diff --git a/ComputerStore/ComputerStore.sln b/ComputerStore/ComputerStore.sln
index 1d2b4a9..112e959 100644
--- a/ComputerStore/ComputerStore.sln
+++ b/ComputerStore/ComputerStore.sln
@@ -5,6 +5,14 @@ VisualStudioVersion = 17.5.33516.290
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ComputerStore", "ComputerStore.csproj", "{695B79EB-71FD-456D-BFEA-634500FF2ECB}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ComputerStoreBusinessLogic", "..\ComputerStoreBusinessLogic\ComputerStoreBusinessLogic.csproj", "{17F8960F-03CB-49D7-B335-931E6BE5F9FF}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ComputerStoreContracts", "..\ComputerStoreContracts\ComputerStoreContracts.csproj", "{1C8DB816-F530-4CC3-9F36-F6191FE49C10}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ComputerStoreDataModels", "..\ComputerStoreDataModels\ComputerStoreDataModels.csproj", "{93679794-7F9A-43C4-A7C3-A1AE77FAB964}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ComputerStoreDatabaseImplement", "..\ComputerStoreDatabaseImplement\ComputerStoreDatabaseImplement.csproj", "{24D66D03-F9DA-46C0-8C52-F55DDACDE8AF}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -15,6 +23,22 @@ Global
 		{695B79EB-71FD-456D-BFEA-634500FF2ECB}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{695B79EB-71FD-456D-BFEA-634500FF2ECB}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{695B79EB-71FD-456D-BFEA-634500FF2ECB}.Release|Any CPU.Build.0 = Release|Any CPU
+		{17F8960F-03CB-49D7-B335-931E6BE5F9FF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{17F8960F-03CB-49D7-B335-931E6BE5F9FF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{17F8960F-03CB-49D7-B335-931E6BE5F9FF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{17F8960F-03CB-49D7-B335-931E6BE5F9FF}.Release|Any CPU.Build.0 = Release|Any CPU
+		{1C8DB816-F530-4CC3-9F36-F6191FE49C10}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{1C8DB816-F530-4CC3-9F36-F6191FE49C10}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{1C8DB816-F530-4CC3-9F36-F6191FE49C10}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{1C8DB816-F530-4CC3-9F36-F6191FE49C10}.Release|Any CPU.Build.0 = Release|Any CPU
+		{93679794-7F9A-43C4-A7C3-A1AE77FAB964}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{93679794-7F9A-43C4-A7C3-A1AE77FAB964}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{93679794-7F9A-43C4-A7C3-A1AE77FAB964}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{93679794-7F9A-43C4-A7C3-A1AE77FAB964}.Release|Any CPU.Build.0 = Release|Any CPU
+		{24D66D03-F9DA-46C0-8C52-F55DDACDE8AF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{24D66D03-F9DA-46C0-8C52-F55DDACDE8AF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{24D66D03-F9DA-46C0-8C52-F55DDACDE8AF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{24D66D03-F9DA-46C0-8C52-F55DDACDE8AF}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/ComputerStoreBusinessLogic/ComputerStoreBusinessLogic.csproj b/ComputerStoreBusinessLogic/ComputerStoreBusinessLogic.csproj
new file mode 100644
index 0000000..132c02c
--- /dev/null
+++ b/ComputerStoreBusinessLogic/ComputerStoreBusinessLogic.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/ComputerStoreContracts/ComputerStoreContracts.csproj b/ComputerStoreContracts/ComputerStoreContracts.csproj
new file mode 100644
index 0000000..132c02c
--- /dev/null
+++ b/ComputerStoreContracts/ComputerStoreContracts.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/ComputerStoreDataModels/ComputerStoreDataModels.csproj b/ComputerStoreDataModels/ComputerStoreDataModels.csproj
new file mode 100644
index 0000000..132c02c
--- /dev/null
+++ b/ComputerStoreDataModels/ComputerStoreDataModels.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/ComputerStoreDatabaseImplement/ComputerStoreDatabaseImplement.csproj b/ComputerStoreDatabaseImplement/ComputerStoreDatabaseImplement.csproj
new file mode 100644
index 0000000..132c02c
--- /dev/null
+++ b/ComputerStoreDatabaseImplement/ComputerStoreDatabaseImplement.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>