diff --git a/library/persistence/implementation/common/database/database_connection_odbc.e b/library/persistence/implementation/common/database/database_connection_odbc.e
index 3e7ea74..cc03ea5 100644
--- a/library/persistence/implementation/common/database/database_connection_odbc.e
+++ b/library/persistence/implementation/common/database/database_connection_odbc.e
@@ -1,7 +1,7 @@
 note
 	description: "Object that handle a database connection for ODBC"
-	date: "$Date: 2014-08-20 15:21:15 -0300 (mi., 20 ago. 2014) $"
-	revision: "$Revision: 95678 $"
+	date: "$Date: 2014-11-13 12:23:47 -0300 (ju., 13 nov. 2014) $"
+	revision: "$Revision: 96085 $"
 
 class
 	DATABASE_CONNECTION_ODBC
@@ -13,6 +13,8 @@ inherit
 			db_application
 		end
 
+	SHARED_LOGGER
+
 create
 	make, make_common, make_basic, login_with_connection_string
 
@@ -24,7 +26,7 @@ feature -- Initialization
 			l_retried: BOOLEAN
 		do
 			create db_application.login (username, password)
-
+			create database_error_handler.make
 			if not l_retried then
 				db_application.set_hostname (hostname)
 				db_application.set_data_source (database_name)
@@ -34,14 +36,13 @@ feature -- Initialization
 				if keep_connection then
 					connect
 				end
-				set_successful
 			else
 				create db_control.make
 			end
 		rescue
 			create db_control.make
-			set_last_error_from_exception ("Connection execution")
-			log.write_critical (generator + ".make_common:" + last_error_message)
+--			set_last_error_from_exception ("Connection execution")
+--			log.write_critical (generator + ".make_common:" + last_error_message)
 			if is_connected then
 				disconnect
 			end
@@ -56,7 +57,7 @@ feature -- Initialization
 			l_retried: BOOLEAN
 		do
 			create db_application.login (username, password)
-
+			create database_error_handler.make
 			if not l_retried then
 				db_application.set_hostname (hostname)
 				db_application.set_data_source (a_database_name)
@@ -66,14 +67,13 @@ feature -- Initialization
 				if keep_connection then
 					connect
 				end
-				set_successful
 			else
 				create db_control.make
 			end
 		rescue
 			create db_control.make
-			set_last_error_from_exception ("Connection execution")
-			log.write_critical (generator + ".make_common:" + last_error_message)
+--			set_last_error_from_exception ("Connection execution")
+--			log.write_critical (generator + ".make_common:" + last_error_message)
 			if is_connected then
 				disconnect
 			end
@@ -88,6 +88,7 @@ feature -- Initialization
 			-- `database_name' to `a_database_name'
 			-- `connection' to `a_connection'
 		do
+			create database_error_handler.make
 			create db_application.login (a_username, a_password)
 			db_application.set_hostname (a_hostname)
 			db_application.set_data_source (a_database_name)
@@ -104,6 +105,7 @@ feature -- Initialization
 		do
 			log.write_debug (generator +".login_with_connection_string")
 			create db_application.login_with_connection_string (a_string)
+			create database_error_handler.make
 			db_application.set_base
 			create db_control.make
 			log.write_debug (generator +".login_with_connection_string, is_keep_connection? "+ is_keep_connection.out )
diff --git a/library/persistence/implementation/sqlite/persistence_sqlite-safe.ecf b/library/persistence/implementation/sqlite/persistence_sqlite-safe.ecf
index 9e6d263..10aa724 100644
--- a/library/persistence/implementation/sqlite/persistence_sqlite-safe.ecf
+++ b/library/persistence/implementation/sqlite/persistence_sqlite-safe.ecf
@@ -13,7 +13,6 @@
 		<library name="layout" location="..\..\..\layout\layout-safe.ecf"/>
 		<library name="model" location="..\..\..\model\cms_model-safe.ecf"/>
 		<library name="logging" location="$ISE_LIBRARY\library\runtime\logging\logging-safe.ecf"/>
-		<library name="mysql" location="$ISE_LIBRARY\library\store\dbms\rdbms\mysql\mysql-safe.ecf"/>
 		<library name="odbc" location="$ISE_LIBRARY\library\store\dbms\rdbms\odbc\odbc-safe.ecf"/>
 		<library name="store" location="$ISE_LIBRARY\library\store\store-safe.ecf" readonly="false"/>
 		<library name="thread" location="$ISE_LIBRARY\library\thread\thread-safe.ecf"/>
diff --git a/library/persistence/implementation/sqlite/src/cms_storage_sqlite.e b/library/persistence/implementation/sqlite/src/cms_storage_sqlite.e
index 849685e..f463110 100644
--- a/library/persistence/implementation/sqlite/src/cms_storage_sqlite.e
+++ b/library/persistence/implementation/sqlite/src/cms_storage_sqlite.e
@@ -1,7 +1,7 @@
 note
 	description: "Summary description for {CMS_STORAGE_MYSQL}."
-	date: "$Date$"
-	revision: "$Revision$"
+	date: "$Date: 2014-11-13 12:23:47 -0300 (ju., 13 nov. 2014) $"
+	revision: "$Revision: 96085 $"
 
 class
 	CMS_STORAGE_SQLITE
@@ -24,8 +24,7 @@ feature {NONE} -- Initialization
 			log.write_information (generator+".make_with_database is database connected?  "+ a_connection.is_connected.out )
 			create node_provider.make (a_connection)
 			create user_provider.make (a_connection)
-			post_node_provider_execution
-			post_user_provider_execution
+			create error_handler.make
 		end
 
 
@@ -35,7 +34,7 @@ feature -- Access: user
 			-- Has any user?
 		do
 			Result := user_provider.has_user
-			post_user_provider_execution
+
 		end
 
 
@@ -48,19 +47,19 @@ feature -- Access: user
 	user_by_id (a_id: like {CMS_USER}.id): detachable CMS_USER
 		do
 			Result := user_provider.user (a_id)
-			post_user_provider_execution
+
 		end
 
 	user_by_name (a_name: like {CMS_USER}.name): detachable CMS_USER
 		do
 			Result := user_provider.user_by_name (a_name)
-			post_user_provider_execution
+
 		end
 
 	user_by_email (a_email: like {CMS_USER}.email): detachable CMS_USER
 		do
 			Result := user_provider.user_by_email (a_email)
-			post_user_provider_execution
+
 		end
 
 	is_valid_credential (l_auth_login, l_auth_password: READABLE_STRING_32): BOOLEAN
@@ -82,7 +81,7 @@ feature -- Access: user
 					log.write_information (generator + ".login_valid User:" + l_auth_login + "does not exist" )
 				end
 			end
-			post_user_provider_execution
+
 		end
 
 feature -- Change: user
@@ -149,7 +148,7 @@ feature -- Access: node
 			across node_provider.nodes as c loop
 				Result.force (c.item)
 			end
-			post_node_provider_execution
+
 		end
 
 	recent_nodes (a_lower: INTEGER; a_count: INTEGER): LIST [CMS_NODE]
@@ -159,14 +158,14 @@ feature -- Access: node
 			across node_provider.recent_nodes (a_lower,a_count) as c loop
 				Result.force (c.item)
 			end
-			post_node_provider_execution
+
 		end
 
 	node (a_id: INTEGER_64): detachable CMS_NODE
 			--
 		do
 			Result :=  node_provider.node (a_id)
-			post_node_provider_execution
+
 		end
 
 
@@ -176,37 +175,37 @@ feature -- Node
 			-- Add a new node
 		do
 			node_provider.new_node (a_node)
-			post_node_provider_execution
+
 		end
 
 	delete_node (a_id: INTEGER_64)
 		do
 			node_provider.delete_node (a_id)
-			post_node_provider_execution
+
 		end
 
 	update_node (a_id: like {CMS_USER}.id; a_node: CMS_NODE)
 		do
 			node_provider.update_node (a_node)
-			post_node_provider_execution
+
 		end
 
 	update_node_title (a_id: like {CMS_USER}.id; a_node_id: like {CMS_NODE}.id; a_title: READABLE_STRING_32)
 		do
 			node_provider.update_node_title (a_id, a_title)
-			post_node_provider_execution
+
 		end
 
 	update_node_summary (a_id: like {CMS_USER}.id; a_node_id: like {CMS_NODE}.id; a_summary: READABLE_STRING_32)
 		do
 			node_provider.update_node_summary (a_id, a_summary)
-			post_node_provider_execution
+
 		end
 
 	update_node_content (a_id: like {CMS_USER}.id; a_node_id: like {CMS_NODE}.id; a_content: READABLE_STRING_32)
 		do
 			node_provider.update_node_content (a_id, a_content)
-			post_node_provider_execution
+
 		end
 
 
@@ -239,29 +238,7 @@ feature -- User
 			end
 		end
 
-feature {NONE} -- Post process
-
-	post_node_provider_execution
-		do
-			if node_provider.successful then
-				set_successful
-			else
-				if attached node_provider.last_error then
-					set_last_error_from_handler (node_provider.last_error)
-				end
-			end
-		end
-
-	post_user_provider_execution
-		do
-			if user_provider.successful then
-				set_successful
-			else
-				if attached user_provider.last_error then
-					set_last_error_from_handler (user_provider.last_error)
-				end
-			end
-		end
+feature {NONE} -- Implementation
 
 	node_provider: NODE_DATA_PROVIDER
 			-- Node Data provider.
diff --git a/library/persistence/implementation/sqlite/src/database/database_connection_mysql.e b/library/persistence/implementation/sqlite/src/database/database_connection_mysql.e
deleted file mode 100644
index bc5f890..0000000
--- a/library/persistence/implementation/sqlite/src/database/database_connection_mysql.e
+++ /dev/null
@@ -1,145 +0,0 @@
-note
-	description: "Object that handle a database connection for ODBC"
-	date: "$Date: 2014-08-20 15:21:15 -0300 (mi., 20 ago. 2014) $"
-	revision: "$Revision: 95678 $"
-
-class
-	DATABASE_CONNECTION_MYSQL
-
-inherit
-
-	DATABASE_CONNECTION
-		redefine
-			db_application
-		end
-
-create
-	make, make_common, make_basic, login_with_connection_string, login_with_schema
-
-feature -- Initialization
-
-	make_common
-			-- Create a database handler for MYSQL with common settings.
-		local
-			l_retried: BOOLEAN
-		do
-			create db_application.login (username, password)
-
-			if not l_retried then
-				db_application.set_hostname (hostname)
-				db_application.set_data_source (database_name)
-				db_application.set_base
-				create db_control.make
-				keep_connection := is_keep_connection
-				if keep_connection then
-					connect
-				end
-				set_successful
-			else
-				create db_control.make
-			end
-		rescue
-			create db_control.make
-			set_last_error_from_exception ("Connection execution")
-			log.write_critical (generator + ".make_common:" + last_error_message)
-			if is_connected then
-				disconnect
-			end
-			l_retried := True
-			retry
-		end
-
-	make_basic (a_database_name: STRING)
-			-- Create a database handler and
-			-- set database_name to `a_database_name'.
-		local
-			l_retried: BOOLEAN
-		do
-			create db_application.login (username, password)
-
-			if not l_retried then
-				db_application.set_hostname (hostname)
-				db_application.set_data_source (a_database_name)
-				db_application.set_base
-				create db_control.make
-				keep_connection := is_keep_connection
-				if keep_connection then
-					connect
-				end
-				set_successful
-			else
-				create db_control.make
-			end
-		rescue
-			create db_control.make
-			set_last_error_from_exception ("Connection execution")
-			log.write_critical (generator + ".make_common:" + last_error_message)
-			if is_connected then
-				disconnect
-			end
-			l_retried := True
-			retry
-		end
-
-	make (a_username: STRING; a_password: STRING; a_hostname: STRING; a_database_name: STRING; connection: BOOLEAN)
-
-			-- Create a database handler for ODBC and set `username' to `a_username',
-			-- `password' to `a_password'
-			-- `database_name' to `a_database_name'
-			-- `connection' to `a_connection'
-		do
-			create db_application.login (a_username, a_password)
-			db_application.set_hostname (a_hostname)
-			db_application.set_data_source (a_database_name)
-			db_application.set_base
-			create db_control.make
-			keep_connection := connection
-			if keep_connection then
-				connect
-			end
-		end
-
-	login_with_connection_string (a_string: STRING)
-			-- Login with `a_connection_string'and immediately connect to database.
-		local
-			l_string: LIST[STRING]
-			l_server: STRING
-			l_port: STRING
-			l_schema: STRING
-			l_user: STRING
-			l_password: STRING
-		do
-			l_string := a_string.split (';')
-			l_server := l_string.at (2).split ('=').at (2)
-			l_port := l_string.at (3).split ('=').at (2)
-			l_schema := l_string.at (4).split ('=').at (2)
-			l_user := l_string.at (5).split ('=').at (2)
-			l_password := l_string.at (6).split ('=').at (2)
-
-			create db_application
-			db_application.set_application (l_schema)
-			db_application.set_hostname (l_server + ":" + l_port)
-			db_application.login_and_connect (l_user, l_password)
-			db_application.set_base
-			create db_control.make
-			keep_connection := is_keep_connection
-
-		end
-
-	login_with_schema (a_schema: STRING; a_username: STRING; a_password: STRING)
-			-- Login with `a_connection_string'and immediately connect to database.
-		do
-			create db_application
-			db_application.set_application (a_schema)
-			db_application.login_and_connect (a_username, a_password)
-			db_application.set_base
-			create db_control.make
-			keep_connection := is_keep_connection
-		end
-
-feature -- Databse Connection
-
-	db_application: DATABASE_APPL [MYSQL]
-			-- Database application.
-
-end
diff --git a/library/persistence/implementation/sqlite/src/provider/node_data_provider.e b/library/persistence/implementation/sqlite/src/provider/node_data_provider.e
index eef4756..25c4606 100644
--- a/library/persistence/implementation/sqlite/src/provider/node_data_provider.e
+++ b/library/persistence/implementation/sqlite/src/provider/node_data_provider.e
@@ -1,7 +1,7 @@
 note
 	description: "Database access for node uses cases."
-	date: "$Date: 2014-08-20 15:21:15 -0300 (mi., 20 ago. 2014) $"
-	revision: "$Revision: 95678 $"
+	date: "$Date: 2014-11-13 12:23:47 -0300 (ju., 13 nov. 2014) $"
+	revision: "$Revision: 96085 $"
 
 class
 	NODE_DATA_PROVIDER
@@ -23,7 +23,7 @@ feature -- Initialization
 			-- Create a data provider.
 		do
 			create {DATABASE_HANDLER_IMPL} db_handler.make (a_connection)
-			post_execution
+
 		end
 
 	db_handler: DATABASE_HANDLER
@@ -34,7 +34,7 @@ feature -- Status Report
 	is_successful: BOOLEAN
 			-- Is the last execution sucessful?
 		do
-			Result := db_handler.successful
+			Result := not db_handler.has_error
 		end
 
 feature -- Access
@@ -49,7 +49,7 @@ feature -- Access
 			db_handler.set_query (create {DATABASE_QUERY}.data_reader (Select_nodes, l_parameters))
 			db_handler.execute_query
 			create Result.make (db_handler, agent fetch_node)
-			post_execution
+
 		end
 
 	recent_nodes (a_lower, a_rows: INTEGER): DATABASE_ITERATION_CURSOR [CMS_NODE]
@@ -66,7 +66,7 @@ feature -- Access
 			db_handler.set_query (create {DATABASE_QUERY}.data_reader (l_query, l_parameters))
 			db_handler.execute_query
 			create Result.make (db_handler, agent fetch_node)
-			post_execution
+
 		end
 
 	node (a_id: INTEGER_64): detachable CMS_NODE
@@ -82,7 +82,7 @@ feature -- Access
 			if db_handler.count = 1 then
 				Result := fetch_node
 			end
-			post_execution
+
 		end
 
 	count: INTEGER
@@ -97,7 +97,7 @@ feature -- Access
 			if db_handler.count = 1 then
 				Result := db_handler.read_integer_32 (1)
 			end
-			post_execution
+
 		end
 
 feature -- Basic operations
@@ -117,7 +117,7 @@ feature -- Basic operations
 			l_parameters.put (a_node.modification_date, "modification_date")
 			db_handler.set_query (create {DATABASE_QUERY}.data_reader (sql_insert_node, l_parameters))
 			db_handler.execute_change
-			post_execution
+
 		end
 
 	update_node_title (a_id: INTEGER_64; a_title: READABLE_STRING_32)
@@ -132,7 +132,7 @@ feature -- Basic operations
 			l_parameters.put (a_id, "id")
 			db_handler.set_query (create {DATABASE_QUERY}.data_reader (sql_update_node_title, l_parameters))
 			db_handler.execute_change
-			post_execution
+
 		end
 
 	update_node_summary (a_id: INTEGER_64; a_summary: READABLE_STRING_32)
@@ -147,7 +147,7 @@ feature -- Basic operations
 			l_parameters.put (a_id, "id")
 			db_handler.set_query (create {DATABASE_QUERY}.data_reader (sql_update_node_summary, l_parameters))
 			db_handler.execute_change
-			post_execution
+
 		end
 
 	update_node_content (a_id: INTEGER_64; a_content: READABLE_STRING_32)
@@ -162,7 +162,7 @@ feature -- Basic operations
 			l_parameters.put (a_id, "id")
 			db_handler.set_query (create {DATABASE_QUERY}.data_reader (sql_update_node_content, l_parameters))
 			db_handler.execute_change
-			post_execution
+
 		end
 
 	update_node (a_node: CMS_NODE)
@@ -181,7 +181,7 @@ feature -- Basic operations
 			l_parameters.put (a_node.id, "id")
 			db_handler.set_query (create {DATABASE_QUERY}.data_reader (sql_update_node, l_parameters))
 			db_handler.execute_change
-			post_execution
+
 		end
 
 	delete_node (a_id: INTEGER_64;)
@@ -194,7 +194,6 @@ feature -- Basic operations
 			l_parameters.put (a_id, "id")
 			db_handler.set_query (create {DATABASE_QUERY}.data_reader (sql_delete_node, l_parameters))
 			db_handler.execute_change
-			post_execution
 		end
 
 feature -- Connection
@@ -272,18 +271,5 @@ feature -- New Object
 			end
 		end
 
-feature {NONE} -- Implementation
-
-	post_execution
-			-- Post database execution.
-		do
-			if db_handler.successful then
-				set_successful
-			else
-				if attached db_handler.last_error then
-					set_last_error_from_handler (db_handler.last_error)
-				end
-			end
-		end
 
 end
diff --git a/library/persistence/implementation/sqlite/src/provider/user_data_provider.e b/library/persistence/implementation/sqlite/src/provider/user_data_provider.e
index e603c05..60fd235 100644
--- a/library/persistence/implementation/sqlite/src/provider/user_data_provider.e
+++ b/library/persistence/implementation/sqlite/src/provider/user_data_provider.e
@@ -1,7 +1,7 @@
 note
 	description: "Summary description for {USER_DATA_PROVIDER}."
-	date: "$Date$"
-	revision: "$Revision$"
+	date: "$Date: 2014-11-13 12:23:47 -0300 (ju., 13 nov. 2014) $"
+	revision: "$Revision: 96085 $"
 
 class
 	USER_DATA_PROVIDER
@@ -23,7 +23,7 @@ feature -- Initialization
 			-- Create a data provider.
 		do
 			create {DATABASE_HANDLER_IMPL} db_handler.make (a_connection)
-			post_execution
+
 		end
 
 	db_handler: DATABASE_HANDLER
@@ -34,7 +34,7 @@ feature -- Status Report
 	is_successful: BOOLEAN
 			-- Is the last execution sucessful?
 		do
-			Result := db_handler.successful
+			Result := not db_handler.has_error
 		end
 
 	has_user: BOOLEAN
@@ -64,7 +64,7 @@ feature -- Basic Operations
 			l_parameters.put (a_email,"email")
 			db_handler.set_query (create {DATABASE_QUERY}.data_reader (sql_insert_user, l_parameters))
 			db_handler.execute_change
-			post_execution
+
 		end
 
 	user (a_id: INTEGER_64): detachable CMS_USER
@@ -80,7 +80,7 @@ feature -- Basic Operations
 			if db_handler.count = 1 then
 				Result := fetch_user
 			end
-			post_execution
+
 		end
 
 	user_by_name (a_name: READABLE_STRING_32): detachable CMS_USER
@@ -96,7 +96,7 @@ feature -- Basic Operations
 			if db_handler.count = 1 then
 				Result := fetch_user
 			end
-			post_execution
+
 		end
 
 
@@ -113,7 +113,7 @@ feature -- Basic Operations
 			if db_handler.count = 1 then
 				Result := fetch_user
 			end
-			post_execution
+
 		end
 
 	user_salt (a_username: READABLE_STRING_32): detachable READABLE_STRING_32
@@ -131,7 +131,7 @@ feature -- Basic Operations
 					Result := l_salt.as_string_32
 				end
 			end
-			post_execution
+
 		end
 
 	count: INTEGER
@@ -146,7 +146,7 @@ feature -- Basic Operations
 			if db_handler.count = 1 then
 				Result := db_handler.read_integer_32 (1)
 			end
-			post_execution
+
 		end
 
 feature -- New Object
@@ -189,18 +189,5 @@ feature -- Sql Queries
 		-- SQL Insert to add a new node.
 
 
-feature {NONE} -- Implementation
-
-	post_execution
-			-- Post database execution.
-		do
-			if db_handler.successful then
-				set_successful
-			else
-				if attached db_handler.last_error then
-					set_last_error_from_handler (db_handler.last_error)
-				end
-			end
-		end
 
 end
diff --git a/library/persistence/implementation/sqlite/tests/tests-safe.ecf b/library/persistence/implementation/sqlite/tests/tests-safe.ecf
index cdeb22e..a905aec 100644
--- a/library/persistence/implementation/sqlite/tests/tests-safe.ecf
+++ b/library/persistence/implementation/sqlite/tests/tests-safe.ecf
@@ -8,6 +8,7 @@
 		<setting name="concurrency" value="thread"/>
 		<library name="base" location="$ISE_LIBRARY\library\base\base-safe.ecf"/>
 		<library name="crypto" location="$ISE_LIBRARY\unstable\library\text\encryption\crypto\crypto-safe.ecf"/>
+		<library name="model" location="..\..\..\..\model\cms_model-safe.ecf"/>
 		<library name="persitence_sqlite" location="..\persistence_sqlite-safe.ecf" readonly="false"/>
 		<library name="process" location="$ISE_LIBRARY\library\process\process-safe.ecf"/>
 		<library name="testing" location="$ISE_LIBRARY\library\testing\testing-safe.ecf"/>