diff --git a/plstackapi/core/models.py b/plstackapi/core/models.py
new file mode 100644
index 0000000..4ea2a25
--- /dev/null
+++ b/plstackapi/core/models.py
@@ -0,0 +1,65 @@
+from django.db import models
+
+# Create your models here.
+
+class PlCoreBase(models.Model):
+
+    created = models.DateTimeField(auto_now_add=True)
+    updated = models.DateTimeField(auto_now=True)
+
+    class Meta:
+        abstract = True
+
+class Site(PlCoreBase):
+    name = models.CharField(max_length=200, unique=True, help_text="Name for this Site")
+    site_url = models.URLField(help_text="Site's Home URL Page")
+    enabled = models.BooleanField(default=True, help_text="Status for this Site")
+    longitude = models.FloatField(null=True, blank=True)
+    latitude = models.FloatField(null=True, blank=True)
+    login_base = models.CharField(max_length=50, help_text="Prefix for Slices associated with this Site")
+    is_public = models.BooleanField(default=True, help_text="Indicates the visibility of this site to other members")
+    abbreviated_name = models.CharField(max_length=80)
+
+    def __unicode__(self):  return u'%s' % (self.name)
+
+class Slice(PlCoreBase):
+    name = models.CharField(help_text="The Name of the Slice", max_length=80)
+    SLICE_CHOICES = (('plc', 'PLC'), ('delegated', 'Delegated'), ('controller','Controller'), ('none','None'))
+    instantiation = models.CharField(help_text="The instantiation type of the slice", max_length=80, choices=SLICE_CHOICES)
+    omf_friendly = models.BooleanField()
+    description=models.TextField(blank=True,help_text="High level description of the slice and expected activities", max_length=1024)
+    slice_url = models.URLField(blank=True)
+    site = models.ForeignKey(Site, related_name='slices', help_text="The Site this Node belongs too")
+
+    def __unicode__(self):  return u'%s' % (self.name)
+
+class DeploymentNetwork(PlCoreBase):
+    name = models.CharField(max_length=200, unique=True, help_text="Name of the Deployment Network")
+
+    def __unicode__(self):  return u'%s' % (self.name)
+
+class SiteDeploymentNetwork(PlCoreBase):
+    class Meta:
+        unique_together = ['site', 'deploymentNetwork']
+
+    site = models.ForeignKey(Site, related_name='deploymentNetworks')
+    deploymentNetwork = models.ForeignKey(DeploymentNetwork, related_name='sites')
+    name = models.CharField(default="Blah", max_length=100)
+    
+
+    def __unicode__(self):  return u'%s::%s' % (self.site, self.deploymentNetwork)
+
+
+class Sliver(PlCoreBase):
+    name = models.CharField(max_length=200, unique=True)
+    slice = models.ForeignKey(Slice)
+    siteDeploymentNetwork = models.ForeignKey(SiteDeploymentNetwork)
+
+    def __unicode__(self):  return u'%s::%s' % (self.slice, self.siteDeploymentNetwork)
+
+class Node(PlCoreBase):
+    name = models.CharField(max_length=200, unique=True, help_text="Name of the Node")
+    siteDeploymentNetwork = models.ForeignKey(SiteDeploymentNetwork, help_text="The Site and Deployment Network this Node belongs too.")
+
+    def __unicode__(self):  return u'%s' % (self.name)
+