diff --git a/1.sources/MyHealth/src/ejb/common/CommonFacadeBean.java b/1.sources/MyHealth/src/ejb/common/CommonFacadeBean.java
new file mode 100644
index 0000000..44fdb1e
--- /dev/null
+++ b/1.sources/MyHealth/src/ejb/common/CommonFacadeBean.java
@@ -0,0 +1,152 @@
+package ejb.common;
+
+import java.util.ArrayList;
+import java.util.Collection;
+
+import javax.ejb.Stateless;
+import javax.persistence.EntityManager;
+import javax.persistence.PersistenceContext;
+import javax.persistence.Query;
+
+import TO.FamilyDoctorTO;
+import TO.MedicalSpecialtyTO;
+import TO.PatientTO;
+import TO.PrimaryHealthCareCenterTO;
+import TO.SpecialistDoctorTO;
+import jpa.FamilyDoctorJPA;
+import jpa.MedicalSpecialtyJPA;
+import jpa.PatientJPA;
+import jpa.PrimaryHealthCareCenterJPA;
+import jpa.SpecialistDoctorJPA;
+
+@Stateless
+public class CommonFacadeBean implements CommonFacadeRemote, CommonFacadeLocal {
+	// Persistence Unit Context
+	@PersistenceContext(unitName = "MyHealth")
+	private EntityManager entman;
+
+	/**
+	 * Metodo que devuelve todas las especialidades medicas
+	 */
+	public Collection<MedicalSpecialtyTO> listAllMedicalSpecialities() {
+		return this.listPagedMedicalSpecialities(0, 0);
+	}
+
+	/**
+	 * Metodo que devuelve las especialidades médicas de forma paginada
+	 * 
+	 * Acepta como parametro la página (comenzando en 0) y el número de elementos de
+	 * cada página
+	 * 
+	 */
+	public Collection<MedicalSpecialtyTO> listPagedMedicalSpecialities(int pageNumber, int pageSize) {
+		Query query = entman.createQuery("from MedicalSpecialtyJPA order by name");
+
+		if (pageSize > 0) {
+			query.setFirstResult(pageNumber * pageSize);
+			query.setMaxResults(pageSize);
+		}
+
+		@SuppressWarnings("unchecked")
+		Collection<MedicalSpecialtyJPA> allJPA = query.getResultList();
+		Collection<MedicalSpecialtyTO> allSpecialities = new ArrayList<MedicalSpecialtyTO>();
+
+		for (MedicalSpecialtyJPA ms : allJPA) {
+			allSpecialities.add(new MedicalSpecialtyTO(ms.getName(), ms.getDescription()));
+		}
+
+		return allSpecialities;
+	}
+
+	public Collection<PrimaryHealthCareCenterTO> listAllCAPs() {
+		return this.listPagedAllCAPs(0, 0);
+	}
+
+	public Collection<PrimaryHealthCareCenterTO> listPagedAllCAPs(int pageNumber, int pageSize) {
+		Query query = entman.createQuery("from PrimaryHealthCareCenterJPA order by name");
+
+		if (pageSize > 0) {
+			query.setFirstResult(pageNumber * pageSize);
+			query.setMaxResults(pageSize);
+		}
+
+		@SuppressWarnings("unchecked")
+		Collection<PrimaryHealthCareCenterJPA> allJPA = query.getResultList();
+		Collection<PrimaryHealthCareCenterTO> allCAPs = new ArrayList<PrimaryHealthCareCenterTO>();
+
+		for (PrimaryHealthCareCenterJPA cap : allJPA) {
+			allCAPs.add(new PrimaryHealthCareCenterTO(cap.getName(), cap.getLocation()));
+		}
+
+		return allCAPs;
+	}
+
+	public Collection<FamilyDoctorTO> listAllFamilyDoctors() {
+		return this.listAllFamilyDoctors(0, 0);
+	}
+
+	public Collection<FamilyDoctorTO> listAllFamilyDoctors(int pageNumber, int pageSize) {
+		Query query = entman.createQuery("from FamilyDoctorJPA order by name, surname");
+
+		if (pageSize > 0) {
+			query.setFirstResult(pageNumber * pageSize);
+			query.setMaxResults(pageSize);
+		}
+
+		@SuppressWarnings("unchecked")
+		Collection<FamilyDoctorJPA> allFDsJPA = query.getResultList();
+		Collection<FamilyDoctorTO> allFDTOs = new ArrayList<FamilyDoctorTO>();
+
+		for (FamilyDoctorJPA item : allFDsJPA) {
+			allFDTOs.add(new FamilyDoctorTO(item.getId(), item.getNif(), item.getName(), item.getSurname(), item.getPassword(), item.getEmail(), null));
+		}
+
+		return allFDTOs;		
+	}
+
+	public PatientTO retrievePatient(int patientId) throws Exception {
+		PatientJPA pat = entman.find(PatientJPA.class, patientId);
+
+		if (pat == null) {
+			throw new Exception("No se pueden actualizar los datos del paciente porque no se encuentra en la base de datos ningún registro con id: " + String.valueOf(patientId));
+		}
+
+		FamilyDoctorTO fdTO = null;
+		if (pat.getFamilyDoctor() != null) {
+			FamilyDoctorJPA fd = pat.getFamilyDoctor();
+			fdTO = new FamilyDoctorTO(fd.getId(), fd.getNif(), fd.getName(), fd.getSurname(), fd.getPassword(), fd.getEmail(), null);
+		}
+
+		PatientTO paTO = new PatientTO(pat.getId(), pat.getNif(), pat.getName(), pat.getSurname(), pat.getPassword(), pat.getEmail(), fdTO);
+		return paTO;
+	}
+
+	public FamilyDoctorTO retrieveFamilyDoctor(int ProfessionalNumberId) throws Exception {
+		FamilyDoctorJPA fd = entman.find(FamilyDoctorJPA.class, ProfessionalNumberId);
+		if (fd == null) {
+			throw new Exception("No se encuentra en la base de datos ningún médico de familia con id: " + String.valueOf(ProfessionalNumberId));
+		}
+
+		PrimaryHealthCareCenterTO phc = null;
+		if (fd.getPrimaryHealthCareCenter() != null)
+			phc = new PrimaryHealthCareCenterTO(fd.getPrimaryHealthCareCenter().getName(), fd.getPrimaryHealthCareCenter().getLocation());
+
+		FamilyDoctorTO fdTO = new FamilyDoctorTO(fd.getId(), fd.getNif(), fd.getName(), fd.getSurname(), fd.getPassword(), fd.getEmail(), phc);
+		return fdTO;
+	}
+
+	public SpecialistDoctorTO retrieveSpecialistDoctor(int professionalId) throws Exception {
+		SpecialistDoctorJPA sd = entman.find(SpecialistDoctorJPA.class, professionalId);
+		if (sd == null) {
+			throw new Exception(
+					"No se pueden actualizar los datos del médico de familia porque no se encuentra en la base de datos ningún registro con id: " + String.valueOf(professionalId));
+		}
+
+		MedicalSpecialtyTO ms = null;
+		if (sd.getMedicalSpecialty() != null)
+			ms = new MedicalSpecialtyTO(sd.getMedicalSpecialty().getName(), sd.getMedicalSpecialty().getDescription());
+
+		SpecialistDoctorTO sdTO = new SpecialistDoctorTO(sd.getId(), sd.getNif(), sd.getName(), sd.getSurname(), sd.getPassword(), sd.getEmail(), ms);
+		return sdTO;
+	}
+}
diff --git a/1.sources/MyHealth/src/ejb/common/CommonFacadeLocal.java b/1.sources/MyHealth/src/ejb/common/CommonFacadeLocal.java
new file mode 100644
index 0000000..3ec40c9
--- /dev/null
+++ b/1.sources/MyHealth/src/ejb/common/CommonFacadeLocal.java
@@ -0,0 +1,38 @@
+package ejb.common;
+
+import java.util.Collection;
+
+import javax.ejb.Local;
+
+import TO.FamilyDoctorTO;
+import TO.MedicalSpecialtyTO;
+import TO.PatientTO;
+import TO.PrimaryHealthCareCenterTO;
+import TO.SpecialistDoctorTO;
+
+/**
+ * 
+ * @author Marcos García Núñez (mgarcianun@uoc.edu)
+ *
+ */
+@Local
+public interface CommonFacadeLocal {
+
+	public Collection<MedicalSpecialtyTO> listAllMedicalSpecialities();
+
+	public Collection<MedicalSpecialtyTO> listPagedMedicalSpecialities(int pageNumber, int pageSize);
+
+	public Collection<PrimaryHealthCareCenterTO> listAllCAPs();
+	
+	public Collection<PrimaryHealthCareCenterTO> listPagedAllCAPs(int pageNumber, int pageSize);
+
+	public Collection<FamilyDoctorTO> listAllFamilyDoctors();
+	
+	public Collection<FamilyDoctorTO> listAllFamilyDoctors(int pageNumber, int pageSize);
+	
+	public PatientTO retrievePatient(int patientId) throws Exception;
+
+	public FamilyDoctorTO retrieveFamilyDoctor(int ProfessionalNumberId) throws Exception;
+
+	public SpecialistDoctorTO retrieveSpecialistDoctor(int ProfessionalNumberId) throws Exception;
+}
diff --git a/1.sources/MyHealth/src/ejb/common/CommonFacadeRemote.java b/1.sources/MyHealth/src/ejb/common/CommonFacadeRemote.java
new file mode 100644
index 0000000..6a9732b
--- /dev/null
+++ b/1.sources/MyHealth/src/ejb/common/CommonFacadeRemote.java
@@ -0,0 +1,38 @@
+package ejb.common;
+
+import java.util.Collection;
+
+import javax.ejb.Remote;
+
+import TO.FamilyDoctorTO;
+import TO.MedicalSpecialtyTO;
+import TO.PatientTO;
+import TO.PrimaryHealthCareCenterTO;
+import TO.SpecialistDoctorTO;
+
+/**
+ * 
+ * @author Marcos García Núñez (mgarcianun@uoc.edu)
+ *
+ */
+@Remote
+public interface CommonFacadeRemote {
+
+	public Collection<MedicalSpecialtyTO> listAllMedicalSpecialities();
+
+	public Collection<MedicalSpecialtyTO> listPagedMedicalSpecialities(int pageNumber, int pageSize);
+
+	public Collection<PrimaryHealthCareCenterTO> listAllCAPs();
+	
+	public Collection<PrimaryHealthCareCenterTO> listPagedAllCAPs(int pageNumber, int pageSize);
+
+	public Collection<FamilyDoctorTO> listAllFamilyDoctors();
+	
+	public Collection<FamilyDoctorTO> listAllFamilyDoctors(int pageNumber, int pageSize);
+	
+	public PatientTO retrievePatient(int patientId) throws Exception;
+
+	public FamilyDoctorTO retrieveFamilyDoctor(int ProfessionalNumberId) throws Exception;
+
+	public SpecialistDoctorTO retrieveSpecialistDoctor(int ProfessionalNumberId) throws Exception;
+}