diff --git a/volunter/manage.py b/volunter/manage.py
index e42cffe..46ec271 100644
--- a/volunter/manage.py
+++ b/volunter/manage.py
@@ -3,7 +3,7 @@
 import sys
 
 if __name__ == "__main__":
-    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "volunter.settings")
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "volunteer.settings")
 
     from django.core.management import execute_from_command_line
 
diff --git a/volunter/volunter/__init__.py b/volunter/volunteer/__init__.py
similarity index 100%
rename from volunter/volunter/__init__.py
rename to volunter/volunteer/__init__.py
diff --git a/volunter/volunter/app/__init__.py b/volunter/volunteer/app/__init__.py
similarity index 100%
rename from volunter/volunter/app/__init__.py
rename to volunter/volunteer/app/__init__.py
diff --git a/volunter/volunter/app/core/__init__.py b/volunter/volunteer/app/core/__init__.py
similarity index 100%
rename from volunter/volunter/app/core/__init__.py
rename to volunter/volunteer/app/core/__init__.py
diff --git a/volunter/volunteer/app/core/admin.py b/volunter/volunteer/app/core/admin.py
new file mode 100644
index 0000000..d90bb45
--- /dev/null
+++ b/volunter/volunteer/app/core/admin.py
@@ -0,0 +1,11 @@
+from django.contrib import admin
+
+from models import Profile
+from models import Organization
+from models import Opportunity
+from models import Collaboration
+
+admin.site.register(Profile)
+admin.site.register(Organization)
+admin.site.register(Opportunity)
+admin.site.register(Collaboration)
diff --git a/volunter/volunteer/app/core/models.py b/volunter/volunteer/app/core/models.py
new file mode 100644
index 0000000..148cec3
--- /dev/null
+++ b/volunter/volunteer/app/core/models.py
@@ -0,0 +1,48 @@
+from django.db import models
+
+
+class DefaultFields(models.Model):
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+    active = models.BooleanField(default=True)
+
+    class Meta:
+        abstract = True
+
+
+class Profile(DefaultFields):
+    user = models.OneToOneField('auth.User', related_name='profile')
+    birth_date = models.DateField()
+
+
+class Organization(DefaultFields):
+    # required
+    owner = models.ForeignKey('auth.User', related_name='organizations')
+    name = models.CharField(max_length=100)
+    description = models.TextField()
+    # optional
+    site = models.URLField(null=True, blank=True)
+    cnpj = models.CharField(max_length=14, null=True, blank=True)
+
+
+class Opportunity(DefaultFields):
+    # relation
+    organization = models.ForeignKey('Organization', related_name='opportunities')
+    volunteers = models.ManyToManyField('auth.User', related_name='opportunities', through='Collaboration')
+    # required
+    title = models.CharField(max_length=200)
+    description = models.TextField()
+    location = models.CharField(max_length=200)
+    # optional
+    min_volunteer = models.IntegerField(null=True, blank=True)
+    max_volunteer = models.IntegerField(null=True, blank=True)
+    site = models.URLField()
+
+
+class Collaboration(DefaultFields):
+    opportunity = models.ForeignKey('Opportunity', related_name='collaborations')
+    user = models.ForeignKey('auth.User', related_name='collaborations')
+    confirmed = models.BooleanField()
+
+    class Meta:
+        unique_together = ('opportunity', 'user')
diff --git a/volunter/volunter/app/core/tests.py b/volunter/volunteer/app/core/tests.py
similarity index 100%
rename from volunter/volunter/app/core/tests.py
rename to volunter/volunteer/app/core/tests.py
diff --git a/volunter/volunter/app/core/views.py b/volunter/volunteer/app/core/views.py
similarity index 100%
rename from volunter/volunter/app/core/views.py
rename to volunter/volunteer/app/core/views.py
diff --git a/volunter/volunter/requirements/base.txt b/volunter/volunteer/requirements/base.txt
similarity index 100%
rename from volunter/volunter/requirements/base.txt
rename to volunter/volunteer/requirements/base.txt
diff --git a/volunter/volunter/settings.py b/volunter/volunteer/settings.py
similarity index 84%
rename from volunter/volunter/settings.py
rename to volunter/volunteer/settings.py
index b196f8e..32eb14d 100644
--- a/volunter/volunter/settings.py
+++ b/volunter/volunteer/settings.py
@@ -1,4 +1,7 @@
-# Django settings for volunter project.
+from unipath import Path
+
+
+PROJECT_DIR = Path(__file__).parent
 
 DEBUG = True
 TEMPLATE_DEBUG = DEBUG
@@ -11,8 +14,8 @@
 
 DATABASES = {
     'default': {
-        'ENGINE': 'django.db.backends.', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.
-        'NAME': '',                      # Or path to database file if using sqlite3.
+        'ENGINE': 'django.db.backends.sqlite3',  # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.
+        'NAME': PROJECT_DIR.child('volunteer.db'),
         # The following settings are not used with sqlite3:
         'USER': '',
         'PASSWORD': '',
@@ -50,18 +53,18 @@
 
 # Absolute filesystem path to the directory that will hold user-uploaded files.
 # Example: "/var/www/example.com/media/"
-MEDIA_ROOT = ''
+MEDIA_ROOT = PROJECT_DIR.child('media')
 
 # URL that handles the media served from MEDIA_ROOT. Make sure to use a
 # trailing slash.
 # Examples: "http://example.com/media/", "http://media.example.com/"
-MEDIA_URL = ''
+MEDIA_URL = '/media/'
 
 # Absolute path to the directory static files should be collected to.
 # Don't put anything in this directory yourself; store your static files
 # in apps' "static/" subdirectories and in STATICFILES_DIRS.
 # Example: "/var/www/example.com/static/"
-STATIC_ROOT = ''
+STATIC_ROOT = PROJECT_DIR.child('static')
 
 # URL prefix for static files.
 # Example: "http://example.com/static/", "http://static.example.com/"
@@ -69,9 +72,7 @@
 
 # Additional locations of static files
 STATICFILES_DIRS = (
-    # Put strings here, like "/home/html/static" or "C:/www/django/static".
-    # Always use forward slashes, even on Windows.
-    # Don't forget to use absolute paths, not relative paths.
+    PROJECT_DIR.child('volunteer', 'static'),
 )
 
 # List of finder classes that know how to find static files in
@@ -79,7 +80,7 @@
 STATICFILES_FINDERS = (
     'django.contrib.staticfiles.finders.FileSystemFinder',
     'django.contrib.staticfiles.finders.AppDirectoriesFinder',
-#    'django.contrib.staticfiles.finders.DefaultStorageFinder',
+    # 'django.contrib.staticfiles.finders.DefaultStorageFinder',
 )
 
 # Make this unique, and don't share it with anybody.
@@ -89,7 +90,7 @@
 TEMPLATE_LOADERS = (
     'django.template.loaders.filesystem.Loader',
     'django.template.loaders.app_directories.Loader',
-#     'django.template.loaders.eggs.Loader',
+    # 'django.template.loaders.eggs.Loader',
 )
 
 MIDDLEWARE_CLASSES = (
@@ -102,10 +103,10 @@
     # 'django.middleware.clickjacking.XFrameOptionsMiddleware',
 )
 
-ROOT_URLCONF = 'volunter.urls'
+ROOT_URLCONF = 'volunteer.urls'
 
 # Python dotted path to the WSGI application used by Django's runserver.
-WSGI_APPLICATION = 'volunter.wsgi.application'
+WSGI_APPLICATION = 'volunteer.wsgi.application'
 
 TEMPLATE_DIRS = (
     # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates".
@@ -120,10 +121,9 @@
     'django.contrib.sites',
     'django.contrib.messages',
     'django.contrib.staticfiles',
-    # Uncomment the next line to enable the admin:
-    # 'django.contrib.admin',
-    # Uncomment the next line to enable admin documentation:
-    # 'django.contrib.admindocs',
+    'django.contrib.admin',
+    # our
+    'volunteer.app.core',
 )
 
 # A sample logging configuration. The only tangible logging
diff --git a/volunter/volunteer/urls.py b/volunter/volunteer/urls.py
new file mode 100644
index 0000000..56d37d7
--- /dev/null
+++ b/volunter/volunteer/urls.py
@@ -0,0 +1,7 @@
+from django.conf.urls import patterns, include, url
+from django.contrib import admin
+admin.autodiscover()
+
+urlpatterns = patterns('',
+    url(r'^admin/', include(admin.site.urls)),
+)
diff --git a/volunter/volunter/wsgi.py b/volunter/volunteer/wsgi.py
similarity index 95%
rename from volunter/volunter/wsgi.py
rename to volunter/volunteer/wsgi.py
index 47c6a8e..ac6693a 100644
--- a/volunter/volunter/wsgi.py
+++ b/volunter/volunteer/wsgi.py
@@ -19,7 +19,7 @@
 # if running multiple sites in the same mod_wsgi process. To fix this, use
 # mod_wsgi daemon mode with each site in its own daemon process, or use
 # os.environ["DJANGO_SETTINGS_MODULE"] = "volunter.settings"
-os.environ.setdefault("DJANGO_SETTINGS_MODULE", "volunter.settings")
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "volunteer.settings")
 
 # This application object is used by any WSGI server configured to use this
 # file. This includes Django's development server, if the WSGI_APPLICATION
diff --git a/volunter/volunter/app/core/models.py b/volunter/volunter/app/core/models.py
deleted file mode 100644
index 71a8362..0000000
--- a/volunter/volunter/app/core/models.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from django.db import models
-
-# Create your models here.
diff --git a/volunter/volunter/urls.py b/volunter/volunter/urls.py
deleted file mode 100644
index 2525aea..0000000
--- a/volunter/volunter/urls.py
+++ /dev/null
@@ -1,17 +0,0 @@
-from django.conf.urls import patterns, include, url
-
-# Uncomment the next two lines to enable the admin:
-# from django.contrib import admin
-# admin.autodiscover()
-
-urlpatterns = patterns('',
-    # Examples:
-    # url(r'^$', 'volunter.views.home', name='home'),
-    # url(r'^volunter/', include('volunter.foo.urls')),
-
-    # Uncomment the admin/doc line below to enable admin documentation:
-    # url(r'^admin/doc/', include('django.contrib.admindocs.urls')),
-
-    # Uncomment the next line to enable the admin:
-    # url(r'^admin/', include(admin.site.urls)),
-)