diff --git a/Polyclinic/PolyclinicContracts/BindingModels/.gitkeep b/Polyclinic/PolyclinicContracts/BindingModels/.gitkeep
deleted file mode 100644
index e69de29..0000000
diff --git a/Polyclinic/PolyclinicContracts/BindingModels/CourseBindingModel.cs b/Polyclinic/PolyclinicContracts/BindingModels/CourseBindingModel.cs
new file mode 100644
index 0000000..611bfe5
--- /dev/null
+++ b/Polyclinic/PolyclinicContracts/BindingModels/CourseBindingModel.cs
@@ -0,0 +1,14 @@
+using PolyclinicDataModels.Models;
+
+namespace PolyclinicContracts.BindingModels
+{
+    public class CourseBindingModel : ICourseModel
+    {
+        public int DaysCount { get; set; }
+        public int PillsPerDay { get; set; }
+        public string Comment { get; set; } = string.Empty;
+        public Dictionary<int, IDiagnosisModel> CourseDiagnosis { get; set; } = new();
+        public Dictionary<int, IRecipeModel> CourseRecipes { get; set; } = new();
+        public int Id { get; set; }
+    }
+}
diff --git a/Polyclinic/PolyclinicContracts/BindingModels/DiagnosisBindingModel.cs b/Polyclinic/PolyclinicContracts/BindingModels/DiagnosisBindingModel.cs
new file mode 100644
index 0000000..9d936df
--- /dev/null
+++ b/Polyclinic/PolyclinicContracts/BindingModels/DiagnosisBindingModel.cs
@@ -0,0 +1,12 @@
+using PolyclinicDataModels.Models;
+
+namespace PolyclinicContracts.BindingModels
+{
+    public class DiagnosisBindingModel : IDiagnosisModel
+    {
+        public string Name { get; set; } = string.Empty;
+        public string Comment { get; set; } = string.Empty;
+        public int ExecutorId { get; set; }
+        public int Id { get; set; }
+    }
+}
diff --git a/Polyclinic/PolyclinicContracts/BindingModels/ExecutorBindingModel.cs b/Polyclinic/PolyclinicContracts/BindingModels/ExecutorBindingModel.cs
new file mode 100644
index 0000000..f97a6fe
--- /dev/null
+++ b/Polyclinic/PolyclinicContracts/BindingModels/ExecutorBindingModel.cs
@@ -0,0 +1,12 @@
+using PolyclinicDataModels.Models;
+
+namespace PolyclinicContracts.BindingModels
+{
+    public class ExecutorBindingModel : IExecutorModel
+    {
+        public string FIO { get; set; } = string.Empty;
+        public string Email { get; set; } = string.Empty;
+        public string Password { get; set; } = string.Empty;
+        public int Id { get; set; }
+    }
+}
diff --git a/Polyclinic/PolyclinicContracts/BindingModels/SymptomBindingModel.cs b/Polyclinic/PolyclinicContracts/BindingModels/SymptomBindingModel.cs
new file mode 100644
index 0000000..bc4c191
--- /dev/null
+++ b/Polyclinic/PolyclinicContracts/BindingModels/SymptomBindingModel.cs
@@ -0,0 +1,13 @@
+using PolyclinicDataModels.Models;
+
+namespace PolyclinicContracts.BindingModels
+{
+    public class SymptomBindingModel : ISymptomModel
+    {
+        public string Name { get; set; } = string.Empty;
+        public string Comment { get; set; } = string.Empty;
+        public Dictionary<int, IDiagnosisModel> SymptomDiagnosis { get; set; } = new();
+        public Dictionary<int, IRecipeModel> SymptomRecipes { get; set; } = new();
+        public int Id { get; set; }
+    }
+}
diff --git a/Polyclinic/PolyclinicContracts/PolyclinicContracts.csproj b/Polyclinic/PolyclinicContracts/PolyclinicContracts.csproj
index d7f6b16..8eca715 100644
--- a/Polyclinic/PolyclinicContracts/PolyclinicContracts.csproj
+++ b/Polyclinic/PolyclinicContracts/PolyclinicContracts.csproj
@@ -7,11 +7,14 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <Folder Include="BindingModels\" />
     <Folder Include="StoragesContracts\" />
     <Folder Include="SearchModels\" />
     <Folder Include="ViewModels\" />
     <Folder Include="BusinessLogicsContracts\" />
   </ItemGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\PolyclinicDataModels\PolyclinicDataModels.csproj" />
+  </ItemGroup>
+
 </Project>
diff --git a/Polyclinic/PolyclinicDataModels/Models/ICourseModel.cs b/Polyclinic/PolyclinicDataModels/Models/ICourseModel.cs
index acd5ed7..f018879 100644
--- a/Polyclinic/PolyclinicDataModels/Models/ICourseModel.cs
+++ b/Polyclinic/PolyclinicDataModels/Models/ICourseModel.cs
@@ -1,6 +1,6 @@
 namespace PolyclinicDataModels.Models
 {
-    public interface ICourseModel
+    public interface ICourseModel : IId
     {
         int DaysCount { get; }
         int PillsPerDay { get; }
diff --git a/Polyclinic/PolyclinicDataModels/Models/IDiagnosisModel.cs b/Polyclinic/PolyclinicDataModels/Models/IDiagnosisModel.cs
index 484e6e9..7e23ea8 100644
--- a/Polyclinic/PolyclinicDataModels/Models/IDiagnosisModel.cs
+++ b/Polyclinic/PolyclinicDataModels/Models/IDiagnosisModel.cs
@@ -1,9 +1,9 @@
 namespace PolyclinicDataModels.Models
 {
-    public interface IDiagnosisModel
+    public interface IDiagnosisModel : IId
     {
         string Name { get; }
         string Comment { get; }
-        string ExecutorId { get; }
+        int ExecutorId { get; }
     }
 }
diff --git a/Polyclinic/PolyclinicDataModels/Models/IExecutorModel.cs b/Polyclinic/PolyclinicDataModels/Models/IExecutorModel.cs
index 8806f42..44b0365 100644
--- a/Polyclinic/PolyclinicDataModels/Models/IExecutorModel.cs
+++ b/Polyclinic/PolyclinicDataModels/Models/IExecutorModel.cs
@@ -1,6 +1,6 @@
 namespace PolyclinicDataModels.Models
 {
-    public interface IExecutorModel
+    public interface IExecutorModel : IId
     {
         string FIO {  get; }
         string Email { get; }