diff --git a/IServices/INoteService.cs b/IServices/INoteService.cs
index e3f855f..d623438 100644
--- a/IServices/INoteService.cs
+++ b/IServices/INoteService.cs
@@ -1,4 +1,5 @@
 using IO.Swagger.DTO;
+using Org.BouncyCastle.Bcpg.OpenPgp;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -8,5 +9,12 @@ namespace EPAServeur.IServices
 {
 	interface INoteService
 	{
+		public List<AffichageNoteDTO> GetNotes();
+		public List<AffichageNoteDTO> GetNotesByAuteur(Guid? idAuteur);
+		public DetailsNoteDTO GetNoteById(int? idNote);
+		public List<AffichageNoteDTO> GetNotByCollaborateur(Guid? idAuteur, Guid? idCollaborateur);
+		public bool AjouterNote(DetailsNoteDTO nouvelleNote);
+		public bool SupprimerNote(int? idNote);
+		public void UpdateNote(int? idNote, DetailsNoteDTO note);
 	}
 }
diff --git a/Services/NoteService.cs b/Services/NoteService.cs
new file mode 100644
index 0000000..e818d76
--- /dev/null
+++ b/Services/NoteService.cs
@@ -0,0 +1,65 @@
+using EPAServeur.IServices;
+using EPAServeur.Models.Notes;
+using IO.Swagger.DTO;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace EPAServeur.Services
+{
+	public class NoteService : INoteService
+	{
+		public bool AjouterNote(DetailsNoteDTO nouvelleNote)
+		{
+			throw new NotImplementedException();
+		}
+
+		public List<AffichageNoteDTO> GetNotByCollaborateur(Guid? idAuteur, Guid? idCollaborateur)
+		{
+			throw new NotImplementedException();
+		}
+
+		public DetailsNoteDTO GetNoteById(int? idNote)
+		{
+			throw new NotImplementedException();
+		}
+
+		public List<AffichageNoteDTO> GetNotes()
+		{
+			throw new NotImplementedException();
+		}
+
+		public List<AffichageNoteDTO> GetNotesByAuteur(Guid? idAuteur)
+		{
+			throw new NotImplementedException();
+		}
+
+		public bool SupprimerNote(int? idNote)
+		{
+			throw new NotImplementedException();
+		}
+
+		public void UpdateNote(int? idNote, DetailsNoteDTO note)
+		{
+			throw new NotImplementedException();
+		}
+
+		//Object to DTO
+		public AffichageNoteDTO NoteToAffichageDTO(Note note)
+		{
+			return null;
+		}
+
+		public DetailsNoteDTO NoteToDetailSDTO(Note note)
+		{
+			return null;
+		}
+
+		//DTO to Object
+		public Note DetailsNoteDTOToNote(DetailsNoteDTO detailsNoteDTO)
+		{
+			return null;
+		}
+	}
+}