diff --git a/.gitignore b/.gitignore
index 9402404..601f317 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 # common
 .idea
-/nbproject
\ No newline at end of file
+/nbproject
+/vendor/
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..a857431
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,20 @@
+{
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+    "description": "Sample code for several design patterns in PHP",
+    "authors": [
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+            "email": "liebler.dominik@googlemail.com"
+        }
+    ],
+    "minimum-stability": "stable",
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+    "autoload": {
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+            "DesignPatterns\\": ""
+        }
+    }
+}
diff --git a/composer.lock b/composer.lock
new file mode 100644
index 0000000..3d44d0c
--- /dev/null
+++ b/composer.lock
@@ -0,0 +1,509 @@
+{
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+            "require-dev": {
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+            },
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+            },
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+            ],
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+        },
+        {
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+            },
+            "notification-url": "https://packagist.org/downloads/",
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+            ],
+            "license": [
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+                    "email": "sb@sebastian-bergmann.de",
+                    "role": "lead"
+                }
+            ],
+            "description": "Utility class for timing",
+            "homepage": "https://github.com/sebastianbergmann/php-timer/",
+            "keywords": [
+                "timer"
+            ],
+            "time": "2013-08-02 07:42:54"
+        },
+        {
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+            "version": "1.2.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sebastianbergmann/php-token-stream.git",
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+            },
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+                "reference": "5220af2a7929aa35cf663d97c89ad3d50cf5fa3e",
+                "shasum": ""
+            },
+            "require": {
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+                "php": ">=5.3.3"
+            },
+            "type": "library",
+            "extra": {
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+                }
+            },
+            "autoload": {
+                "classmap": [
+                    "PHP/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "include-path": [
+                ""
+            ],
+            "license": [
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+            ],
+            "authors": [
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+                    "name": "Sebastian Bergmann",
+                    "email": "sb@sebastian-bergmann.de",
+                    "role": "lead"
+                }
+            ],
+            "description": "Wrapper around PHP's tokenizer extension.",
+            "homepage": "https://github.com/sebastianbergmann/php-token-stream/",
+            "keywords": [
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+            ],
+            "time": "2013-09-13 04:58:23"
+        },
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+            "require-dev": {
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+            },
+            "suggest": {
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+                "ext-simplexml": "*",
+                "ext-tokenizer": "*",
+                "phpunit/php-invoker": ">=1.1.0,<1.2.0"
+            },
+            "bin": [
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+            ],
+            "type": "library",
+            "extra": {
+                "branch-alias": {
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+                }
+            },
+            "autoload": {
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+                    "PHPUnit/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "include-path": [
+                "",
+                "../../symfony/yaml/"
+            ],
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Sebastian Bergmann",
+                    "email": "sebastian@phpunit.de",
+                    "role": "lead"
+                }
+            ],
+            "description": "The PHP Unit Testing framework.",
+            "homepage": "http://www.phpunit.de/",
+            "keywords": [
+                "phpunit",
+                "testing",
+                "xunit"
+            ],
+            "time": "2013-10-17 07:27:40"
+        },
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+            "version": "1.2.3",
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+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3",
+                "phpunit/php-text-template": ">=1.1.1@stable"
+            },
+            "suggest": {
+                "ext-soap": "*"
+            },
+            "type": "library",
+            "autoload": {
+                "classmap": [
+                    "PHPUnit/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "include-path": [
+                ""
+            ],
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Sebastian Bergmann",
+                    "email": "sb@sebastian-bergmann.de",
+                    "role": "lead"
+                }
+            ],
+            "description": "Mock Object library for PHPUnit",
+            "homepage": "https://github.com/sebastianbergmann/phpunit-mock-objects/",
+            "keywords": [
+                "mock",
+                "xunit"
+            ],
+            "time": "2013-01-13 10:24:48"
+        },
+        {
+            "name": "squizlabs/php_codesniffer",
+            "version": "1.5.1",
+            "source": {
+                "type": "git",
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+            },
+            "require": {
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+                "php": ">=5.1.2"
+            },
+            "suggest": {
+                "phpunit/php-timer": "dev-master"
+            },
+            "bin": [
+                "scripts/phpcs"
+            ],
+            "type": "library",
+            "autoload": {
+                "classmap": [
+                    "CodeSniffer.php",
+                    "CodeSniffer/CLI.php",
+                    "CodeSniffer/Exception.php",
+                    "CodeSniffer/File.php",
+                    "CodeSniffer/Report.php",
+                    "CodeSniffer/Reporting.php",
+                    "CodeSniffer/Sniff.php",
+                    "CodeSniffer/Tokens.php",
+                    "CodeSniffer/Reports/",
+                    "CodeSniffer/CommentParser/",
+                    "CodeSniffer/Tokenizers/",
+                    "CodeSniffer/DocGenerators/",
+                    "CodeSniffer/Standards/AbstractPatternSniff.php",
+                    "CodeSniffer/Standards/AbstractScopeSniff.php",
+                    "CodeSniffer/Standards/AbstractVariableSniff.php",
+                    "CodeSniffer/Standards/IncorrectPatternException.php",
+                    "CodeSniffer/Standards/Generic/Sniffs/",
+                    "CodeSniffer/Standards/MySource/Sniffs/",
+                    "CodeSniffer/Standards/PEAR/Sniffs/",
+                    "CodeSniffer/Standards/PSR1/Sniffs/",
+                    "CodeSniffer/Standards/PSR2/Sniffs/",
+                    "CodeSniffer/Standards/Squiz/Sniffs/",
+                    "CodeSniffer/Standards/Zend/Sniffs/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Greg Sherwood",
+                    "role": "lead"
+                }
+            ],
+            "description": "PHP_CodeSniffer tokenises PHP, JavaScript and CSS files and detects violations of a defined set of coding standards.",
+            "homepage": "http://www.squizlabs.com/php-codesniffer",
+            "keywords": [
+                "phpcs",
+                "standards"
+            ],
+            "time": "2013-12-12 03:08:49"
+        },
+        {
+            "name": "symfony/yaml",
+            "version": "v2.4.1",
+            "target-dir": "Symfony/Component/Yaml",
+            "source": {
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+                "url": "https://github.com/symfony/Yaml.git",
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+            "require": {
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+            },
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+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.4-dev"
+                }
+            },
+            "autoload": {
+                "psr-0": {
+                    "Symfony\\Component\\Yaml\\": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "http://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony Yaml Component",
+            "homepage": "http://symfony.com",
+            "time": "2013-12-28 08:12:03"
+        }
+    ],
+    "aliases": [
+
+    ],
+    "minimum-stability": "stable",
+    "stability-flags": [
+
+    ],
+    "platform": [
+
+    ],
+    "platform-dev": [
+
+    ]
+}