\Data\Providers;
 
-use Icefox\DTO\Factories\DataObjectFactory;
-use Icefox\DTO\IDataObject;
+use Icefox\Data\Factories\DataObjectFactory;
+use Icefox\Data\IData;
 use Illuminate\Support\ServiceProvider;
 
 class DataObjectServiceProvider extends ServiceProvider
 {
     public function register(): void
     {
+        $this->publishes([
+            __DIR__ . '../../workbench/config/dto.php' => config_path('dto.php'),
+        ]);
+
         $this->app->beforeResolving(function ($abstract, $parameters, $app) {
             if ($app->has($abstract)) {
                 return;
             }
-            if (is_subclass_of($abstract, IDataObject::class)) {
+            if (is_subclass_of($abstract, IData::class)) {
                 $app->bind($abstract, fn($container) => DataObjectFactory::fromRequest($abstract, $container['request']));
             }
         });
     }
 }
-
diff --git a/src/ReflectionHelper.php b/src/ReflectionHelper.php
index 47ebd39..fa64c03 100644
--- a/src/ReflectionHelper.php
+++ b/src/ReflectionHelper.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Icefox\DTO;
+namespace Icefox\Data;
 
 use ReflectionNamedType;
 use ReflectionParameter;
diff --git a/tests/DataObject/DataObjectTest.php b/tests/DataObject/DataObjectTest.php
index 30b3055..c21ec8e 100644
--- a/tests/DataObject/DataObjectTest.php
+++ b/tests/DataObject/DataObjectTest.php
@@ -2,9 +2,9 @@
 
 namespace Tests\DataObject;
 
-use Icefox\DTO\Attributes\FromInput;
-use Icefox\DTO\Attributes\FromRouteParameter;
-use Icefox\DTO\Factories\DataObjectFactory;
+use Icefox\Data\Attributes\FromInput;
+use Icefox\Data\Attributes\FromRouteParameter;
+use Icefox\Data\Factories\DataObjectFactory;
 use Illuminate\Support\Collection;
 use Psr\Log\NullLogger;
 
@@ -193,3 +193,208 @@ test('route parameter with nested object', function () {
     expect($result['userId'])->toBe(123)
         ->and($result['address']['street'])->toBe('Main St');
 });
+
+readonly class SimpleWithDefaults
+{
+    public function __construct(
+        public string $name,
+        public int $age,
+        public string $city = 'Unknown',
+    ) {}
+
+    /**
+     * @return array<string,mixed>
+     */
+    public static function defaults(): array
+    {
+        return [
+            'city' => 'New York',
+            'age' => 25,
+        ];
+    }
+}
+
+test('defaults with fromArray - basic usage', function () {
+    $object = DataObjectFactory::fromArray(
+        SimpleWithDefaults::class,
+        ['name' => 'John'],
+        [],
+    );
+
+    expect($object->name)->toBe('John')
+        ->and($object->age)->toBe(25)
+        ->and($object->city)->toBe('New York');
+});
+
+readonly class NestedWithDefaults
+{
+    public function __construct(
+        public string $title,
+        public SimpleWithDefaults $user,
+    ) {}
+
+    /**
+     * @return array<string,array<string,mixed>>
+     */
+    public static function defaults(): array
+    {
+        return [
+            'user' => [
+                'name' => 'Default User',
+                'age' => 30,
+            ],
+        ];
+    }
+}
+
+test('defaults with nested objects', function () {
+    $object = DataObjectFactory::fromArray(
+        NestedWithDefaults::class,
+        ['title' => 'Admin Dashboard'],
+        [],
+    );
+
+    expect($object->title)->toBe('Admin Dashboard')
+        ->and($object->user->name)->toBe('Default User')
+        ->and($object->user->age)->toBe(30)
+        ->and($object->user->city)->toBe('Unknown');
+});
+
+test('defaults merged with input - input overrides defaults', function () {
+    $object = DataObjectFactory::fromArray(
+        SimpleWithDefaults::class,
+        ['name' => 'Alice', 'age' => 40, 'city' => 'Los Angeles'],
+        [],
+    );
+
+    expect($object->name)->toBe('Alice')
+        ->and($object->age)->toBe(40)
+        ->and($object->city)->toBe('Los Angeles');
+});
+
+
+test('defaults with simple nested structures', function () {
+    $object = DataObjectFactory::fromArray(
+        NestedWithDefaults::class,
+        ['title' => 'Simple Project'],
+        [],
+    );
+
+    expect($object->title)->toBe('Simple Project')
+        ->and($object->user->name)->toBe('Default User')
+        ->and($object->user->age)->toBe(30);
+});
+
+readonly class ArrayWithDefaults
+{
+    /**
+     * @param array<string,mixed> $settings
+     */
+    public function __construct(
+        public string $projectName,
+        public array $settings,
+    ) {}
+    /**
+     * @return array<string,array<string,mixed>>
+     */
+    public static function defaults(): array
+    {
+        return [
+            'settings' => [
+                'theme' => 'dark',
+                'notifications' => true,
+                'language' => 'en',
+            ],
+        ];
+    }
+}
+
+test('defaults with array structures', function () {
+    $object = DataObjectFactory::fromArray(
+        ArrayWithDefaults::class,
+        ['projectName' => 'New Project'],
+        [],
+    );
+
+    expect($object->projectName)->toBe('New Project')
+        ->and($object->settings)->toBe([
+            'theme' => 'dark',
+            'notifications' => true,
+            'language' => 'en',
+        ]);
+});
+
+test('defaults partially overridden by input', function () {
+    $object = DataObjectFactory::fromArray(
+        ArrayWithDefaults::class,
+        [
+            'projectName' => 'Custom Project',
+            'settings' => [
+                'theme' => 'light',
+                'language' => 'fr',
+            ],
+        ],
+        [],
+    );
+
+    expect($object->projectName)->toBe('Custom Project')
+        ->and($object->settings)->toBe([
+            'theme' => 'light',
+            'notifications' => true, // From defaults
+            'language' => 'fr',
+        ]);
+});
+
+readonly class WithInputMappingAndDefaults
+{
+    public function __construct(
+        #[FromInput('full_name')]
+        public string $name,
+        #[FromInput('user_age')]
+        public int $age,
+        public string $role = 'user',
+    ) {}
+    /**
+     * @return array<string,mixed>
+     */
+    public static function defaults(): array
+    {
+        return [
+            'name' => 'Default Name',
+            'role' => 'admin',
+            'age' => 18,
+        ];
+    }
+}
+
+test('defaults work with FromInput attribute mapping', function () {
+    $object = DataObjectFactory::fromArray(
+        WithInputMappingAndDefaults::class,
+        ['full_name' => 'John Doe'],
+        [],
+    );
+
+    expect($object->name)->toBe('John Doe') // From input mapping
+        ->and($object->age)->toBe(18) // From defaults
+        ->and($object->role)->toBe('admin'); // From defaults
+});
+
+test('array_merge_recursive behavior with nested arrays', function () {
+    $object = DataObjectFactory::fromArray(
+        ArrayWithDefaults::class,
+        [
+            'projectName' => 'Test Project',
+            'settings' => [
+                'new_setting' => 'custom_value',
+            ],
+        ],
+        [],
+    );
+
+    expect($object->settings)->toBe([
+        'theme' => 'dark', // From defaults
+        'notifications' => true, // From defaults
+        'language' => 'en', // From defaults
+        'new_setting' => 'custom_value', // From input
+    ]);
+});
diff --git a/tests/Http/RequestTest.php b/tests/Http/RequestTest.php
index c92e06d..d0713e3 100644
--- a/tests/Http/RequestTest.php
+++ b/tests/Http/RequestTest.php
@@ -2,13 +2,13 @@
 
 namespace Tests\Http;
 
-use Icefox\DTO\IDataObject;
+use Icefox\Data\IData;
 use Illuminate\Http\Exceptions\HttpResponseException;
 use Illuminate\Support\Facades\Route;
 use Illuminate\Support\Facades\Validator as ValidatorFacade;
 use Illuminate\Validation\Validator;
 
-readonly class Basic implements IDataObject
+readonly class Basic implements IData
 {
     public string $reply;
     public function __construct(string $message)
@@ -35,7 +35,7 @@ test('fails on validation error', function () {
         ]);
 });
 
-readonly class WithCustomValidator implements IDataObject
+readonly class WithCustomValidator implements IData
 {
     public string $reply;
     public function __construct(string $message)
@@ -66,7 +66,7 @@ test('replies with custom validator', function () {
         ]);
 });
 
-readonly class WithCustomFailure implements IDataObject
+readonly class WithCustomFailure implements IData
 {
     public function __construct(public bool $flag) {}
 
@@ -87,7 +87,7 @@ test('uses custom response', function () {
         ->assertJson(['result' => 'invalid, but that is ok']);
 });
 
-readonly class WithDefaultObjectOnFailure implements IDataObject
+readonly class WithDefaultObjectOnFailure implements IData
 {
     public function __construct(public bool $flag) {}
 
diff --git a/tests/Rules/RulesTest.php b/tests/Rules/RulesTest.php
index 16ec1a7..f902d73 100644
--- a/tests/Rules/RulesTest.php
+++ b/tests/Rules/RulesTest.php
@@ -4,9 +4,9 @@ declare(strict_types=1);
 
 namespace Tests\Rules;
 
-use Icefox\DTO\Attributes\Flat;
-use Icefox\DTO\Attributes\Overwrite;
-use Icefox\DTO\Factories\RuleFactory;
+use Icefox\Data\Attributes\Flat;
+use Icefox\Data\Attributes\Overwrite;
+use Icefox\Data\Factories\RuleFactory;
 use Illuminate\Support\Collection;
 
 readonly class BasicPrimitives
diff --git a/tests/Values/ValuesTest.php b/tests/Values/ValuesTest.php
index 17cd822..e592d17 100644
--- a/tests/Values/ValuesTest.php
+++ b/tests/Values/ValuesTest.php
@@ -5,8 +5,8 @@ declare(strict_types=1);
 namespace Tests\Values;
 
 use Carbon\CarbonPeriod;
-use Icefox\DTO\Attributes\CastWith;
-use Icefox\DTO\Factories\ValueFactory;
+use Icefox\Data\Attributes\CastWith;
+use Icefox\Data\Factories\ValueFactory;
 use Illuminate\Support\Carbon;
 use Illuminate\Support\Collection;
 
diff --git a/workbench/config/dto.php b/workbench/config/dto.php
index a06c16b..ecf8413 100644
--- a/workbench/config/dto.php
+++ b/workbench/config/dto.php
@@ -1,12 +1,12 @@
 <?php
 
-use Icefox\DTO\CustomHandlers;
+use Icefox\Data\CustomHandlers;
 use Illuminate\Support\Collection;
 use Psr\Log\LogLevel;
 
 return [
     'rules' => [
-        Collection::class => CustomHandlers::CollectionRules(...),
+        Collection::class => CustomHandlers::class . "::CollectionRules",
     ],
     'logging' => [
         'channel' => 'dto',