diff --git a/DbFirst.Application/Catalogs/CatalogReadDto.cs b/DbFirst.Application/Catalogs/CatalogReadDto.cs
deleted file mode 100644
index 5030170..0000000
--- a/DbFirst.Application/Catalogs/CatalogReadDto.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-namespace DbFirst.Application.Catalogs;
-
-public class CatalogReadDto
-{
-    public int Guid { get; set; }
-    public string CatTitle { get; set; } = string.Empty;
-    public string CatString { get; set; } = string.Empty;
-    public string AddedWho { get; set; } = string.Empty;
-    public DateTime AddedWhen { get; set; }
-    public string? ChangedWho { get; set; }
-    public DateTime? ChangedWhen { get; set; }
-}
diff --git a/DbFirst.Application/Catalogs/CatalogWriteDto.cs b/DbFirst.Application/Catalogs/CatalogWriteDto.cs
deleted file mode 100644
index 0d92af9..0000000
--- a/DbFirst.Application/Catalogs/CatalogWriteDto.cs
+++ /dev/null
@@ -1,10 +0,0 @@
-using DbFirst.Domain;
-
-namespace DbFirst.Application.Catalogs;
-
-public class CatalogWriteDto
-{
-    public string CatTitle { get; set; } = string.Empty;
-    public string CatString { get; set; } = string.Empty;
-    public CatalogUpdateProcedure UpdateProcedure { get; set; } = CatalogUpdateProcedure.Update;
-}
diff --git a/DbFirst.Application/DbFirst.Application.csproj b/DbFirst.Application/DbFirst.Application.csproj
index b857cc5..8b123bd 100644
--- a/DbFirst.Application/DbFirst.Application.csproj
+++ b/DbFirst.Application/DbFirst.Application.csproj
@@ -17,4 +17,8 @@
     <ProjectReference Include="..\DbFirst.Domain\DbFirst.Domain.csproj" />
   </ItemGroup>
 
+  <ItemGroup>
+    <Folder Include="Layouts\" />
+  </ItemGroup>
+
 </Project>
diff --git a/DbFirst.Application/Layouts/LayoutDto.cs b/DbFirst.Application/Layouts/LayoutDto.cs
deleted file mode 100644
index b19a1a8..0000000
--- a/DbFirst.Application/Layouts/LayoutDto.cs
+++ /dev/null
@@ -1,9 +0,0 @@
-namespace DbFirst.Application.Layouts;
-
-public class LayoutDto
-{
-    public string LayoutType { get; set; } = string.Empty;
-    public string LayoutKey { get; set; } = string.Empty;
-    public string UserName { get; set; } = string.Empty;
-    public string LayoutData { get; set; } = string.Empty;
-}
\ No newline at end of file
diff --git a/DbFirst.Application/MassData/MassDataReadDto.cs b/DbFirst.Application/MassData/MassDataReadDto.cs
deleted file mode 100644
index db2fa09..0000000
--- a/DbFirst.Application/MassData/MassDataReadDto.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-namespace DbFirst.Application.MassData;
-
-public class MassDataReadDto
-{
-    public int Id { get; set; }
-    public string CustomerName { get; set; } = string.Empty;
-    public decimal Amount { get; set; }
-    public string Category { get; set; } = string.Empty;
-    public bool StatusFlag { get; set; }
-    public DateTime AddedWhen { get; set; }
-    public DateTime? ChangedWhen { get; set; }
-}
diff --git a/DbFirst.Application/MassData/MassDataWriteDto.cs b/DbFirst.Application/MassData/MassDataWriteDto.cs
deleted file mode 100644
index e1cacb5..0000000
--- a/DbFirst.Application/MassData/MassDataWriteDto.cs
+++ /dev/null
@@ -1,9 +0,0 @@
-namespace DbFirst.Application.MassData;
-
-public class MassDataWriteDto
-{
-    public string CustomerName { get; set; } = string.Empty;
-    public decimal Amount { get; set; }
-    public string Category { get; set; } = string.Empty;
-    public bool StatusFlag { get; set; }
-}
diff --git a/DbFirst.BlazorWebApp/Models/CatalogReadDto.cs b/DbFirst.BlazorWebApp/Models/CatalogReadDto.cs
deleted file mode 100644
index 055ed95..0000000
--- a/DbFirst.BlazorWebApp/Models/CatalogReadDto.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-namespace DbFirst.BlazorWebApp.Models;
-
-public class CatalogReadDto
-{
-    public int Guid { get; set; }
-    public string CatTitle { get; set; } = string.Empty;
-    public string CatString { get; set; } = string.Empty;
-    public string AddedWho { get; set; } = string.Empty;
-    public DateTime AddedWhen { get; set; }
-    public string? ChangedWho { get; set; }
-    public DateTime? ChangedWhen { get; set; }
-}
diff --git a/DbFirst.BlazorWebApp/Models/CatalogWriteDto.cs b/DbFirst.BlazorWebApp/Models/CatalogWriteDto.cs
deleted file mode 100644
index 1525360..0000000
--- a/DbFirst.BlazorWebApp/Models/CatalogWriteDto.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace DbFirst.BlazorWebApp.Models;
-
-public class CatalogWriteDto
-{
-    public string CatTitle { get; set; } = string.Empty;
-    public string CatString { get; set; } = string.Empty;
-    public int UpdateProcedure { get; set; }
-}
diff --git a/DbFirst.BlazorWebApp/Models/DashboardInfoDto.cs b/DbFirst.BlazorWebApp/Models/DashboardInfoDto.cs
deleted file mode 100644
index e3df704..0000000
--- a/DbFirst.BlazorWebApp/Models/DashboardInfoDto.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-namespace DbFirst.BlazorWebApp.Models;
-
-public class DashboardInfoDto
-{
-    public string Id { get; set; } = string.Empty;
-    public string Name { get; set; } = string.Empty;
-}
diff --git a/DbFirst.BlazorWebApp/Models/LayoutDto.cs b/DbFirst.BlazorWebApp/Models/LayoutDto.cs
deleted file mode 100644
index 3cacdb8..0000000
--- a/DbFirst.BlazorWebApp/Models/LayoutDto.cs
+++ /dev/null
@@ -1,9 +0,0 @@
-namespace DbFirst.BlazorWebApp.Models;
-
-public class LayoutDto
-{
-    public string LayoutType { get; set; } = string.Empty;
-    public string LayoutKey { get; set; } = string.Empty;
-    public string UserName { get; set; } = string.Empty;
-    public string LayoutData { get; set; } = string.Empty;
-}
diff --git a/DbFirst.BlazorWebApp/Models/MassDataReadDto.cs b/DbFirst.BlazorWebApp/Models/MassDataReadDto.cs
deleted file mode 100644
index f7ab6db..0000000
--- a/DbFirst.BlazorWebApp/Models/MassDataReadDto.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-namespace DbFirst.BlazorWebApp.Models;
-
-public class MassDataReadDto
-{
-    public int Id { get; set; }
-    public string CustomerName { get; set; } = string.Empty;
-    public decimal Amount { get; set; }
-    public string Category { get; set; } = string.Empty;
-    public bool StatusFlag { get; set; }
-    public DateTime AddedWhen { get; set; }
-    public DateTime? ChangedWhen { get; set; }
-}
diff --git a/DbFirst.BlazorWebApp/Models/MassDataWriteDto.cs b/DbFirst.BlazorWebApp/Models/MassDataWriteDto.cs
deleted file mode 100644
index 81af9d5..0000000
--- a/DbFirst.BlazorWebApp/Models/MassDataWriteDto.cs
+++ /dev/null
@@ -1,9 +0,0 @@
-namespace DbFirst.BlazorWebApp.Models;
-
-public class MassDataWriteDto
-{
-    public string CustomerName { get; set; } = string.Empty;
-    public decimal Amount { get; set; }
-    public string Category { get; set; } = string.Empty;
-    public bool StatusFlag { get; set; }
-}