diff --git a/vlsisapd/doc/doxyfile b/vlsisapd/doc/doxyfile
index 1b4af417..0effd22c 100644
--- a/vlsisapd/doc/doxyfile
+++ b/vlsisapd/doc/doxyfile
@@ -568,7 +568,7 @@ WARN_LOGFILE           =
 # directories like "/usr/src/myproject". Separate the files or directories
 # with spaces.
 
-INPUT                  = "." "../src/cif" "../src/agds" "../src/dtr" "../src/openChams ../src/spice"
+INPUT                  = "." "../src/cif" "../src/agds" "../src/dtr" "../src/openChams" "../src/spice"
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding, which is
diff --git a/vlsisapd/doc/spice/Circuit.dox b/vlsisapd/doc/spice/Circuit.dox
new file mode 100644
index 00000000..ab93c148
--- /dev/null
+++ b/vlsisapd/doc/spice/Circuit.dox
@@ -0,0 +1,116 @@
+// -*- C++ -*-
+
+namespace SPICE {
+/*! \class Circuit
+ *
+ *  This class is the root class which means that having this object in hand allows to get/set any information contained in the Spice file parsed/drived.
+ */
+
+/*! \fn Circuit::Circuit()
+ *   \brief creates a new circuit
+ */
+
+/*! \fn inline std::string Circuit::getTitle()
+ *   \brief returns the title of the circuit.
+ */
+
+/*! \fn inline const std::vector<std::string>& Circuit::getIncludes()
+ *   \brief returns the includes of the circuit.
+ */
+
+/*! \fn inline const std::vector<std::pair<std::string, std::string> >& Circuit::getLibraries()
+ *   \brief returns the libraries of the circuit.
+ */
+
+/*! \fn inline const std::map<std::string, std::string>& Circuit::getOptions()
+ *   \brief returns the options of the circuit.
+ */
+
+/*! \fn inline const std::map<std::string, std::string>& Circuit::getParameters()
+ *   \brief returns the parameters of the circuit.
+ */
+
+/*! \fn inline const std::vector<Subckt*>& Circuit::getSubckts()
+ *   \brief returns the subckts of the circuit.
+ */
+
+/*! \fn inline const std::vector<Instance*>& Circuit::getInstances()
+ *   \brief returns the instances of the circuit.
+ */
+
+/*! \fn inline const std::vector<Source*>& Circuit::getSources()
+ *   \brief returns the sources of the circuit.
+ */
+
+/*! \fn inline void Circuit::setTitle(std::string title)
+ *   \brief sets the title of the circuit.
+ *
+ *   \param title the title of the circuit
+ */
+
+/*! \fn inline void Circuit::addInclude(std::string include)
+ *   \brief adds an include to the circuit.
+ *
+ *   \param include the include to add.
+ */
+
+/*! \fn inline void Circuit::addLibrary(std::string file, std::string type = "")
+ *   \brief adds a library to the circuit.
+ *
+ *   \param file the file describing the library to add.
+ *   \param type the type if several exist in the same file (this argument is optionnal)
+ */
+
+/*! \fn inline void Circuit::addInstance(Instance* instance)
+ *   \brief adds an instance to the circuit.
+ *
+ *   \param instance the instance to add.
+ */
+
+/*! \fn inline void Circuit::addSource(Source* source)
+ *   \brief adds a source to the circuit.
+ *
+ *   \param source the source to add.
+ */
+
+/*! \fn void Circuit::addOption(std::string name, std::string value)
+ *   \brief adds an option to the circuit.
+ *
+ *   \param name  the name of the option.
+ *   \param value the value of the option.
+ *
+ *   \note The value is represented as a std::string to keep the optionnal unity.
+ */
+
+/*! \fn void Circuit::addParameter(std::string name, std::string value)
+ *   \brief adds a parameter to the circuit.
+ *
+ *   \param name  the name of the parameter.
+ *   \param value the value of the parameter.
+ *
+ *   \note The value is represented as a std::string to keep the optionnal unity.
+ */
+
+/*! \fn Subckt* Circuit::addSubckt(std::string name)
+ *   \brief adds a subcircuit to the circuit.
+ *
+ *   \param name the name of the subckt.
+ *
+ *   \return the newly created Subckt.
+ */
+
+/*! \fn void Circuit::writeToFile(const std::string filePath)
+ *   \brief writes the database to file.
+ *
+ *   \param filePath the destination file.
+ */
+
+/*! \fn static Circuit* Circuit::readFromFile(const std::string filePath)
+ *   \brief creates and returns a Circuit object based on a database source file.
+ *
+ *   \param filePath the source file name.
+ *
+ *   \return the newly created Circuit.
+ */
+ 
+}
diff --git a/vlsisapd/doc/spice/Exception.dox b/vlsisapd/doc/spice/Exception.dox
new file mode 100644
index 00000000..8fb62031
--- /dev/null
+++ b/vlsisapd/doc/spice/Exception.dox
@@ -0,0 +1,9 @@
+// -*- C++ -*-
+
+namespace SPICE {
+/*! \class SpiceException
+ *
+ *  This class describes the exceptions throwed by the Spice library in case of errors.
+ */
+
+}
diff --git a/vlsisapd/doc/spice/Instance.dox b/vlsisapd/doc/spice/Instance.dox
new file mode 100644
index 00000000..ab8a47c4
--- /dev/null
+++ b/vlsisapd/doc/spice/Instance.dox
@@ -0,0 +1,53 @@
+// -*- C++ -*-
+
+namespace SPICE {
+/*! \class Instance
+ *
+ *  This class describes an instance of the global circuit.
+ *  It is the base class of SPICE::Capacitor, SPICE::Mosfet and SPICE::Resistor.
+ */
+
+/*! \fn Instance::Instance(std::string name, std::string model)
+ *   \brief creates a new instance.
+ *
+ *   \param name  the name of the instance.
+ *   \param model the model of the instance.
+ */
+
+/*! \fn inline std::string Instance::getName()
+ *   \brief returns the name of the instance.
+ */
+
+/*! \fn inline std::string Instance::getModel()
+ *   \brief returns the model of the instance.
+ */
+
+/*! \fn inline const std::vector<std::string>& Instance::getConnectors()
+ *   \brief returns the connectors of the instance.
+ */
+
+/*! \fn inline const std::map<std::string, std::string>& Instance::getParameters()
+ *   \brief returns the parameters of the instance.
+ */
+
+/*! \fn std::string Instance::getParameterValue(std::string name)
+ *   \brief returns the value (as string) of a parameter of the instance.
+ *
+ *   \param name the name of the parameter from which to get value.
+ */
+
+/*! \fn inline void Instance::addConnector(std::string connector)
+ *   \brief adds a connector to the instance.
+ *
+ *   \param connector the connector to add.
+ */
+
+/*! \fn void Instance::addParameter(std::string name, std::string value)
+ *   \brief add a parameter to the instance.
+ *
+ *   \param name  the name of the parameter.
+ *   \param value the value of the parameter.
+ */
+
+}
+
diff --git a/vlsisapd/doc/spice/Instances.dox b/vlsisapd/doc/spice/Instances.dox
new file mode 100644
index 00000000..288212c7
--- /dev/null
+++ b/vlsisapd/doc/spice/Instances.dox
@@ -0,0 +1,99 @@
+// -*- C++ -*-
+
+namespace SPICE {
+/*! \class Capacitor
+ *
+ *  This class describes a capacitor which is a specialized instance which has a positive and a negative connector and a value.
+ */
+
+/*! \fn Capacitor::Capacitor(std::string name, std::string pos, std::string neg, std::string value)
+ *   \brief creates a new capacitor.
+ *
+ *   \param name  the name of the capacitor.
+ *   \param pos   the positive connector of the capacitor.
+ *   \param neg   the negative connector of the capacitor.
+ *   \param value the value of the capacitor.
+ */
+
+/*! \fn inline std::string Capacitor::getPositive()
+ *   \brief returns the positive connector of the capacitor.
+ */
+
+/*! \fn inline std::string Capacitor::getNegative()
+ *   \brief returns the negative connector of the capacitor.
+ */
+
+/*! \fn inline std::string Capacitor::getValue()
+ *   \brief returns the value of the capacitor.
+ */
+
+
+/*! \class Resistor
+ *
+ *  This class describes a resistor which is a specialized instance which has two connectors and a value.
+ */
+
+/*! \fn Resistor::Resistor(std::string name, std::string first, std::string second, std::string value)
+ *   \brief creates a new resistor.
+ *
+ *   \param name   the name of the resistor.
+ *   \param first  the first connector of the resistor.
+ *   \param second the second connector of the resistor.
+ *   \param value  the value of the resistor.
+ */
+
+/*! \fn inline std::string Resistor::getFirst()
+ *   \brief returns the first connector of the resistor.
+ */
+
+/*! \fn inline std::string Resistor::getSecond()
+ *   \brief returns the second connector of the resistor.
+ */
+
+/*! \fn inline std::string Resistor::getValue()
+ *   \brief returns the value of the resistor.
+ */
+
+
+/*! \class Mosfet
+ *
+ *  This class describes a mosfet transistor which is a specialized instance which has four connectors (grid, drain, source and bulk).
+ */
+
+/*! \fn Mosfet::Mosfet(std::string name, std::string drain, std::string grid, std::string source, std::string bulk, std::string model)
+ *   \brief creates a new mosfet transistor.
+ *
+ *   \param name   the name of the transistor.
+ *   \param drain  the drain connector of the transistor.
+ *   \param grid   the grid connector of the transistor.
+ *   \param source the source connector of the transistor.
+ *   \param bulk   the bulk connector of the transistor.
+ *   \param model  the model of the transistor.
+ */
+
+/*! \fn inline std::string Mosfet::getName()
+ *   \brief returns the name of the transistor.
+ */
+
+/*! \fn inline std::string Mosfet::getDrain()
+ *   \brief returns the drain connector of the transistor.
+ */
+
+/*! \fn inline std::string Mosfet::getGrid()
+ *   \brief returns the grid connector of the transistor.
+ */
+
+/*! \fn inline std::string Mosfet::getSource()
+ *   \brief returns the source connector of the transistor.
+ */
+
+/*! \fn inline std::string Mosfet::getBulk()
+ *   \brief returns the bulk connector of the transistor.
+ */
+
+/*! \fn inline std::string Mosfet::getModel()
+ *   \brief returns the model of the transistor.
+ */
+
+}
+
diff --git a/vlsisapd/doc/spice/Sources.dox b/vlsisapd/doc/spice/Sources.dox
new file mode 100644
index 00000000..4da2ad81
--- /dev/null
+++ b/vlsisapd/doc/spice/Sources.dox
@@ -0,0 +1,64 @@
+// -*- C++ -*-
+
+namespace SPICE {
+/*! \class Source
+ *
+ *  This abstract class is a base class for SPICE::Current and SPICE::Voltage sources.
+ */
+
+/*! \fn Source::Source(std::string name, std::string pos, std::string neg, std::string value)
+ *   \brief creates a new source.
+ *
+ *   \param name  the name of the source.
+ *   \param pos   the positive connector of the source.
+ *   \param neg   the negative connector of the source.
+ *   \param value the value of the source.
+ */
+
+/*! \fn inline std::string Source::getName()
+ *   \brief returns the name of the source.
+ */
+
+/*! \fn inline std::string Source::getPositive()
+ *   \brief returns the positive connector of the source.
+ */
+
+/*! \fn inline std::string Source::getNegative()
+ *   \brief returns the negative connector of the source.
+ */
+
+/*! \fn inline std::string Source::getValue()
+ *   \brief returns the value of the source.
+ */
+
+
+/*! \class Current
+ *
+ *  This class describes a current source.
+ */
+
+/*! \fn Current::Current(std::string name, std::string pos, std::string neg, std::string value)
+ *   \brief creates a new current source.
+ *
+ *   \param name  the name of the source.
+ *   \param pos   the positive connector of the source.
+ *   \param neg   the negative connector of the source.
+ *   \param value the value of the source.
+ */
+
+
+/*! \class Voltage
+ *
+ *  This class describes a voltage source.
+ */
+
+/*! \fn Voltage::Voltage(std::string name, std::string pos, std::string neg, std::string value)
+ *   \brief creates a new voltage source.
+ *
+ *   \param name  the name of the source.
+ *   \param pos   the positive connector of the source.
+ *   \param neg   the negative connector of the source.
+ *   \param value the value of the source.
+ */
+}
+
diff --git a/vlsisapd/doc/spice/Subckt.dox b/vlsisapd/doc/spice/Subckt.dox
new file mode 100644
index 00000000..ac36e68c
--- /dev/null
+++ b/vlsisapd/doc/spice/Subckt.dox
@@ -0,0 +1,66 @@
+// -*- C++ -*-
+
+namespace SPICE {
+/*! \class Subckt
+ *
+ *  This class describes a subckt of the global circuit.
+ */
+
+/*! \fn Subckt::Subckt(std::string name)
+ *   \brief creates a new subckt.
+ *
+ *   \param name the name of the subckt
+ */
+
+/*! \fn inline const std::string Subckt::getName()
+ *   \brief returns the name of the subckt.
+ */
+
+/*! \fn inline const std::vector<std::string>& Subckt::getInterfaces()
+ *   \brief returns the interfaces of the subckt.
+ */
+
+/*! \fn inline const std::vector<Instance*>& Subckt::getInstances()
+ *   \brief returns the instances of the subckt.
+ */
+
+/*! \fn inline const std::map<std::string, std::string>& Subckt::getParameters()
+ *   \brief returns the parameters of the subckt.
+ */
+
+/*! \fn inline const std::vector<std::string>& Subckt::getComments()
+ *   \brief returns the comments of the subckt.
+ *
+ *   \note comments of a subckt are the first lines of the subckt to describe the interfaces of the subckt.
+ */
+
+
+/*! \fn inline void Subckt::addInterface(std::string name)
+ *   \brief adds an interface to the subckt.
+ *
+ *   \param name the name of the interface to add.
+ */
+
+/*! \fn inline void Subckt::addInstance (Instance* instance)
+ *   \brief adds an instance to the subckt.
+ *
+ *   \param instance the instance to add.
+ */
+
+/*! \fn inline void Subckt::addComment(std::string comment)
+ *   \brief adds a comment to the subckt.
+ *
+ *   \param comment the comment to add.
+ *
+ *   \note comments of a subckt are the first lines of the subckt to describe the interfaces of the subckt.
+ */
+
+/*! \fn void Subckt::addParameter(std::string name, std::string value)
+ *   \brief adds a parameter to the subckt.
+ *
+ *   \param name  the name of the parameter to add.
+ *   \param value the value of the parameter to add.
+ */
+
+}
+