diff --git a/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Create/CreateFileController.cs b/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Create/CreateFileController.cs
index 53ef7103..b94a9472 100644
--- a/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Create/CreateFileController.cs
+++ b/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Create/CreateFileController.cs
@@ -2,7 +2,6 @@
 using System.Threading.Tasks;
 
 using KeySwitchManager.Interactors.KeySwitches;
-using KeySwitchManager.UseCase.Commons;
 using KeySwitchManager.UseCase.KeySwitches.Create;
 using KeySwitchManager.UseCase.KeySwitches.Export;
 
@@ -11,11 +10,11 @@ namespace KeySwitchManager.Applications.Standalone.Core.Controllers.Create
     public class CreateFileController : IController
     {
         private IExportStrategy Strategy { get; }
-        private IOutputPort<CreateOutputData> Presenter { get; }
+        private ICreatePresenter Presenter { get; }
 
         public CreateFileController(
             IExportStrategy strategy,
-            IOutputPort<CreateOutputData> presenter )
+            ICreatePresenter presenter )
         {
             Strategy  = strategy;
             Presenter = presenter;
diff --git a/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Create/CreateFileControllerFactory.cs b/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Create/CreateFileControllerFactory.cs
index 78a394c7..531fda28 100644
--- a/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Create/CreateFileControllerFactory.cs
+++ b/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Create/CreateFileControllerFactory.cs
@@ -5,7 +5,6 @@
 using KeySwitchManager.Infrastructures.Storage.KeySwitches;
 using KeySwitchManager.Infrastructures.Storage.Spreadsheet.ClosedXml.KeySwitches.Export;
 using KeySwitchManager.Infrastructures.Storage.Yaml.KeySwitches.Export;
-using KeySwitchManager.UseCase.Commons;
 using KeySwitchManager.UseCase.KeySwitches.Create;
 using KeySwitchManager.UseCase.KeySwitches.Export;
 
@@ -13,12 +12,12 @@ namespace KeySwitchManager.Applications.Standalone.Core.Controllers.Create
 {
     public interface ICreateControllerFactory
     {
-        IController Create( string outputFilePath, IOutputPort<CreateOutputData> presenter );
+        IController Create( string outputFilePath, ICreatePresenter presenter );
     }
 
     public class CreateFileControllerFactory : ICreateControllerFactory
     {
-        IController ICreateControllerFactory.Create( string outputFilePath, IOutputPort<CreateOutputData> presenter )
+        IController ICreateControllerFactory.Create( string outputFilePath, ICreatePresenter presenter )
         {
             var outputDirectory = new DirectoryPath( Path.GetDirectoryName( outputFilePath ) ?? string.Empty );
             var fileName = outputFilePath.ToLower();
diff --git a/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Dump/DumpFileController.cs b/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Dump/DumpController.cs
similarity index 72%
rename from KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Dump/DumpFileController.cs
rename to KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Dump/DumpController.cs
index 9e92f5ea..7ab97500 100644
--- a/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Dump/DumpFileController.cs
+++ b/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Dump/DumpController.cs
@@ -3,6 +3,7 @@
 
 using KeySwitchManager.Domain.KeySwitches;
 using KeySwitchManager.Interactors.KeySwitches;
+using KeySwitchManager.UseCase.Commons;
 using KeySwitchManager.UseCase.KeySwitches.Dump;
 using KeySwitchManager.UseCase.KeySwitches.Export;
 
@@ -10,16 +11,16 @@
 
 namespace KeySwitchManager.Applications.Standalone.Core.Controllers.Dump
 {
-    public class DumpFileController : IController
+    public class DumpController : IController
     {
         private IKeySwitchRepository SourceRepository { get; }
         private IExportStrategy Strategy { get; }
-        private IDumpFilePresenter Presenter { get; }
+        private IDumpPresenter Presenter { get; }
 
-        public DumpFileController(
+        public DumpController(
             IKeySwitchRepository sourceRepository,
             IExportStrategy strategy,
-            IDumpFilePresenter presenter )
+            IDumpPresenter presenter )
         {
             SourceRepository = sourceRepository;
             Strategy         = strategy;
@@ -33,14 +34,13 @@ public void Dispose()
 
         public async Task ExecuteAsync( CancellationToken cancellationToken )
         {
-            IDumpFileUseCase interactor = new DumpFileInteractor(
+            IDumpUseCase interactor = new DumpInteractor(
                 SourceRepository,
                 Strategy,
                 Presenter
             );
 
-            var response = await interactor.ExecuteAsync( new DumpFileRequest(), cancellationToken );
-            Presenter.Complete( response );
+            await interactor.HandleAsync( UnitInputData.Default, cancellationToken );
         }
     }
 }
diff --git a/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Dump/DumpFileControllerFactory.cs b/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Dump/DumpFileControllerFactory.cs
index 454f9af2..79cba951 100644
--- a/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Dump/DumpFileControllerFactory.cs
+++ b/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Dump/DumpFileControllerFactory.cs
@@ -1,10 +1,10 @@
 using System.IO;
 
 using KeySwitchManager.Applications.Standalone.Core.Helpers;
+using KeySwitchManager.Applications.Standalone.Core.Presenters;
 using KeySwitchManager.Applications.Standalone.Core.Views.LogView;
 using KeySwitchManager.Commons.Data;
 using KeySwitchManager.Infrastructures.Storage.Yaml.KeySwitches.Export;
-using KeySwitchManager.UseCase.KeySwitches.Dump;
 using KeySwitchManager.UseCase.KeySwitches.Export;
 
 namespace KeySwitchManager.Applications.Standalone.Core.Controllers.Dump
@@ -20,9 +20,9 @@ IController IDumpControllerFactory.Create( string databasePath, string outputFil
             var contentWriterFactory = new YamlExportContentFileWriterFactory( outputDirectory );
             var strategy = new SingleExportStrategy( contentWriterFactory, contentFactory );
 
-            var presenter = new IDumpFilePresenter.Console();
+            var presenter = new DumpPresenter( logTextView );
 
-            return new DumpFileController(
+            return new DumpController(
                 database,
                 strategy,
                 presenter
diff --git a/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Dump/DumpFilePresenter.cs b/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Dump/DumpFilePresenter.cs
deleted file mode 100644
index 4fb1c394..00000000
--- a/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Controllers/Dump/DumpFilePresenter.cs
+++ /dev/null
@@ -1,28 +0,0 @@
-using KeySwitchManager.Applications.Standalone.Core.Views.LogView;
-using KeySwitchManager.UseCase.KeySwitches.Dump;
-
-namespace KeySwitchManager.Applications.Standalone.Core.Controllers.Dump
-{
-    public class DumpFilePresenter : IDumpFilePresenter
-    {
-        private ILogTextView TextView { get; }
-
-        public DumpFilePresenter( ILogTextView textView )
-        {
-            TextView = textView;
-        }
-
-        public void Present<T>( T param )
-        {
-            if( param != null )
-            {
-                TextView.Append( param.ToString() ?? string.Empty );
-            }
-        }
-
-        public void Complete( DumpFileResponse response )
-        {
-            TextView.Append( "Complete" );
-        }
-    }
-}
diff --git a/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Presenters/DumpPresenter.cs b/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Presenters/DumpPresenter.cs
new file mode 100644
index 00000000..4de89356
--- /dev/null
+++ b/KeySwitchManager/Sources/Runtime/Applications/Standalone.Core/Presenters/DumpPresenter.cs
@@ -0,0 +1,42 @@
+using System.Threading;
+using System.Threading.Tasks;
+
+using KeySwitchManager.Applications.Standalone.Core.Views.LogView;
+using KeySwitchManager.UseCase.KeySwitches.Delete;
+using KeySwitchManager.UseCase.KeySwitches.Dump;
+
+namespace KeySwitchManager.Applications.Standalone.Core.Presenters
+{
+    public sealed class DumpPresenter : IDumpPresenter
+    {
+        public static readonly IDeletePresenter Null = new NullImpl();
+
+        private ILogTextView TextView { get; }
+
+        public DumpPresenter( ILogTextView textView )
+        {
+            TextView = textView;
+        }
+
+        public async Task HandleAsync( DumpOutputData outputData, CancellationToken cancellationToken = default )
+        {
+            TextView.Append( $"{outputData.Value.DumpDataCount} record(s) dumped" );
+            await Task.CompletedTask;
+        }
+
+        #region NullObject
+        private class NullImpl : IDeletePresenter
+        {
+            public async Task HandleDeleteBeginAsync( DeleteInputData inputData, CancellationToken cancellationToken = default )
+            {
+                await Task.CompletedTask;
+            }
+
+            public async Task HandleAsync( DeleteOutputData outputData, CancellationToken cancellationToken = default )
+            {
+                await Task.CompletedTask;
+            }
+        }
+        #endregion
+    }
+}
diff --git a/KeySwitchManager/Sources/Runtime/Applications/Xamarin.Mac/.idea/.idea.Applications.Xamarin.Mac/.idea/workspace.xml b/KeySwitchManager/Sources/Runtime/Applications/Xamarin.Mac/.idea/.idea.Applications.Xamarin.Mac/.idea/workspace.xml
index ded27880..721b552f 100644
--- a/KeySwitchManager/Sources/Runtime/Applications/Xamarin.Mac/.idea/.idea.Applications.Xamarin.Mac/.idea/workspace.xml
+++ b/KeySwitchManager/Sources/Runtime/Applications/Xamarin.Mac/.idea/.idea.Applications.Xamarin.Mac/.idea/workspace.xml
@@ -7,45 +7,7 @@
     <option name="autoReloadType" value="SELECTIVE" />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="e8a92dc3-8619-429d-923f-36b8ce0d37fa" name="Changes" comment="">
-      <change afterPath="$PROJECT_DIR$/../Standalone.Core/Presenters/CreatePresenter.cs" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/../../UseCases/Commons/IInputData.cs" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/../../UseCases/Commons/IInputPort.cs" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/../../UseCases/Commons/IOutputPort.cs" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/../../UseCases/KeySwitches/Create/CreateInputData.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../../../KeySwitchManager.sln" beforeDir="false" afterPath="$PROJECT_DIR$/../../../../KeySwitchManager.sln" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../Blazor/Pages/CreateDatabaseFile.razor" beforeDir="false" afterPath="$PROJECT_DIR$/../Blazor/Pages/CreateDatabaseFile.razor" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../Blazor/Pages/FetchData.razor" beforeDir="false" afterPath="$PROJECT_DIR$/../Blazor/Pages/FetchData.razor" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../Blazor/Program.cs" beforeDir="false" afterPath="$PROJECT_DIR$/../Blazor/Program.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../CLI/.gitignore" beforeDir="false" afterPath="$PROJECT_DIR$/../CLI/.gitignore" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../CLI/Sources/Commands/New.cs" beforeDir="false" afterPath="$PROJECT_DIR$/../CLI/Sources/Commands/New.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../Standalone.Core/Controllers/Create/CreateFileController.cs" beforeDir="false" afterPath="$PROJECT_DIR$/../Standalone.Core/Controllers/Create/CreateFileController.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../Standalone.Core/Controllers/Create/CreateFileControllerFactory.cs" beforeDir="false" afterPath="$PROJECT_DIR$/../Standalone.Core/Controllers/Create/CreateFileControllerFactory.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../Standalone.Core/Controllers/Create/CreatePresenter.cs" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/../Standalone.Core/Controllers/Create/CreateToStreamControllerFactory.cs" beforeDir="false" afterPath="$PROJECT_DIR$/../Standalone.Core/Controllers/Create/CreateToStreamControllerFactory.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../WPF/.gitignore" beforeDir="false" afterPath="$PROJECT_DIR$/../WPF/.gitignore" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.gitignore" beforeDir="false" afterPath="$PROJECT_DIR$/.gitignore" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/.idea.Applications.Xamarin.Mac/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/.idea.Applications.Xamarin.Mac/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/Applications.Xamarin.Mac.csproj" beforeDir="false" afterPath="$PROJECT_DIR$/Applications.Xamarin.Mac.csproj" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/Sources/ViewController.cs" beforeDir="false" afterPath="$PROJECT_DIR$/Sources/ViewController.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../Boundaries/Boundaries.csproj" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../Boundaries/IInputPort.cs" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../Boundaries/IOutputPort.cs" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../Domain/KeySwitches/Models/Factory/IKeySwitchFactory.cs" beforeDir="false" afterPath="$PROJECT_DIR$/../../Domain/KeySwitches/Models/Factory/IKeySwitchFactory.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../Domain/KeySwitches/OnMemoryKeySwitchRepository.cs" beforeDir="false" afterPath="$PROJECT_DIR$/../../Domain/KeySwitches/OnMemoryKeySwitchRepository.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../Infrastructures/Storage.Spreadsheet/KeySwitches/Translators/SpreadsheetImportTranslator.cs" beforeDir="false" afterPath="$PROJECT_DIR$/../../Infrastructures/Storage.Spreadsheet/KeySwitches/Translators/SpreadsheetImportTranslator.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../Infrastructures/Storage.Yaml/KeySwitches/YamlMemoryRepository.cs" beforeDir="false" afterPath="$PROJECT_DIR$/../../Infrastructures/Storage.Yaml/KeySwitches/YamlMemoryRepository.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../Infrastructures/Storage/KeySwitches/FileExportContentWriter.cs" beforeDir="false" afterPath="$PROJECT_DIR$/../../Infrastructures/Storage/KeySwitches/FileExportContentWriter.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../Infrastructures/Storage/KeySwitches/ZipExportContentWriter.cs" beforeDir="false" afterPath="$PROJECT_DIR$/../../Infrastructures/Storage/KeySwitches/ZipExportContentWriter.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../Interactors/KeySwitches/CreateInteractor.cs" beforeDir="false" afterPath="$PROJECT_DIR$/../../Interactors/KeySwitches/CreateInteractor.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../UseCases/Commons/IRequest.cs" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../UseCases/Commons/IResponse.cs" beforeDir="false" afterPath="$PROJECT_DIR$/../../UseCases/Commons/IOutputData.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../UseCases/KeySwitches/Create/CreateRequest.cs" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../UseCases/KeySwitches/Create/CreateResponse.cs" beforeDir="false" afterPath="$PROJECT_DIR$/../../UseCases/KeySwitches/Create/CreateOutputData.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../UseCases/KeySwitches/Create/ICreatePresenter.cs" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../UseCases/KeySwitches/Create/ICreateUseCase.cs" beforeDir="false" afterPath="$PROJECT_DIR$/../../UseCases/KeySwitches/Create/ICreateUseCase.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../../UseCases/UseCases.csproj" beforeDir="false" afterPath="$PROJECT_DIR$/../../UseCases/UseCases.csproj" afterDir="false" />
-    </list>
+    <list default="true" id="e8a92dc3-8619-429d-923f-36b8ce0d37fa" name="Changes" comment="" />
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
     <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
@@ -60,32 +22,32 @@
   <component name="MarkdownSettingsMigration">
     <option name="stateVersion" value="1" />
   </component>
-  <component name="ProjectColorInfo"><![CDATA[{
-  "customColor": "",
-  "associatedIndex": 1
-}]]></component>
+  <component name="ProjectColorInfo">{
+  &quot;customColor&quot;: &quot;&quot;,
+  &quot;associatedIndex&quot;: 1
+}</component>
   <component name="ProjectId" id="28htxQKznaEaEtAdxcYRavSnCSw" />
   <component name="ProjectLevelVcsManager" settingsEditedManually="true" />
   <component name="ProjectViewState">
     <option name="hideEmptyMiddlePackages" value="true" />
     <option name="showLibraryContents" value="true" />
   </component>
-  <component name="PropertiesComponent"><![CDATA[{
-  "keyToString": {
-    "RunOnceActivity.OpenProjectViewOnStart": "true",
-    "RunOnceActivity.ShowReadmeOnStart": "true",
-    "WebServerToolWindowFactoryState": "false",
-    "rider.run.widget.enabled.cache": "false",
-    "vue.rearranger.settings.migration": "true"
+  <component name="PropertiesComponent">{
+  &quot;keyToString&quot;: {
+    &quot;RunOnceActivity.OpenProjectViewOnStart&quot;: &quot;true&quot;,
+    &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
+    &quot;WebServerToolWindowFactoryState&quot;: &quot;false&quot;,
+    &quot;rider.run.widget.enabled.cache&quot;: &quot;false&quot;,
+    &quot;vue.rearranger.settings.migration&quot;: &quot;true&quot;
   },
-  "keyToStringList": {
-    "rider.external.source.directories": [
-      "/Users/hiroaki/Library/Application Support/JetBrains/Rider2023.2/resharper-host/DecompilerCache",
-      "/Users/hiroaki/Library/Application Support/JetBrains/Rider2023.2/resharper-host/SourcesCache",
-      "/Users/hiroaki/.local/share/Symbols/src"
+  &quot;keyToStringList&quot;: {
+    &quot;rider.external.source.directories&quot;: [
+      &quot;/Users/hiroaki/Library/Application Support/JetBrains/Rider2023.2/resharper-host/DecompilerCache&quot;,
+      &quot;/Users/hiroaki/Library/Application Support/JetBrains/Rider2023.2/resharper-host/SourcesCache&quot;,
+      &quot;/Users/hiroaki/.local/share/Symbols/src&quot;
     ]
   }
-}]]></component>
+}</component>
   <component name="RunManager">
     <configuration name="Applications.Xamarin.Mac" type="XamarinMacProject" factoryName="Xamarin.Mac">
       <option name="PROJECT_PATH" value="$PROJECT_DIR$/Applications.Xamarin.Mac.csproj" />
@@ -109,6 +71,7 @@
       <workItem from="1651739695827" duration="879000" />
       <workItem from="1651740748141" duration="98000" />
       <workItem from="1701148135004" duration="2092000" />
+      <workItem from="1701180496289" duration="662000" />
     </task>
     <servers />
   </component>
diff --git a/KeySwitchManager/Sources/Runtime/Interactors/KeySwitches/DumpFileInteractor.cs b/KeySwitchManager/Sources/Runtime/Interactors/KeySwitches/DumpInteractor.cs
similarity index 56%
rename from KeySwitchManager/Sources/Runtime/Interactors/KeySwitches/DumpFileInteractor.cs
rename to KeySwitchManager/Sources/Runtime/Interactors/KeySwitches/DumpInteractor.cs
index 492e3d54..176a6c68 100644
--- a/KeySwitchManager/Sources/Runtime/Interactors/KeySwitches/DumpFileInteractor.cs
+++ b/KeySwitchManager/Sources/Runtime/Interactors/KeySwitches/DumpInteractor.cs
@@ -3,32 +3,29 @@
 using System.Threading.Tasks;
 
 using KeySwitchManager.Domain.KeySwitches;
+using KeySwitchManager.UseCase.Commons;
 using KeySwitchManager.UseCase.KeySwitches.Dump;
 using KeySwitchManager.UseCase.KeySwitches.Export;
 
 namespace KeySwitchManager.Interactors.KeySwitches
 {
-    public class DumpFileInteractor : IDumpFileUseCase
+    public class DumpInteractor : IDumpUseCase
     {
         private IKeySwitchRepository Repository { get; }
         private IExportStrategy Strategy { get; }
-        private IDumpFilePresenter Presenter { get; }
+        private IDumpPresenter Presenter { get; }
 
-        public DumpFileInteractor(
-            IKeySwitchRepository repository, IExportStrategy strategy ) :
-            this( repository, strategy, new IDumpFilePresenter.Null() ) {}
-
-        public DumpFileInteractor(
+        public DumpInteractor(
             IKeySwitchRepository repository,
             IExportStrategy strategy,
-            IDumpFilePresenter presenter )
+            IDumpPresenter presenter )
         {
             Repository = repository;
-            Strategy     = strategy;
+            Strategy   = strategy;
             Presenter  = presenter;
         }
 
-        public async Task<DumpFileResponse> ExecuteAsync( DumpFileRequest request, CancellationToken cancellationToken )
+        public async Task HandleAsync( UnitInputData inputData, CancellationToken cancellationToken = default )
         {
             var all = await Repository.FindAllAsync( cancellationToken );
 
@@ -36,14 +33,16 @@ public async Task<DumpFileResponse> ExecuteAsync( DumpFileRequest request, Cance
                .ThenBy( x => x.ProductName.Value )
                .ThenBy( x => x.InstrumentName.Value ).ToList();
 
-            if( sorted.Count > 0 )
+            var dumpedCount = sorted.Count;
+
+            if( dumpedCount > 0 )
             {
                 await Strategy.ExportAsync( sorted, cancellationToken );
-                return new DumpFileResponse( sorted.Count );
             }
 
-            Presenter.Present( $"No keyswitch(es) found." );
-            return new DumpFileResponse( 0 );
+            var output = new DumpOutputData( true, new DumpOutputValue( dumpedCount ) );
+
+            await Presenter.HandleAsync( output, cancellationToken );
         }
     }
 }
diff --git a/KeySwitchManager/Sources/Runtime/UseCases/Commons/IInputData.cs b/KeySwitchManager/Sources/Runtime/UseCases/Commons/IInputData.cs
index 6e5f93a3..b72750a6 100644
--- a/KeySwitchManager/Sources/Runtime/UseCases/Commons/IInputData.cs
+++ b/KeySwitchManager/Sources/Runtime/UseCases/Commons/IInputData.cs
@@ -7,8 +7,22 @@ public interface IInputData<out TData>
         TData Value { get; }
     }
 
+    public abstract class InputData<TData> : IInputData<TData>
+    {
+        public virtual TData Value { get; }
+
+        protected InputData( TData value )
+        {
+            Value = value;
+        }
+    }
+
     public sealed class UnitInputData : IInputData<Unit>
     {
+        public static readonly UnitInputData Default = new();
+
         public Unit Value => Unit.Default;
+
+        private UnitInputData() {}
     }
 }
diff --git a/KeySwitchManager/Sources/Runtime/UseCases/Commons/IOutputData.cs b/KeySwitchManager/Sources/Runtime/UseCases/Commons/IOutputData.cs
index 6abc3461..0fb7bdcf 100644
--- a/KeySwitchManager/Sources/Runtime/UseCases/Commons/IOutputData.cs
+++ b/KeySwitchManager/Sources/Runtime/UseCases/Commons/IOutputData.cs
@@ -11,10 +11,28 @@ public interface IOutputData<out TData>
         public Exception? Error { get; }
     }
 
+    public abstract class OutputData<TData> : IOutputData<TData>
+    {
+        public virtual bool Result { get; }
+        public virtual TData Value { get; }
+        public virtual Exception? Error { get; }
+
+        protected OutputData( bool result, TData value, Exception? error = null )
+        {
+            Result = result;
+            Value  = value;
+            Error  = error;
+        }
+    }
+
     public sealed class UnitOutputData : IOutputData<Unit>
     {
+        public static readonly UnitOutputData Default = new();
+
         public bool Result => true;
         public Unit Value => Unit.Default;
         public Exception? Error => null;
+
+        private UnitOutputData() {}
     }
 }
diff --git a/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/DumpFilePresenter.cs b/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/DumpFilePresenter.cs
deleted file mode 100644
index c3ab7c91..00000000
--- a/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/DumpFilePresenter.cs
+++ /dev/null
@@ -1,26 +0,0 @@
-using KeySwitchManager.UseCase.Commons;
-
-namespace KeySwitchManager.UseCase.KeySwitches.Dump
-{
-    public interface IDumpFilePresenter : IPresenter<DumpFileResponse>
-    {
-        public class Null : IDumpFilePresenter
-        {
-            public void Complete( DumpFileResponse response )
-            {}
-        }
-
-        public class Console : IDumpFilePresenter
-        {
-            public void Present<T>( T param )
-            {
-                System.Console.WriteLine( param );
-            }
-
-            public void Message( string message )
-            {
-                System.Console.WriteLine( message );
-            }
-        }
-    }
-}
\ No newline at end of file
diff --git a/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/DumpFileRequest.cs b/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/DumpFileRequest.cs
deleted file mode 100644
index 2dc675cc..00000000
--- a/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/DumpFileRequest.cs
+++ /dev/null
@@ -1,5 +0,0 @@
-namespace KeySwitchManager.UseCase.KeySwitches.Dump
-{
-    public class DumpFileRequest
-    {}
-}
\ No newline at end of file
diff --git a/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/DumpOutputData.cs b/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/DumpOutputData.cs
new file mode 100644
index 00000000..5ae62b0e
--- /dev/null
+++ b/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/DumpOutputData.cs
@@ -0,0 +1,11 @@
+using System;
+
+using KeySwitchManager.UseCase.Commons;
+
+namespace KeySwitchManager.UseCase.KeySwitches.Dump
+{
+    public class DumpOutputData : OutputData<DumpOutputValue>
+    {
+        public DumpOutputData( bool result, DumpOutputValue value, Exception? error = null ) : base( result, value, error ) {}
+    }
+}
diff --git a/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/DumpFileResponse.cs b/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/DumpOutputValuea.cs
similarity index 66%
rename from KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/DumpFileResponse.cs
rename to KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/DumpOutputValuea.cs
index 19c5c5ab..2afc5d4e 100644
--- a/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/DumpFileResponse.cs
+++ b/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/DumpOutputValuea.cs
@@ -1,12 +1,12 @@
 namespace KeySwitchManager.UseCase.KeySwitches.Dump
 {
-    public class DumpFileResponse
+    public class DumpOutputValue
     {
         public int DumpDataCount { get; }
 
-        public DumpFileResponse( int dumpDataCount )
+        public DumpOutputValue( int dumpDataCount )
         {
             DumpDataCount = dumpDataCount;
         }
     }
-}
\ No newline at end of file
+}
diff --git a/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/IDumpFileUseCase.cs b/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/IDumpFileUseCase.cs
deleted file mode 100644
index 821c4ff2..00000000
--- a/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/IDumpFileUseCase.cs
+++ /dev/null
@@ -1,13 +0,0 @@
-using System.Threading;
-using System.Threading.Tasks;
-
-namespace KeySwitchManager.UseCase.KeySwitches.Dump
-{
-    public interface IDumpFileUseCase
-    {
-        public DumpFileResponse Execute( DumpFileRequest request )
-            => ExecuteAsync( request ).GetAwaiter().GetResult();
-
-        public Task<DumpFileResponse> ExecuteAsync( DumpFileRequest request, CancellationToken cancellationToken = default );
-    }
-}
diff --git a/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/IDumpPresenter.cs b/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/IDumpPresenter.cs
new file mode 100644
index 00000000..619fe20d
--- /dev/null
+++ b/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/IDumpPresenter.cs
@@ -0,0 +1,6 @@
+using KeySwitchManager.UseCase.Commons;
+
+namespace KeySwitchManager.UseCase.KeySwitches.Dump
+{
+    public interface IDumpPresenter : IOutputPort<DumpOutputData> {}
+}
diff --git a/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/IDumpUseCase.cs b/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/IDumpUseCase.cs
new file mode 100644
index 00000000..fc743b78
--- /dev/null
+++ b/KeySwitchManager/Sources/Runtime/UseCases/KeySwitches/Dump/IDumpUseCase.cs
@@ -0,0 +1,6 @@
+using KeySwitchManager.UseCase.Commons;
+
+namespace KeySwitchManager.UseCase.KeySwitches.Dump
+{
+    public interface IDumpUseCase : IInputPort<UnitInputData> {}
+}