diff --git a/owslib/iso.py b/owslib/iso.py
index d5a29fa2..ae486b36 100644
--- a/owslib/iso.py
+++ b/owslib/iso.py
@@ -747,35 +747,20 @@ def __init__(self, md=None):
                     self.specificationdate.append(val)
 
 
-class SV_ServiceIdentification(object):
+class SV_ServiceIdentification(MD_DataIdentification):
     """ process SV_ServiceIdentification """
     def __init__(self, md=None):
+
+        super().__init__(md, 'service')
+
         if md is None:
-            self.title = None
-            self.abstract = None
-            self.contact = None
-            self.identtype = 'service'
             self.type = None
             self.version = None
             self.fees = None
-            self.bbox = None
             self.couplingtype = None
             self.operations = []
             self.operateson = []
         else:
-            val = md.find(util.nspath_eval('gmd:citation/gmd:CI_Citation/gmd:title/gco:CharacterString', namespaces))
-            self.title = util.testXMLValue(val)
-
-            val = md.find(util.nspath_eval('gmd:abstract/gco:CharacterString', namespaces))
-            self.abstract = util.testXMLValue(val)
-
-            self.contact = None
-            val = md.find(util.nspath_eval(
-                'gmd:citation/gmd:CI_Citation/gmd:citedResponsibleParty/gmd:CI_ResponsibleParty', namespaces))
-            if val is not None:
-                self.contact = CI_ResponsibleParty(val)
-
-            self.identtype = 'service'
             val = md.find(util.nspath_eval('srv:serviceType/gco:LocalName', namespaces))
             self.type = util.testXMLValue(val)
 
@@ -786,13 +771,6 @@ def __init__(self, md=None):
                 'srv:accessProperties/gmd:MD_StandardOrderProcess/gmd:fees/gco:CharacterString', namespaces))
             self.fees = util.testXMLValue(val)
 
-            val = md.find(util.nspath_eval('srv:extent/gmd:EX_Extent', namespaces))
-
-            if val is not None:
-                self.bbox = EX_Extent(val)
-            else:
-                self.bbox = None
-
             self.couplingtype = _testCodeListValue(md.find(util.nspath_eval(
                 'gmd:couplingType/gmd:SV_CouplingType', namespaces)))
 
diff --git a/tests/doctests/iso_parse.txt b/tests/doctests/iso_parse.txt
index 611c735b..f1dc87bd 100755
--- a/tests/doctests/iso_parse.txt
+++ b/tests/doctests/iso_parse.txt
@@ -3,7 +3,7 @@ Imports
 
     >>> from tests.utils import resource_file
     >>> from owslib.etree import etree
-	>>> from owslib.iso import MD_Metadata
+    >>> from owslib.iso import MD_Metadata
 
 Print testing some metadata elements
 
@@ -15,14 +15,14 @@ Print testing some metadata elements
     >>> x.identification[1].title
     'Parameter-elevation Regressions on Independent Slopes Model Monthly Climate Data for the Continental United States. February 2013 Snapshot'
 
-	>>> x.identification[1].abstract[0:40]
-	'This dataset was created using the PRISM'
-	
-	>>> x.identification[1].contact.name
-	'Christopher Daley'
-	
-	>>> x.identification[1].contact.email
-	'daley@nacse.org'
-
-	>>> x.identification[1].operations[0]['connectpoint'][0].url
-	'http://cida.usgs.gov/thredds/dodsC/prism'
+    >>> x.identification[1].abstract[0:40]
+    'This dataset was created using the PRISM'
+
+    >>> x.contact[0].name
+    'Christopher Daley'
+
+    >>> x.contact[0].email
+    'daley@nacse.org'
+
+    >>> x.identification[1].operations[0]['connectpoint'][0].url
+    'http://cida.usgs.gov/thredds/dodsC/prism'