diff --git a/SimPEG/__init__.py b/SimPEG/__init__.py
index e8295092..f455e866 100644
--- a/SimPEG/__init__.py
+++ b/SimPEG/__init__.py
@@ -3,10 +3,11 @@ import scipy.sparse as sp
 import utils
 from utils import Solver
 import mesh
-import inverse
-import visualize
+import data
 import forward
 import regularization
+import inverse
+import visualize
 import examples
 
 import scipy.version as _v
diff --git a/SimPEG/data/__init__.py b/SimPEG/data/__init__.py
new file mode 100644
index 00000000..86123003
--- /dev/null
+++ b/SimPEG/data/__init__.py
@@ -0,0 +1,20 @@
+from SimPEG import utils
+
+
+class SimPEGData(object):
+    """Data holds the observed data, and the standard deviations."""
+
+    __metaclass__ = utils.Save.Savable
+
+    std = None    #: Estimated Standard Deviations
+    dobs = None   #: Observed data
+    dtrue = None  #: True data, if data is synthetic
+    mtrue = None  #: True model, if data is synthetic
+
+    def __init__(self, prob, **kwargs):
+        utils.setKwargs(self, **kwargs)
+        self.prob = prob
+
+    def isSynthetic(self):
+        "Check if the data is synthetic."
+        return self.mtrue is not None