diff --git a/Framework/API/inc/MantidAPI/ILatticeFunction.h b/Framework/API/inc/MantidAPI/ILatticeFunction.h
index ec65576109d6a10ba09412df9c207bad46897741..52be615d677acb375881ade81835cd93bcc1edfb 100644
--- a/Framework/API/inc/MantidAPI/ILatticeFunction.h
+++ b/Framework/API/inc/MantidAPI/ILatticeFunction.h
@@ -55,7 +55,7 @@ public:
                                     Jacobian &jacobian);
 
   /// A string that names the crystal system.
-  virtual void setCrystalSystem(const std::string &crystalSystem) = 0;
+  virtual void setLatticeSystem(const std::string &crystalSystem) = 0;
 
   /// Set the function parameters according to the supplied unit cell.
   virtual void setUnitCell(const std::string &unitCellString) = 0;
diff --git a/Framework/API/inc/MantidAPI/IPawleyFunction.h b/Framework/API/inc/MantidAPI/IPawleyFunction.h
index f560667902f0fcfd7acb7e3269363875c7e66791..ab3e39bd3474ed2f7542ec741780a601ed56549a 100644
--- a/Framework/API/inc/MantidAPI/IPawleyFunction.h
+++ b/Framework/API/inc/MantidAPI/IPawleyFunction.h
@@ -44,7 +44,7 @@ public:
   virtual ~IPawleyFunction() {}
 
   /// A string that names the crystal system.
-  virtual void setCrystalSystem(const std::string &crystalSystem) = 0;
+  virtual void setLatticeSystem(const std::string &crystalSystem) = 0;
 
   /// Sets the name of the profile function used for the reflections.
   virtual void setProfileFunction(const std::string &profileFunction) = 0;
diff --git a/Framework/API/test/ILatticeFunctionTest.h b/Framework/API/test/ILatticeFunctionTest.h
index a1d67bac27580d9c701bc043d5d49c8e42331582..78f3d8210145057b7eccf200391bc141ddb057bf 100644
--- a/Framework/API/test/ILatticeFunctionTest.h
+++ b/Framework/API/test/ILatticeFunctionTest.h
@@ -90,7 +90,7 @@ private:
 
     MOCK_METHOD2(functionDerivLattice, void(const LatticeDomain &, Jacobian &));
 
-    MOCK_METHOD1(setCrystalSystem, void(const std::string &));
+    MOCK_METHOD1(setLatticeSystem, void(const std::string &));
     MOCK_METHOD1(setUnitCell, void(const std::string &));
     MOCK_METHOD1(setUnitCell, void(const Mantid::Geometry::UnitCell &));
     MOCK_CONST_METHOD0(getUnitCell, Mantid::Geometry::UnitCell());
diff --git a/Framework/Crystal/src/OptimizeLatticeForCellType.cpp b/Framework/Crystal/src/OptimizeLatticeForCellType.cpp
index 69601604f705d05258cb1838e948873095112d72..e1965f5f3e0cee0b388d1917de99851011b6871e 100644
--- a/Framework/Crystal/src/OptimizeLatticeForCellType.cpp
+++ b/Framework/Crystal/src/OptimizeLatticeForCellType.cpp
@@ -233,11 +233,7 @@ API::ILatticeFunction_sptr
 OptimizeLatticeForCellType::getLatticeFunction(const std::string &cellType,
                                                const UnitCell &cell) const {
   std::ostringstream fun_str;
-  // TODO remove next 3 lines when PointGroup is changed
-  if (cellType == "Rhombohedral")
-    fun_str << "name=LatticeFunction,CrystalSystem=Trigonal";
-  else
-    fun_str << "name=LatticeFunction,CrystalSystem=" << cellType;
+  fun_str << "name=LatticeFunction,LatticeSystem=" << cellType;
 
   API::IFunction_sptr rawFunction =
       API::FunctionFactory::Instance().createInitialized(fun_str.str());
diff --git a/Framework/CurveFitting/inc/MantidCurveFitting/Functions/PawleyFunction.h b/Framework/CurveFitting/inc/MantidCurveFitting/Functions/PawleyFunction.h
index a56373b31075af5abccf29966b2c68b123f557a1..b2da45f02b56a3c18fd7fbe411d2b88b244863f6 100644
--- a/Framework/CurveFitting/inc/MantidCurveFitting/Functions/PawleyFunction.h
+++ b/Framework/CurveFitting/inc/MantidCurveFitting/Functions/PawleyFunction.h
@@ -36,7 +36,7 @@ public:
 
   void setAttribute(const std::string &attName, const Attribute &attValue);
 
-  Geometry::PointGroup::CrystalSystem getCrystalSystem() const;
+  Geometry::PointGroup::LatticeSystem getLatticeSystem() const;
   Geometry::UnitCell getUnitCellFromParameters() const;
   void setParametersFromUnitCell(const Geometry::UnitCell &cell);
 
@@ -59,10 +59,10 @@ protected:
   void init();
 
   void setProfileFunction(const std::string &profileFunction);
-  void setCrystalSystem(const std::string &crystalSystem);
+  void setLatticeSystem(const std::string &latticeSystem);
 
-  void createCrystalSystemParameters(
-      Geometry::PointGroup::CrystalSystem crystalSystem);
+  void createLatticeSystemParameters(
+      Geometry::PointGroup::LatticeSystem latticeSystem);
 
   void addLengthConstraint(const std::string &parameterName);
   void addAngleConstraint(const std::string &parameterName);
@@ -70,7 +70,7 @@ protected:
   void setCenterParameterNameFromFunction(
       const API::IPeakFunction_sptr &profileFunction);
 
-  Geometry::PointGroup::CrystalSystem m_crystalSystem;
+  Geometry::PointGroup::LatticeSystem m_latticeSystem;
   std::string m_profileFunctionCenterParameterName;
 };
 
@@ -123,7 +123,7 @@ public:
   setMatrixWorkspace(boost::shared_ptr<const API::MatrixWorkspace> workspace,
                      size_t wi, double startX, double endX);
 
-  void setCrystalSystem(const std::string &crystalSystem);
+  void setLatticeSystem(const std::string &latticeSystem);
   void setProfileFunction(const std::string &profileFunction);
   void setUnitCell(const std::string &unitCellString);
 
diff --git a/Framework/CurveFitting/inc/MantidCurveFitting/LatticeFunction.h b/Framework/CurveFitting/inc/MantidCurveFitting/LatticeFunction.h
index 3c8886b0b648fe6475b0312904f2987fe694581e..10d92176be846df09948184274be814cb4469ee7 100644
--- a/Framework/CurveFitting/inc/MantidCurveFitting/LatticeFunction.h
+++ b/Framework/CurveFitting/inc/MantidCurveFitting/LatticeFunction.h
@@ -51,7 +51,7 @@ public:
   void functionLattice(const API::LatticeDomain &latticeDomain,
                        API::FunctionValues &values) const;
 
-  void setCrystalSystem(const std::string &crystalSystem);
+  void setLatticeSystem(const std::string &crystalSystem);
   void setUnitCell(const std::string &unitCellString);
   void setUnitCell(const Geometry::UnitCell &unitCell);
   Geometry::UnitCell getUnitCell() const;
diff --git a/Framework/CurveFitting/src/Algorithms/PawleyFit.cpp b/Framework/CurveFitting/src/Algorithms/PawleyFit.cpp
index 22b87ff3efafd815630d8527b13152414abfe9cc..eeef4c6d58ba6b6fe8e7e6798fbc35cc4dacc79e 100644
--- a/Framework/CurveFitting/src/Algorithms/PawleyFit.cpp
+++ b/Framework/CurveFitting/src/Algorithms/PawleyFit.cpp
@@ -199,21 +199,21 @@ void PawleyFit::init() {
   declareProperty("StartX", 0.0, "Lower border of fitted data range.");
   declareProperty("EndX", 0.0, "Upper border of fitted data range.");
 
-  std::vector<std::string> crystalSystems;
-  crystalSystems.push_back("Cubic");
-  crystalSystems.push_back("Tetragonal");
-  crystalSystems.push_back("Hexagonal");
-  crystalSystems.push_back("Trigonal");
-  crystalSystems.push_back("Orthorhombic");
-  crystalSystems.push_back("Monoclinic");
-  crystalSystems.push_back("Triclinic");
-
-  auto crystalSystemValidator =
-      boost::make_shared<StringListValidator>(crystalSystems);
-
-  declareProperty("CrystalSystem", crystalSystems.back(),
-                  crystalSystemValidator,
-                  "Crystal system to use for refinement.");
+  std::vector<std::string> latticeSystems;
+  latticeSystems.push_back("Cubic");
+  latticeSystems.push_back("Tetragonal");
+  latticeSystems.push_back("Hexagonal");
+  latticeSystems.push_back("Rhombohedral");
+  latticeSystems.push_back("Orthorhombic");
+  latticeSystems.push_back("Monoclinic");
+  latticeSystems.push_back("Triclinic");
+
+  auto latticeSystemValidator =
+      boost::make_shared<StringListValidator>(latticeSystems);
+
+  declareProperty("LatticeSystem", latticeSystems.back(),
+                  latticeSystemValidator,
+                  "Lattice system to use for refinement.");
 
   declareProperty("InitialCell", "1.0 1.0 1.0 90.0 90.0 90.0",
                   "Specification of initial unit cell, given as 'a, b, c, "
@@ -282,9 +282,9 @@ void PawleyFit::exec() {
   g_log.information() << "  Selected profile function: " << profileFunction
                       << std::endl;
 
-  std::string crystalSystem = getProperty("CrystalSystem");
-  pawleyFn->setCrystalSystem(crystalSystem);
-  g_log.information() << "  Selected crystal system: " << crystalSystem
+  std::string latticeSystem = getProperty("LatticeSystem");
+  pawleyFn->setLatticeSystem(latticeSystem);
+  g_log.information() << "  Selected crystal system: " << latticeSystem
                       << std::endl;
 
   pawleyFn->setUnitCell(getProperty("InitialCell"));
diff --git a/Framework/CurveFitting/src/Functions/PawleyFunction.cpp b/Framework/CurveFitting/src/Functions/PawleyFunction.cpp
index d265aa9d56a750cae246b04e4ecc8936feb5d138..33ca783ae1cb436bc4919d2cda947888a670fec7 100644
--- a/Framework/CurveFitting/src/Functions/PawleyFunction.cpp
+++ b/Framework/CurveFitting/src/Functions/PawleyFunction.cpp
@@ -28,22 +28,22 @@ using namespace Kernel;
 
 /// Constructor
 PawleyParameterFunction::PawleyParameterFunction()
-    : ParamFunction(), m_crystalSystem(PointGroup::CrystalSystem::Triclinic),
+    : ParamFunction(), m_latticeSystem(PointGroup::LatticeSystem::Triclinic),
       m_profileFunctionCenterParameterName() {}
 
 /**
  * @brief Sets the supplied attribute value
  *
  * The function calls ParamFunction::setAttribute, but performs additional
- * actions for CrystalSystem and ProfileFunction.
+ * actions for latticeSystem and ProfileFunction.
  *
  * @param attName :: Name of the attribute
  * @param attValue :: Value of the attribute
  */
 void PawleyParameterFunction::setAttribute(const std::string &attName,
                                            const Attribute &attValue) {
-  if (attName == "CrystalSystem") {
-    setCrystalSystem(attValue.asString());
+  if (attName == "LatticeSystem") {
+    setLatticeSystem(attValue.asString());
   } else if (attName == "ProfileFunction") {
     setProfileFunction(attValue.asString());
   }
@@ -52,35 +52,35 @@ void PawleyParameterFunction::setAttribute(const std::string &attName,
 }
 
 /// Returns the crystal system
-PointGroup::CrystalSystem PawleyParameterFunction::getCrystalSystem() const {
-  return m_crystalSystem;
+PointGroup::LatticeSystem PawleyParameterFunction::getLatticeSystem() const {
+  return m_latticeSystem;
 }
 
 /// Returns a UnitCell object constructed from the function's parameters.
 UnitCell PawleyParameterFunction::getUnitCellFromParameters() const {
-  switch (m_crystalSystem) {
-  case PointGroup::CrystalSystem::Cubic: {
+  switch (m_latticeSystem) {
+  case PointGroup::LatticeSystem::Cubic: {
     double a = getParameter("a");
     double aErr = getError(0);
     UnitCell uc(a, a, a);
     uc.setError(aErr, aErr, aErr, 0.0, 0.0, 0.0);
     return uc;
   }
-  case PointGroup::CrystalSystem::Tetragonal: {
+  case PointGroup::LatticeSystem::Tetragonal: {
     double a = getParameter("a");
     double aErr = getError(0);
     UnitCell uc(a, a, getParameter("c"));
     uc.setError(aErr, aErr, getError(1), 0.0, 0.0, 0.0);
     return uc;
   }
-  case PointGroup::CrystalSystem::Hexagonal: {
+  case PointGroup::LatticeSystem::Hexagonal: {
     double a = getParameter("a");
     double aErr = getError(0);
     UnitCell uc(a, a, getParameter("c"), 90, 90, 120);
     uc.setError(aErr, aErr, getError(1), 0.0, 0.0, 0.0);
     return uc;
   }
-  case PointGroup::CrystalSystem::Trigonal: {
+  case PointGroup::LatticeSystem::Rhombohedral: {
     double a = getParameter("a");
     double alpha = getParameter("Alpha");
     double aErr = getError(0);
@@ -89,18 +89,18 @@ UnitCell PawleyParameterFunction::getUnitCellFromParameters() const {
     uc.setError(aErr, aErr, aErr, alphaErr, alphaErr, alphaErr);
     return uc;
   }
-  case PointGroup::CrystalSystem::Orthorhombic: {
+  case PointGroup::LatticeSystem::Orthorhombic: {
     UnitCell uc(getParameter("a"), getParameter("b"), getParameter("c"));
     uc.setError(getError(0), getError(1), getError(2), 0.0, 0.0, 0.0);
     return uc;
   }
-  case PointGroup::CrystalSystem::Monoclinic: {
+  case PointGroup::LatticeSystem::Monoclinic: {
     UnitCell uc(getParameter("a"), getParameter("b"), getParameter("c"), 90,
                 getParameter("Beta"), 90);
     uc.setError(getError(0), getError(1), getError(2), 0.0, getError(3), 0.0);
     return uc;
   }
-  case PointGroup::CrystalSystem::Triclinic: {
+  case PointGroup::LatticeSystem::Triclinic: {
     UnitCell uc(getParameter("a"), getParameter("b"), getParameter("c"),
                 getParameter("Alpha"), getParameter("Beta"),
                 getParameter("Gamma"));
@@ -163,10 +163,10 @@ void PawleyParameterFunction::functionDeriv(const FunctionDomain &domain,
 
 /// Declares attributes and generates parameters based on the defaults.
 void PawleyParameterFunction::init() {
-  declareAttribute("CrystalSystem", IFunction::Attribute("Triclinic"));
+  declareAttribute("LatticeSystem", IFunction::Attribute("Triclinic"));
   declareAttribute("ProfileFunction", IFunction::Attribute("Gaussian"));
 
-  setCrystalSystem("Triclinic");
+  setLatticeSystem("Triclinic");
   setProfileFunction("Gaussian");
 }
 
@@ -193,44 +193,44 @@ void PawleyParameterFunction::setProfileFunction(
 }
 
 /**
- * Assigns the crystal system
+ * Assigns the lattice system
  *
- * This method takes the name of a crystal system (case insensitive) and stores
+ * This method takes the name of a lattice system (case insensitive) and stores
  * it. Furthermore it creates the necessary parameters, which means that after
  * calling this function, PawleyParameterFunction potentially exposes a
  * different number of parameters. The parameters are constrained to physically
  * meaningful values (angles between 0 and 180 degrees, cell edges above 0).
  *
- * @param crystalSystem :: Crystal system, case insensitive.
+ * @param latticeSystem :: Crystal system, case insensitive.
  */
-void PawleyParameterFunction::setCrystalSystem(
-    const std::string &crystalSystem) {
-  m_crystalSystem = Geometry::getCrystalSystemFromString(crystalSystem);
+void PawleyParameterFunction::setLatticeSystem(
+    const std::string &latticeSystem) {
+  m_latticeSystem = Geometry::getLatticeSystemFromString(latticeSystem);
 
-  createCrystalSystemParameters(m_crystalSystem);
+  createLatticeSystemParameters(m_latticeSystem);
 }
 
 /// This method clears all parameters and declares parameters according to the
 /// supplied crystal system.
-void PawleyParameterFunction::createCrystalSystemParameters(
-    PointGroup::CrystalSystem crystalSystem) {
+void PawleyParameterFunction::createLatticeSystemParameters(
+    PointGroup::LatticeSystem latticeSystem) {
 
   clearAllParameters();
-  switch (crystalSystem) {
-  case PointGroup::CrystalSystem::Cubic:
+  switch (latticeSystem) {
+  case PointGroup::LatticeSystem::Cubic:
     declareParameter("a", 1.0);
     addLengthConstraint("a");
     break;
 
-  case PointGroup::CrystalSystem::Hexagonal:
-  case PointGroup::CrystalSystem::Tetragonal:
+  case PointGroup::LatticeSystem::Hexagonal:
+  case PointGroup::LatticeSystem::Tetragonal:
     declareParameter("a", 1.0);
     declareParameter("c", 1.0);
     addLengthConstraint("a");
     addLengthConstraint("c");
     break;
 
-  case PointGroup::CrystalSystem::Orthorhombic:
+  case PointGroup::LatticeSystem::Orthorhombic:
     declareParameter("a", 1.0);
     declareParameter("b", 1.0);
     declareParameter("c", 1.0);
@@ -239,7 +239,7 @@ void PawleyParameterFunction::createCrystalSystemParameters(
     addLengthConstraint("c");
     break;
 
-  case PointGroup::CrystalSystem::Monoclinic:
+  case PointGroup::LatticeSystem::Monoclinic:
     declareParameter("a", 1.0);
     declareParameter("b", 1.0);
     declareParameter("c", 1.0);
@@ -251,7 +251,7 @@ void PawleyParameterFunction::createCrystalSystemParameters(
     addAngleConstraint("Beta");
     break;
 
-  case PointGroup::CrystalSystem::Trigonal:
+  case PointGroup::LatticeSystem::Rhombohedral:
     declareParameter("a", 1.0);
     declareParameter("Alpha", 90.0);
     addLengthConstraint("a");
@@ -346,8 +346,8 @@ void PawleyFunction::setMatrixWorkspace(
 
 /// Sets the crystal system on the internal parameter function and updates the
 /// exposed parameters
-void PawleyFunction::setCrystalSystem(const std::string &crystalSystem) {
-  m_pawleyParameterFunction->setAttributeValue("CrystalSystem", crystalSystem);
+void PawleyFunction::setLatticeSystem(const std::string &latticeSystem) {
+  m_pawleyParameterFunction->setAttributeValue("LatticeSystem", latticeSystem);
   m_compositeFunction->checkFunction();
 }
 
diff --git a/Framework/CurveFitting/src/LatticeFunction.cpp b/Framework/CurveFitting/src/LatticeFunction.cpp
index 0fd29c73d2762d3ef7ee2772847997eee024d4b3..cacf0c763e65d570a1426943f31dffa1b73a8675 100644
--- a/Framework/CurveFitting/src/LatticeFunction.cpp
+++ b/Framework/CurveFitting/src/LatticeFunction.cpp
@@ -27,10 +27,10 @@ void LatticeFunction::functionLattice(const LatticeDomain &latticeDomain,
 
 /// Assigns the crystal system to the internally stored function. Number of
 /// parameters may change after this function call.
-void LatticeFunction::setCrystalSystem(const std::string &crystalSystem) {
+void LatticeFunction::setLatticeSystem(const std::string &crystalSystem) {
   throwIfNoFunctionSet();
 
-  m_cellParameters->setAttributeValue("CrystalSystem", crystalSystem);
+  m_cellParameters->setAttributeValue("LatticeSystem", crystalSystem);
 }
 
 /// Sets the unit cell parameters from a string that can be parsed by
diff --git a/Framework/CurveFitting/test/Algorithms/PawleyFitTest.h b/Framework/CurveFitting/test/Algorithms/PawleyFitTest.h
index 1766df896cd2ddba7d2486f7210f2496a25dd0fd..286c3e62f943b556862013bf02e30bdc0a875388 100644
--- a/Framework/CurveFitting/test/Algorithms/PawleyFitTest.h
+++ b/Framework/CurveFitting/test/Algorithms/PawleyFitTest.h
@@ -52,7 +52,7 @@ public:
     IAlgorithm_sptr pFit = AlgorithmManager::Instance().create("PawleyFit");
     pFit->setProperty("InputWorkspace", ws);
     pFit->setProperty("WorkspaceIndex", 0);
-    pFit->setProperty("CrystalSystem", "Hexagonal");
+    pFit->setProperty("LatticeSystem", "Hexagonal");
     pFit->setProperty("InitialCell", "2.444 2.441 3.937 90 90 120");
     pFit->setProperty("PeakTable", hkls);
     pFit->setProperty("OutputWorkspace", "HCP_output");
@@ -101,7 +101,7 @@ public:
     IAlgorithm_sptr pFit = AlgorithmManager::Instance().create("PawleyFit");
     pFit->setProperty("InputWorkspace", ws);
     pFit->setProperty("WorkspaceIndex", 0);
-    pFit->setProperty("CrystalSystem", "Orthorhombic");
+    pFit->setProperty("LatticeSystem", "Orthorhombic");
     pFit->setProperty("InitialCell", "2.44 3.13 4.07 90 90 90");
     pFit->setProperty("PeakTable", hkls);
     pFit->setProperty("EnableChebyshevBackground", true);
diff --git a/Framework/CurveFitting/test/Functions/PawleyFunctionTest.h b/Framework/CurveFitting/test/Functions/PawleyFunctionTest.h
index 2c6b1f8a1c9de561e6fed97a589c7152d9af2f99..a2d2a463d6b8dd9a0a416143f4f3b9c99e458301 100644
--- a/Framework/CurveFitting/test/Functions/PawleyFunctionTest.h
+++ b/Framework/CurveFitting/test/Functions/PawleyFunctionTest.h
@@ -23,100 +23,100 @@ public:
   static PawleyFunctionTest *createSuite() { return new PawleyFunctionTest(); }
   static void destroySuite(PawleyFunctionTest *suite) { delete suite; }
 
-  void testCrystalSystem() {
+  void testLatticeSystem() {
     PawleyParameterFunction fn;
     fn.initialize();
 
-    TS_ASSERT(fn.hasAttribute("CrystalSystem"));
+    TS_ASSERT(fn.hasAttribute("LatticeSystem"));
 
     // Cubic, check case insensitivity
-    TS_ASSERT_THROWS_NOTHING(fn.setAttributeValue("CrystalSystem", "cubic"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(), PointGroup::CrystalSystem::Cubic);
-    TS_ASSERT_THROWS_NOTHING(fn.setAttributeValue("CrystalSystem", "Cubic"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(), PointGroup::CrystalSystem::Cubic);
-    TS_ASSERT_THROWS_NOTHING(fn.setAttributeValue("CrystalSystem", "CUBIC"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(), PointGroup::CrystalSystem::Cubic);
+    TS_ASSERT_THROWS_NOTHING(fn.setAttributeValue("LatticeSystem", "cubic"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(), PointGroup::LatticeSystem::Cubic);
+    TS_ASSERT_THROWS_NOTHING(fn.setAttributeValue("LatticeSystem", "Cubic"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(), PointGroup::LatticeSystem::Cubic);
+    TS_ASSERT_THROWS_NOTHING(fn.setAttributeValue("LatticeSystem", "CUBIC"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(), PointGroup::LatticeSystem::Cubic);
 
     // Tetragonal
     TS_ASSERT_THROWS_NOTHING(
-        fn.setAttributeValue("CrystalSystem", "tetragonal"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(),
-                     PointGroup::CrystalSystem::Tetragonal);
+        fn.setAttributeValue("LatticeSystem", "tetragonal"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(),
+                     PointGroup::LatticeSystem::Tetragonal);
     TS_ASSERT_THROWS_NOTHING(
-        fn.setAttributeValue("CrystalSystem", "Tetragonal"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(),
-                     PointGroup::CrystalSystem::Tetragonal);
+        fn.setAttributeValue("LatticeSystem", "Tetragonal"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(),
+                     PointGroup::LatticeSystem::Tetragonal);
     TS_ASSERT_THROWS_NOTHING(
-        fn.setAttributeValue("CrystalSystem", "TETRAGONAL"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(),
-                     PointGroup::CrystalSystem::Tetragonal);
+        fn.setAttributeValue("LatticeSystem", "TETRAGONAL"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(),
+                     PointGroup::LatticeSystem::Tetragonal);
 
     // Hexagonal
     TS_ASSERT_THROWS_NOTHING(
-        fn.setAttributeValue("CrystalSystem", "hexagonal"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(),
-                     PointGroup::CrystalSystem::Hexagonal);
+        fn.setAttributeValue("LatticeSystem", "hexagonal"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(),
+                     PointGroup::LatticeSystem::Hexagonal);
     TS_ASSERT_THROWS_NOTHING(
-        fn.setAttributeValue("CrystalSystem", "Hexagonal"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(),
-                     PointGroup::CrystalSystem::Hexagonal);
+        fn.setAttributeValue("LatticeSystem", "Hexagonal"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(),
+                     PointGroup::LatticeSystem::Hexagonal);
     TS_ASSERT_THROWS_NOTHING(
-        fn.setAttributeValue("CrystalSystem", "HEXAGONAL"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(),
-                     PointGroup::CrystalSystem::Hexagonal);
+        fn.setAttributeValue("LatticeSystem", "HEXAGONAL"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(),
+                     PointGroup::LatticeSystem::Hexagonal);
 
     // Orthorhombic
     TS_ASSERT_THROWS_NOTHING(
-        fn.setAttributeValue("CrystalSystem", "orthorhombic"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(),
-                     PointGroup::CrystalSystem::Orthorhombic);
+        fn.setAttributeValue("LatticeSystem", "orthorhombic"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(),
+                     PointGroup::LatticeSystem::Orthorhombic);
     TS_ASSERT_THROWS_NOTHING(
-        fn.setAttributeValue("CrystalSystem", "Orthorhombic"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(),
-                     PointGroup::CrystalSystem::Orthorhombic);
+        fn.setAttributeValue("LatticeSystem", "Orthorhombic"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(),
+                     PointGroup::LatticeSystem::Orthorhombic);
     TS_ASSERT_THROWS_NOTHING(
-        fn.setAttributeValue("CrystalSystem", "ORTHORHOMBIC"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(),
-                     PointGroup::CrystalSystem::Orthorhombic);
+        fn.setAttributeValue("LatticeSystem", "ORTHORHOMBIC"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(),
+                     PointGroup::LatticeSystem::Orthorhombic);
 
     // Monoclinic
     TS_ASSERT_THROWS_NOTHING(
-        fn.setAttributeValue("CrystalSystem", "monoclinic"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(),
-                     PointGroup::CrystalSystem::Monoclinic);
+        fn.setAttributeValue("LatticeSystem", "monoclinic"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(),
+                     PointGroup::LatticeSystem::Monoclinic);
     TS_ASSERT_THROWS_NOTHING(
-        fn.setAttributeValue("CrystalSystem", "Monoclinic"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(),
-                     PointGroup::CrystalSystem::Monoclinic);
+        fn.setAttributeValue("LatticeSystem", "Monoclinic"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(),
+                     PointGroup::LatticeSystem::Monoclinic);
     TS_ASSERT_THROWS_NOTHING(
-        fn.setAttributeValue("CrystalSystem", "MONOCLINIC"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(),
-                     PointGroup::CrystalSystem::Monoclinic);
+        fn.setAttributeValue("LatticeSystem", "MONOCLINIC"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(),
+                     PointGroup::LatticeSystem::Monoclinic);
 
     // Triclinic
     TS_ASSERT_THROWS_NOTHING(
-        fn.setAttributeValue("CrystalSystem", "triclinic"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(),
-                     PointGroup::CrystalSystem::Triclinic);
+        fn.setAttributeValue("LatticeSystem", "triclinic"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(),
+                     PointGroup::LatticeSystem::Triclinic);
     TS_ASSERT_THROWS_NOTHING(
-        fn.setAttributeValue("CrystalSystem", "Triclinic"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(),
-                     PointGroup::CrystalSystem::Triclinic);
+        fn.setAttributeValue("LatticeSystem", "Triclinic"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(),
+                     PointGroup::LatticeSystem::Triclinic);
     TS_ASSERT_THROWS_NOTHING(
-        fn.setAttributeValue("CrystalSystem", "TRICLINIC"));
-    TS_ASSERT_EQUALS(fn.getCrystalSystem(),
-                     PointGroup::CrystalSystem::Triclinic);
+        fn.setAttributeValue("LatticeSystem", "TRICLINIC"));
+    TS_ASSERT_EQUALS(fn.getLatticeSystem(),
+                     PointGroup::LatticeSystem::Triclinic);
 
     // invalid string
-    TS_ASSERT_THROWS(fn.setAttributeValue("CrystalSystem", "invalid"),
+    TS_ASSERT_THROWS(fn.setAttributeValue("LatticeSystem", "invalid"),
                      std::invalid_argument);
   }
 
-  void testCrystalSystemConstraintsCubic() {
+  void testLatticeSystemConstraintsCubic() {
     PawleyParameterFunction fn;
     fn.initialize();
 
-    fn.setAttributeValue("CrystalSystem", "Cubic");
+    fn.setAttributeValue("LatticeSystem", "Cubic");
 
     TS_ASSERT_EQUALS(fn.nParams(), 2);
 
@@ -133,11 +133,11 @@ public:
     cellParametersAre(cell, 3.0, 3.0, 3.0, 90.0, 90.0, 90.0);
   }
 
-  void testCrystalSystemConstraintsTetragonal() {
+  void testLatticeSystemConstraintsTetragonal() {
     PawleyParameterFunction fn;
     fn.initialize();
 
-    fn.setAttributeValue("CrystalSystem", "Tetragonal");
+    fn.setAttributeValue("LatticeSystem", "Tetragonal");
 
     TS_ASSERT_EQUALS(fn.nParams(), 3);
 
@@ -155,11 +155,11 @@ public:
     cellParametersAre(cell, 3.0, 3.0, 5.0, 90.0, 90.0, 90.0);
   }
 
-  void testCrystalSystemConstraintsHexagonal() {
+  void testLatticeSystemConstraintsHexagonal() {
     PawleyParameterFunction fn;
     fn.initialize();
 
-    fn.setAttributeValue("CrystalSystem", "Hexagonal");
+    fn.setAttributeValue("LatticeSystem", "Hexagonal");
 
     TS_ASSERT_EQUALS(fn.nParams(), 3);
 
@@ -177,11 +177,11 @@ public:
     cellParametersAre(cell, 3.0, 3.0, 5.0, 90.0, 90.0, 120.0);
   }
 
-  void testCrystalSystemConstraintsTrigonal() {
+  void testLatticeSystemConstraintsRhombohedral() {
     PawleyParameterFunction fn;
     fn.initialize();
 
-    fn.setAttributeValue("CrystalSystem", "Trigonal");
+    fn.setAttributeValue("LatticeSystem", "Rhombohedral");
 
     TS_ASSERT_EQUALS(fn.nParams(), 3);
 
@@ -199,11 +199,11 @@ public:
     cellParametersAre(cell, 3.0, 3.0, 3.0, 101.0, 101.0, 101.0);
   }
 
-  void testCrystalSystemConstraintsOrthorhombic() {
+  void testLatticeSystemConstraintsOrthorhombic() {
     PawleyParameterFunction fn;
     fn.initialize();
 
-    fn.setAttributeValue("CrystalSystem", "Orthorhombic");
+    fn.setAttributeValue("LatticeSystem", "Orthorhombic");
 
     TS_ASSERT_EQUALS(fn.nParams(), 4);
 
@@ -222,11 +222,11 @@ public:
     cellParametersAre(cell, 3.0, 4.0, 5.0, 90.0, 90.0, 90.0);
   }
 
-  void testCrystalSystemConstraintsMonoclinic() {
+  void testLatticeSystemConstraintsMonoclinic() {
     PawleyParameterFunction fn;
     fn.initialize();
 
-    fn.setAttributeValue("CrystalSystem", "Monoclinic");
+    fn.setAttributeValue("LatticeSystem", "Monoclinic");
 
     TS_ASSERT_EQUALS(fn.nParams(), 5);
 
@@ -246,11 +246,11 @@ public:
     cellParametersAre(cell, 3.0, 4.0, 5.0, 90.0, 101.0, 90.0);
   }
 
-  void testCrystalSystemConstraintsTriclinic() {
+  void testLatticeSystemConstraintsTriclinic() {
     PawleyParameterFunction fn;
     fn.initialize();
 
-    fn.setAttributeValue("CrystalSystem", "Triclinic");
+    fn.setAttributeValue("LatticeSystem", "Triclinic");
 
     TS_ASSERT_EQUALS(fn.nParams(), 7);
 
@@ -275,7 +275,7 @@ public:
     PawleyParameterFunction fn;
     fn.initialize();
 
-    fn.setAttributeValue("CrystalSystem", "Triclinic");
+    fn.setAttributeValue("LatticeSystem", "Triclinic");
 
     UnitCell cell(3., 4., 5., 101., 111., 103.);
 
@@ -288,7 +288,7 @@ public:
     TS_ASSERT_EQUALS(fn.getParameter("Beta"), 111.0);
     TS_ASSERT_EQUALS(fn.getParameter("Gamma"), 103.0);
 
-    fn.setAttributeValue("CrystalSystem", "Cubic");
+    fn.setAttributeValue("LatticeSystem", "Cubic");
 
     cell.seta(5.43);
     TS_ASSERT_THROWS_NOTHING(fn.setParametersFromUnitCell(cell));
@@ -323,13 +323,13 @@ public:
     TS_ASSERT_EQUALS(fn.nParams(), 7);
   }
 
-  void testPawleyFunctionSetCrystalSystem() {
+  void testPawleyFunctionSetLatticeSystem() {
     PawleyFunction fn;
     fn.initialize();
 
     TS_ASSERT_EQUALS(fn.nParams(), 7);
 
-    fn.setCrystalSystem("Cubic");
+    fn.setLatticeSystem("Cubic");
 
     TS_ASSERT_EQUALS(fn.nParams(), 2);
   }
@@ -439,7 +439,7 @@ public:
 
     PawleyFunction_sptr pawleyFn = boost::make_shared<PawleyFunction>();
     pawleyFn->initialize();
-    pawleyFn->setCrystalSystem("Cubic");
+    pawleyFn->setLatticeSystem("Cubic");
     pawleyFn->addPeak(V3D(1, 1, 1), 0.0065, 35.0);
     pawleyFn->addPeak(V3D(2, 2, 0), 0.0045, 110.0);
     pawleyFn->setUnitCell("5.4295 5.4295 5.4295");
@@ -475,7 +475,7 @@ public:
 
     PawleyFunction_sptr pawleyFn = boost::make_shared<PawleyFunction>();
     pawleyFn->initialize();
-    pawleyFn->setCrystalSystem("Cubic");
+    pawleyFn->setLatticeSystem("Cubic");
     pawleyFn->addPeak(V3D(1, 1, 1), 0.0065, 35.0);
     pawleyFn->addPeak(V3D(2, 2, 0), 0.0045, 115.0);
     pawleyFn->addPeak(V3D(3, 1, 1), 0.0035, 115.0);
diff --git a/Framework/CurveFitting/test/LatticeFunctionTest.h b/Framework/CurveFitting/test/LatticeFunctionTest.h
index 577b9bfb7f1b573338a67b173e5ab33b57c6a06d..711c8588a7758d631487bf7cf02fc0ad8d01a0dd 100644
--- a/Framework/CurveFitting/test/LatticeFunctionTest.h
+++ b/Framework/CurveFitting/test/LatticeFunctionTest.h
@@ -27,22 +27,22 @@ public:
   }
   static void destroySuite(LatticeFunctionTest *suite) { delete suite; }
 
-  void testSetCrystalSystem() {
+  void testSetLatticeSystem() {
     LatticeFunction fn;
     fn.initialize();
 
-    TS_ASSERT_THROWS_NOTHING(fn.setCrystalSystem("Cubic"));
-    TS_ASSERT_THROWS_NOTHING(fn.setCrystalSystem("Tetragonal"));
-    TS_ASSERT_THROWS_NOTHING(fn.setCrystalSystem("triclinic"));
+    TS_ASSERT_THROWS_NOTHING(fn.setLatticeSystem("Cubic"));
+    TS_ASSERT_THROWS_NOTHING(fn.setLatticeSystem("Tetragonal"));
+    TS_ASSERT_THROWS_NOTHING(fn.setLatticeSystem("triclinic"));
 
-    TS_ASSERT_THROWS(fn.setCrystalSystem("DoesNotExist"),
+    TS_ASSERT_THROWS(fn.setLatticeSystem("DoesNotExist"),
                      std::invalid_argument);
 
-    fn.setCrystalSystem("Cubic");
+    fn.setLatticeSystem("Cubic");
     // a and ZeroShift
     TS_ASSERT_EQUALS(fn.nParams(), 2);
 
-    fn.setCrystalSystem("Hexagonal");
+    fn.setLatticeSystem("Hexagonal");
     // a, c and ZeroShift
     TS_ASSERT_EQUALS(fn.nParams(), 3);
 
@@ -100,7 +100,7 @@ public:
     fn.initialize();
 
     // Al2O3, from PoldiCreatePeaksFromCell system test.
-    fn.setCrystalSystem("Hexagonal");
+    fn.setLatticeSystem("Hexagonal");
     fn.setParameter("a", 4.7605);
     fn.setParameter("c", 12.9956);
 
@@ -138,7 +138,7 @@ public:
 
     IFunction_sptr fn =
         FunctionFactory::Instance().createFunction("LatticeFunction");
-    fn->setAttributeValue("CrystalSystem", "Cubic");
+    fn->setAttributeValue("LatticeSystem", "Cubic");
     fn->addTies("ZeroShift=0.0");
     fn->setParameter("a", 5);
 
diff --git a/Framework/SINQ/inc/MantidSINQ/PoldiFitPeaks2D.h b/Framework/SINQ/inc/MantidSINQ/PoldiFitPeaks2D.h
index 1a7c1005d68692eb07359cc90d0ad0731cadf8ed..44e22c88b05ac47ed2345d071902bb8bf4330984 100644
--- a/Framework/SINQ/inc/MantidSINQ/PoldiFitPeaks2D.h
+++ b/Framework/SINQ/inc/MantidSINQ/PoldiFitPeaks2D.h
@@ -105,12 +105,12 @@ protected:
   getFunctionPawley(std::string profileFunctionName,
                     const PoldiPeakCollection_sptr &peakCollection);
 
-  std::string getCrystalSystemFromPointGroup(
+  std::string getLatticeSystemFromPointGroup(
       const Geometry::PointGroup_sptr &pointGroup) const;
 
   std::string
   getRefinedStartingCell(const std::string &initialCell,
-                         const std::string &crystalSystem,
+                         const std::string &latticeSystem,
                          const PoldiPeakCollection_sptr &peakCollection);
 
   std::string getUserSpecifiedTies(const API::IFunction_sptr &poldiFn);
diff --git a/Framework/SINQ/src/PoldiFitPeaks2D.cpp b/Framework/SINQ/src/PoldiFitPeaks2D.cpp
index a2a1ed2ba2e2f36c30e493904c791591c41ea195..4da20abea08a71634ecedcaa74a59d80ac31c884 100644
--- a/Framework/SINQ/src/PoldiFitPeaks2D.cpp
+++ b/Framework/SINQ/src/PoldiFitPeaks2D.cpp
@@ -546,13 +546,13 @@ Poldi2DFunction_sptr PoldiFitPeaks2D::getFunctionPawley(
                                 "peaks do not have point group.");
   }
 
-  std::string crystalSystem = getCrystalSystemFromPointGroup(pointGroup);
-  pawleyFunction->setCrystalSystem(crystalSystem);
+  std::string latticeSystem = getLatticeSystemFromPointGroup(pointGroup);
+  pawleyFunction->setLatticeSystem(latticeSystem);
 
   UnitCell cell = peakCollection->unitCell();
   // Extract unit cell from peak collection
   pawleyFunction->setUnitCell(getRefinedStartingCell(
-      unitCellToStr(cell), crystalSystem, peakCollection));
+      unitCellToStr(cell), latticeSystem, peakCollection));
 
   IPeakFunction_sptr pFun = boost::dynamic_pointer_cast<IPeakFunction>(
       FunctionFactory::Instance().createFunction(profileFunctionName));
@@ -575,32 +575,21 @@ Poldi2DFunction_sptr PoldiFitPeaks2D::getFunctionPawley(
 }
 
 /**
- * Returns the crystal system for the specified point group
+ * Returns the lattice system for the specified point group
  *
- * This function simply uses Geometry::getCrystalSystemAsString(), except when
- * the crystal system is trigonal but the point group uses hexagonal axes. In
- * that case this function returns the string for PointGroup::Hexagonal.
+ * This function simply uses Geometry::getLatticeSystemAsString().
  *
  * @param pointGroup :: The point group for which to find the crystal system
  * @return The crystal system for the point group
  */
-std::string PoldiFitPeaks2D::getCrystalSystemFromPointGroup(
+std::string PoldiFitPeaks2D::getLatticeSystemFromPointGroup(
     const PointGroup_sptr &pointGroup) const {
   if (!pointGroup) {
     throw std::invalid_argument(
-        "Cannot return crystal system for null PointGroup.");
+        "Cannot return lattice system for null PointGroup.");
   }
 
-  PointGroup::CrystalSystem crystalSystem = pointGroup->crystalSystem();
-
-  if (crystalSystem == PointGroup::CrystalSystem::Trigonal) {
-    if (pointGroup->getCoordinateSystem() ==
-        Group::CoordinateSystem::Hexagonal) {
-      return getCrystalSystemAsString(PointGroup::CrystalSystem::Hexagonal);
-    }
-  }
-
-  return getCrystalSystemAsString(crystalSystem);
+  return Geometry::getLatticeSystemAsString(pointGroup->latticeSystem());
 }
 
 /**
@@ -618,7 +607,7 @@ std::string PoldiFitPeaks2D::getCrystalSystemFromPointGroup(
  * @return String for refined unit cell
  */
 std::string PoldiFitPeaks2D::getRefinedStartingCell(
-    const std::string &initialCell, const std::string &crystalSystem,
+    const std::string &initialCell, const std::string &latticeSystem,
     const PoldiPeakCollection_sptr &peakCollection) {
 
   Geometry::UnitCell cell = Geometry::strToUnitCell(initialCell);
@@ -627,7 +616,7 @@ std::string PoldiFitPeaks2D::getRefinedStartingCell(
       boost::dynamic_pointer_cast<ILatticeFunction>(
           FunctionFactory::Instance().createFunction("LatticeFunction"));
 
-  latticeFunction->setCrystalSystem(crystalSystem);
+  latticeFunction->setLatticeSystem(latticeSystem);
   latticeFunction->fix(latticeFunction->parameterIndex("ZeroShift"));
   latticeFunction->setUnitCell(cell);
 
diff --git a/Framework/SINQ/test/PoldiFitPeaks2DTest.h b/Framework/SINQ/test/PoldiFitPeaks2DTest.h
index a9f11eb2d9af4e130098bdbf47729f9625cfc4e6..e68a20098256548a7bd18ed07b10f07e867dd1f8 100644
--- a/Framework/SINQ/test/PoldiFitPeaks2DTest.h
+++ b/Framework/SINQ/test/PoldiFitPeaks2DTest.h
@@ -437,33 +437,34 @@ public:
     TestablePoldiFitPeaks2D alg;
 
     auto pgCubic = PointGroupFactory::Instance().createPointGroup("m-3m");
-    TS_ASSERT_EQUALS(alg.getCrystalSystemFromPointGroup(pgCubic), "Cubic");
+    TS_ASSERT_EQUALS(alg.getLatticeSystemFromPointGroup(pgCubic), "Cubic");
 
     auto pgTetra = PointGroupFactory::Instance().createPointGroup("4/mmm");
-    TS_ASSERT_EQUALS(alg.getCrystalSystemFromPointGroup(pgTetra), "Tetragonal");
+    TS_ASSERT_EQUALS(alg.getLatticeSystemFromPointGroup(pgTetra), "Tetragonal");
 
     auto pgOrtho = PointGroupFactory::Instance().createPointGroup("mmm");
-    TS_ASSERT_EQUALS(alg.getCrystalSystemFromPointGroup(pgOrtho),
+    TS_ASSERT_EQUALS(alg.getLatticeSystemFromPointGroup(pgOrtho),
                      "Orthorhombic");
 
     auto pgMono = PointGroupFactory::Instance().createPointGroup("2/m");
-    TS_ASSERT_EQUALS(alg.getCrystalSystemFromPointGroup(pgMono), "Monoclinic");
+    TS_ASSERT_EQUALS(alg.getLatticeSystemFromPointGroup(pgMono), "Monoclinic");
 
     auto pgTric = PointGroupFactory::Instance().createPointGroup("-1");
-    TS_ASSERT_EQUALS(alg.getCrystalSystemFromPointGroup(pgTric), "Triclinic");
+    TS_ASSERT_EQUALS(alg.getLatticeSystemFromPointGroup(pgTric), "Triclinic");
 
     auto pgHex = PointGroupFactory::Instance().createPointGroup("6/mmm");
-    TS_ASSERT_EQUALS(alg.getCrystalSystemFromPointGroup(pgHex), "Hexagonal");
+    TS_ASSERT_EQUALS(alg.getLatticeSystemFromPointGroup(pgHex), "Hexagonal");
 
     auto pgTrigRh = PointGroupFactory::Instance().createPointGroup("-3m r");
-    TS_ASSERT_EQUALS(alg.getCrystalSystemFromPointGroup(pgTrigRh), "Trigonal");
+    TS_ASSERT_EQUALS(alg.getLatticeSystemFromPointGroup(pgTrigRh),
+                     "Rhombohedral");
 
     auto pgTrigHex = PointGroupFactory::Instance().createPointGroup("-3m");
-    TS_ASSERT_EQUALS(alg.getCrystalSystemFromPointGroup(pgTrigHex),
+    TS_ASSERT_EQUALS(alg.getLatticeSystemFromPointGroup(pgTrigHex),
                      "Hexagonal");
 
     PointGroup_sptr invalid;
-    TS_ASSERT_THROWS(alg.getCrystalSystemFromPointGroup(invalid),
+    TS_ASSERT_THROWS(alg.getLatticeSystemFromPointGroup(invalid),
                      std::invalid_argument);
   }
 
diff --git a/Framework/SINQ/test/PoldiSpectrumPawleyFunctionTest.h b/Framework/SINQ/test/PoldiSpectrumPawleyFunctionTest.h
index df2a8c68069a5dede05606258509334db7cf2123..ef0bca3397ef7442304e21522c3ac4070c6e33c9 100644
--- a/Framework/SINQ/test/PoldiSpectrumPawleyFunctionTest.h
+++ b/Framework/SINQ/test/PoldiSpectrumPawleyFunctionTest.h
@@ -30,7 +30,7 @@ public:
   MOCK_CONST_METHOD2(function, void(const FunctionDomain &, FunctionValues &));
 
   // IPawleyFunction interface
-  MOCK_METHOD1(setCrystalSystem, void(const std::string &));
+  MOCK_METHOD1(setLatticeSystem, void(const std::string &));
   MOCK_METHOD1(setProfileFunction, void(const std::string &));
   MOCK_METHOD1(setUnitCell, void(const std::string &));
 
@@ -132,7 +132,7 @@ public:
 
     IPawleyFunction_sptr pFn = fn.getPawleyFunction();
     pFn->setProfileFunction("Gaussian");
-    pFn->setCrystalSystem("Cubic");
+    pFn->setLatticeSystem("Cubic");
     // Only the first figure matters, because of cubic
     pFn->setUnitCell("5.43122617238802162554 5.431 5.431 90 90 90");
     pFn->addPeak(V3D(4, 2, 2), 0.0027446316797104233, 679.59369981039407842726);