diff --git a/Orm/Xtensive.Orm/Comparison/ComparerProvider.cs b/Orm/Xtensive.Orm/Comparison/ComparerProvider.cs
index 972d8e81cb..1adec5cc24 100644
--- a/Orm/Xtensive.Orm/Comparison/ComparerProvider.cs
+++ b/Orm/Xtensive.Orm/Comparison/ComparerProvider.cs
@@ -66,10 +66,12 @@ protected override TAssociate CreateAssociate<TKey, TAssociate>(out Type foundFo
       // the comparer.
       var comparer = base.CreateAssociate<TKey, IAdvancedComparerBase>(out foundFor);
       if (foundFor == null) {
-        CoreLog.Warning(nameof(Strings.LogCantFindAssociateFor),
-          TypeSuffixes.ToDelimitedString(" \\ "),
-          typeof(TAssociate).GetShortName(),
-          typeof(TKey).GetShortName());
+        if (CoreLog.IsLogged(Orm.Logging.LogLevel.Warning)) {
+          CoreLog.Warning(nameof(Strings.LogCantFindAssociateFor),
+            TypeSuffixes.ToDelimitedString(" \\ "),
+            typeof(TAssociate).GetShortName(),
+            typeof(TKey).GetShortName());
+        }
         return null;
       }
       if (foundFor == typeof(TKey)) {
@@ -77,19 +79,23 @@ protected override TAssociate CreateAssociate<TKey, TAssociate>(out Type foundFo
       }
       associate = BaseComparerWrapperType.Activate(new[] { typeof(TKey), foundFor }, ConstructorParams) as TAssociate;
       if (associate != null) {
-        CoreLog.Warning(nameof(Strings.LogGenericAssociateIsUsedFor),
+        if (CoreLog.IsLogged(Orm.Logging.LogLevel.Warning)) {
+          CoreLog.Warning(nameof(Strings.LogGenericAssociateIsUsedFor),
           BaseComparerWrapperType.GetShortName(),
-          typeof (TKey).GetShortName(),
+          typeof(TKey).GetShortName(),
           foundFor.GetShortName(),
-          typeof (TKey).GetShortName());
+          typeof(TKey).GetShortName());
+        }
         return associate;
       }
       else {
-        CoreLog.Warning(nameof(Strings.LogGenericAssociateCreationHasFailedFor),
+        if (CoreLog.IsLogged(Orm.Logging.LogLevel.Warning)) {
+          CoreLog.Warning(nameof(Strings.LogGenericAssociateCreationHasFailedFor),
           BaseComparerWrapperType.GetShortName(),
-          typeof (TKey).GetShortName(),
+          typeof(TKey).GetShortName(),
           foundFor.GetShortName(),
-          typeof (TKey).GetShortName());
+          typeof(TKey).GetShortName());
+        }
         return null;
       }
     }
diff --git a/Orm/Xtensive.Orm/IoC/ServiceContainer.cs b/Orm/Xtensive.Orm/IoC/ServiceContainer.cs
index b29104ff7b..0574bbfbb6 100644
--- a/Orm/Xtensive.Orm/IoC/ServiceContainer.cs
+++ b/Orm/Xtensive.Orm/IoC/ServiceContainer.cs
@@ -27,7 +27,7 @@ namespace Xtensive.IoC
   [Serializable]
   public class ServiceContainer : ServiceContainerBase
   {
-    private static readonly Type typeofIServiceContainer = typeof(IServiceContainer);
+    private static readonly Type iServiceContainerType = typeof(IServiceContainer);
 
     private static readonly Func<ServiceRegistration, Pair<ConstructorInfo, ParameterInfo[]>> ConstructorFactory = serviceInfo => {
       var mappedType = serviceInfo.MappedType;
@@ -187,9 +187,9 @@ public static IServiceContainer Create(Type containerType, object configuration)
     public static IServiceContainer Create(Type containerType, object configuration, IServiceContainer parent)
     {
       ArgumentValidator.EnsureArgumentNotNull(containerType, "containerType");
-      if (!typeofIServiceContainer.IsAssignableFrom(containerType))
+      if (!iServiceContainerType.IsAssignableFrom(containerType))
         throw new ArgumentException(string.Format(
-          Strings.ExContainerTypeMustImplementX, typeofIServiceContainer.GetShortName()), "containerType");
+          Strings.ExContainerTypeMustImplementX, iServiceContainerType.Name), "containerType");
 
       Type configurationType = configuration?.GetType(),
         parentType = parent?.GetType();
diff --git a/Orm/Xtensive.Orm/Modelling/Actions/NodeAction.cs b/Orm/Xtensive.Orm/Modelling/Actions/NodeAction.cs
index 4371188a22..a3d79ae76b 100644
--- a/Orm/Xtensive.Orm/Modelling/Actions/NodeAction.cs
+++ b/Orm/Xtensive.Orm/Modelling/Actions/NodeAction.cs
@@ -105,8 +105,7 @@ public override string ToString()
     /// <returns>The name of the action.</returns>
     protected virtual string GetActionName()
     {
-      string sn = GetType().GetShortName();
-      return sn.TryCutSuffix("Action");
+      return GetType().Name.TryCutSuffix("Action");
     }
 
     /// <summary>
diff --git a/Orm/Xtensive.Orm/Modelling/Comparison/Difference.cs b/Orm/Xtensive.Orm/Modelling/Comparison/Difference.cs
index 45cf4c3562..c0f420e996 100644
--- a/Orm/Xtensive.Orm/Modelling/Comparison/Difference.cs
+++ b/Orm/Xtensive.Orm/Modelling/Comparison/Difference.cs
@@ -43,8 +43,10 @@ public abstract class Difference : IDifference
     /// <inheritdoc/>
     public override string ToString()
     {
+      var diffType = GetType();
       return string.Format(Strings.DifferenceFormat,
-        GetType().GetShortName(), Source, Target, ParametersToString());
+        diffType.IsGenericType ? diffType.GetShortName() : diffType.Name,
+        Source, Target, ParametersToString());
     }
 
     /// <summary>
diff --git a/Orm/Xtensive.Orm/Modelling/Comparison/Upgrader.cs b/Orm/Xtensive.Orm/Modelling/Comparison/Upgrader.cs
index 4ef401af48..ac08660c5c 100644
--- a/Orm/Xtensive.Orm/Modelling/Comparison/Upgrader.cs
+++ b/Orm/Xtensive.Orm/Modelling/Comparison/Upgrader.cs
@@ -160,18 +160,20 @@ public IReadOnlyList<NodeAction> GetUpgradeSequence(Difference difference, HintS
             .ForEach(validationHints.Add);
           var diff = comparer.Compare(CurrentModel, TargetModel, validationHints);
           if (diff != null) {
-            using (CoreLog.InfoRegion(nameof(Strings.LogAutomaticUpgradeSequenceValidation))) {
-              CoreLog.Info(nameof(Strings.LogValidationFailed));
-              CoreLog.Info(nameof(Strings.LogItemFormat), Strings.Difference);
-              CoreLog.Info(diff.ToString());
-              CoreLog.Info(Strings.LogItemFormat + "\r\n{1}", Strings.UpgradeSequence,
-                new ActionSequence() { actions });
-              CoreLog.Info(nameof(Strings.LogItemFormat), Strings.ExpectedTargetModel);
-              TargetModel.Dump();
-              CoreLog.Info(nameof(Strings.LogItemFormat), Strings.ActualTargetModel);
-              CurrentModel.Dump();
-              throw new InvalidOperationException(Strings.ExUpgradeSequenceValidationFailure);
+            if (CoreLog.IsLogged(Orm.Logging.LogLevel.Info)) {
+              using (CoreLog.InfoRegion(nameof(Strings.LogAutomaticUpgradeSequenceValidation))) {
+                CoreLog.Info(nameof(Strings.LogValidationFailed));
+                CoreLog.Info(nameof(Strings.LogItemFormat), Strings.Difference);
+                CoreLog.Info(diff.ToString());
+                CoreLog.Info(Strings.LogItemFormat + "\r\n{1}", Strings.UpgradeSequence,
+                  new ActionSequence() { actions });
+                CoreLog.Info(nameof(Strings.LogItemFormat), Strings.ExpectedTargetModel);
+                TargetModel.Dump();
+                CoreLog.Info(nameof(Strings.LogItemFormat), Strings.ActualTargetModel);
+                CurrentModel.Dump();
+              }
             }
+            throw new InvalidOperationException(Strings.ExUpgradeSequenceValidationFailure);
           }
 
           return new ReadOnlyCollection<NodeAction>(actions.Actions.ToArray());
diff --git a/Orm/Xtensive.Orm/Orm/Building/Builders/DomainBuilder.cs b/Orm/Xtensive.Orm/Orm/Building/Builders/DomainBuilder.cs
index 76cf642fde..74cd2ddbb7 100644
--- a/Orm/Xtensive.Orm/Orm/Building/Builders/DomainBuilder.cs
+++ b/Orm/Xtensive.Orm/Orm/Building/Builders/DomainBuilder.cs
@@ -33,7 +33,7 @@ public static Domain Run(DomainBuilderConfiguration builderConfiguration)
       ArgumentValidator.EnsureArgumentNotNull(builderConfiguration, nameof(builderConfiguration));
 
       var context = new BuildingContext(builderConfiguration);
-      using (BuildLog.InfoRegion(nameof(Strings.LogBuildingX), typeof(Domain).GetShortName())) {
+      using (BuildLog.InfoRegion(nameof(Strings.LogBuildingX), typeof(Domain).Name)) {
         new DomainBuilder(context).Run();
       }
 
@@ -51,7 +51,7 @@ private void Run()
 
     private void CreateDomain()
     {
-      using (BuildLog.InfoRegion(nameof(Strings.LogCreatingX), typeof(Domain).GetShortName())) {
+      using (BuildLog.InfoRegion(nameof(Strings.LogCreatingX), typeof(Domain).Name)) {
         var services = context.BuilderConfiguration.Services;
         var useSingleConnection =
           services.ProviderInfo.Supports(ProviderFeatures.SingleConnection)
@@ -69,7 +69,7 @@ private void CreateHandlers()
       var handlers = context.Domain.Handlers;
       var services = context.BuilderConfiguration.Services;
 
-      using (BuildLog.InfoRegion(nameof(Strings.LogCreatingX), typeof(DomainHandler).GetShortName())) {
+      using (BuildLog.InfoRegion(nameof(Strings.LogCreatingX), typeof(DomainHandler).Name)) {
         // HandlerFactory
         handlers.Factory = services.HandlerFactory;
 
@@ -93,7 +93,7 @@ private void CreateHandlers()
 
     private void CreateServices()
     {
-      using (BuildLog.InfoRegion(nameof(Strings.LogCreatingX), typeof(IServiceContainer).GetShortName())) {
+      using (BuildLog.InfoRegion(nameof(Strings.LogCreatingX), typeof(IServiceContainer).Name)) {
         var domain = context.Domain;
         var configuration = domain.Configuration;
         var userContainerType = configuration.ServiceContainerType ?? typeof(ServiceContainer);
diff --git a/Orm/Xtensive.Orm/Orm/Building/Builders/StorageMappingBuilder.cs b/Orm/Xtensive.Orm/Orm/Building/Builders/StorageMappingBuilder.cs
index 41bb3b3d71..9ad2d578e5 100644
--- a/Orm/Xtensive.Orm/Orm/Building/Builders/StorageMappingBuilder.cs
+++ b/Orm/Xtensive.Orm/Orm/Building/Builders/StorageMappingBuilder.cs
@@ -92,17 +92,18 @@ private void ProcessAll()
 
       foreach (var type in typesToProcess) {
         var underlyingType = type.UnderlyingType;
-        if (verbose)
+        if (verbose && BuildLog.IsLogged(LogLevel.Info)) {
           BuildLog.Info(nameof(Strings.LogProcessingX), underlyingType.GetShortName());
+        }
         var request = new MappingRequest(underlyingType.Assembly, underlyingType.Namespace);
-        MappingResult result;
-        if (!mappingCache.TryGetValue(request, out result)) {
+        if (!mappingCache.TryGetValue(request, out var result)) {
           result = Process(underlyingType);
           mappingCache.Add(request, result);
         }
         else {
-          if (verbose)
+          if (verbose && BuildLog.IsLogged(LogLevel.Info)) {
             BuildLog.Info(nameof(Strings.LogReusingCachedMappingInformationForX), underlyingType.GetShortName());
+          }
         }
         type.MappingDatabase = result.MappingDatabase;
         type.MappingSchema = result.MappingSchema;
@@ -116,8 +117,9 @@ private MappingResult Process(Type type)
       var resultDatabase = !string.IsNullOrEmpty(rule.Database) ? rule.Database : defaultDatabase;
       var resultSchema = !string.IsNullOrEmpty(rule.Schema) ? rule.Schema : defaultSchema;
 
-      if (verbose)
+      if (verbose && BuildLog.IsLogged(LogLevel.Info)) {
         BuildLog.Info(nameof(Strings.ApplyingRuleXToY), rule, type.GetShortName());
+      }
 
       return new MappingResult(resultDatabase, resultSchema);
     }
diff --git a/Orm/Xtensive.Orm/Orm/Key.cs b/Orm/Xtensive.Orm/Orm/Key.cs
index 3c3b604d3f..893febf90f 100644
--- a/Orm/Xtensive.Orm/Orm/Key.cs
+++ b/Orm/Xtensive.Orm/Orm/Key.cs
@@ -305,15 +305,16 @@ public static Key Parse([NotNull] Domain domain, string source)
     /// <inheritdoc/>
     public override string ToString()
     {
+      var underlyingType = TypeInfo?.UnderlyingType ?? TypeReference.Type.UnderlyingType;
       if (TypeInfo!=null)
         return string.Format(
           Strings.KeyFormat,
-          TypeInfo.UnderlyingType.GetShortName(),
+          underlyingType.IsGenericType || underlyingType.IsNested ? underlyingType.GetShortName() : underlyingType.Name,
           Value.ToRegular());
 
       return string.Format(
         Strings.KeyFormatUnknownKeyType,
-        TypeReference.Type.UnderlyingType.GetShortName(),
+        underlyingType.IsGenericType || underlyingType.IsNested ? underlyingType.GetShortName() : underlyingType.Name,
         Value.ToRegular());
     }
 
diff --git a/Orm/Xtensive.Orm/Orm/Linq/TranslatorContext.cs b/Orm/Xtensive.Orm/Orm/Linq/TranslatorContext.cs
index 3bc40cc686..9635476cdb 100644
--- a/Orm/Xtensive.Orm/Orm/Linq/TranslatorContext.cs
+++ b/Orm/Xtensive.Orm/Orm/Linq/TranslatorContext.cs
@@ -80,7 +80,8 @@ public ApplyParameter GetApplyParameter(CompilableProvider provider)
     {
       ApplyParameter parameter;
       if (!applyParameters.TryGetValue(provider, out parameter)) {
-        parameter = new ApplyParameter(provider.GetType().GetShortName());
+        var providerType = provider.GetType();
+        parameter = new ApplyParameter(providerType.IsGenericType ? providerType.GetShortName() : providerType.Name);
         // parameter = new ApplyParameter(provider.ToString()); 
         // ENABLE ONLY FOR DEBUGGING! 
         // May lead TO entity.ToString() calls, while ToString can be overriden.
diff --git a/Orm/Xtensive.Orm/Orm/Model/Node.cs b/Orm/Xtensive.Orm/Orm/Model/Node.cs
index aad20f0b83..5dd5521a68 100644
--- a/Orm/Xtensive.Orm/Orm/Model/Node.cs
+++ b/Orm/Xtensive.Orm/Orm/Model/Node.cs
@@ -92,8 +92,11 @@ public virtual void UpdateState()
     /// <inheritdoc/>
     public override string ToString()
     {
-      return string.Format(Strings.NodeFormat, 
-        name ?? Strings.UnnamedNodeDisplayName, GetType().GetShortName());
+      var type = GetType();
+
+      return string.Format(Strings.NodeFormat,
+        name ?? Strings.UnnamedNodeDisplayName,
+        type.IsGenericType ? type.GetShortName() : type.Name);
     }
 
 
diff --git a/Orm/Xtensive.Orm/Orm/Rse/Providers/Provider.cs b/Orm/Xtensive.Orm/Orm/Rse/Providers/Provider.cs
index 1d2eb45d99..abab50d87c 100644
--- a/Orm/Xtensive.Orm/Orm/Rse/Providers/Provider.cs
+++ b/Orm/Xtensive.Orm/Orm/Rse/Providers/Provider.cs
@@ -60,7 +60,12 @@ private set {
     protected abstract RecordSetHeader BuildHeader();
 
     private string DebuggerDisplayName {
-      get { return GetType().GetShortName(); }
+      get {
+        var type = GetType();
+        return type.IsGenericType
+          ? type.GetShortName()
+          : type.Name;
+      }
     }
 
     /// <summary>
@@ -98,8 +103,9 @@ private void AppendTitleTo(StringBuilder sb, int indent)
     private string TitleToString()
     {
       var sb = new StringBuilder();
-      string providerName = GetType().GetShortName().TryCutSuffix(ToString_ProviderTypeSuffix);
-      string parameters = ParametersToString();
+      var type = GetType();
+      var providerName = (type.IsGenericType ? type.GetShortName() : type.Name).TryCutSuffix(ToString_ProviderTypeSuffix);
+      var parameters = ParametersToString();
 
       sb.Append(providerName);
       if (!parameters.IsNullOrEmpty())
diff --git a/Orm/Xtensive.Orm/Orm/Upgrade/UpgradingDomainBuilder.cs b/Orm/Xtensive.Orm/Orm/Upgrade/UpgradingDomainBuilder.cs
index 98e91c2910..3abe3670f5 100644
--- a/Orm/Xtensive.Orm/Orm/Upgrade/UpgradingDomainBuilder.cs
+++ b/Orm/Xtensive.Orm/Orm/Upgrade/UpgradingDomainBuilder.cs
@@ -362,7 +362,7 @@ where handler.IsEnabled
         var candidates = group.ToList();
         if (candidates.Count > 1) {
           throw new DomainBuilderException(
-            string.Format(Strings.ExMoreThanOneEnabledXIsProvidedForAssemblyY, typeof (IUpgradeHandler).GetShortName(), @group.Key));
+            string.Format(Strings.ExMoreThanOneEnabledXIsProvidedForAssemblyY, typeof(IUpgradeHandler).Name, @group.Key));
         }
         handlers.Add(group.Key, candidates[0]);
       }
@@ -398,12 +398,12 @@ private static void BuildFullTextCatalogResolver(UpgradeServiceAccessor serviceA
       //Getting user resolvers
       var candidates = from r in serviceContainer.GetAll<IFullTextCatalogNameBuilder>()
         let assembly = r.GetType().Assembly
-        where r.IsEnabled && assembly!=typeof (IFullTextCatalogNameBuilder).Assembly
+        where r.IsEnabled && assembly!=typeof(IFullTextCatalogNameBuilder).Assembly
         select r;
 
       var userResolversCount = candidates.Count();
       if (userResolversCount > 1)
-        throw new DomainBuilderException(string.Format(Strings.ExMoreThanOneEnabledXIsProvided, typeof (IFullTextCatalogNameBuilder).GetShortName()));
+        throw new DomainBuilderException(string.Format(Strings.ExMoreThanOneEnabledXIsProvided, typeof(IFullTextCatalogNameBuilder).Name));
 
       var resolver = (userResolversCount==0)
         ? new FullTextCatalogNameBuilder()
diff --git a/Orm/Xtensive.Orm/Reflection/DelegateHelper.cs b/Orm/Xtensive.Orm/Reflection/DelegateHelper.cs
index 8d6f7106ca..88fe84a71c 100644
--- a/Orm/Xtensive.Orm/Reflection/DelegateHelper.cs
+++ b/Orm/Xtensive.Orm/Reflection/DelegateHelper.cs
@@ -357,7 +357,7 @@ public static TDelegate CreateDelegate<TDelegate>(object callTarget, Type type,
       Type delegateType = typeof (TDelegate);
       if (!WellKnownTypes.Delegate.IsAssignableFrom(delegateType))
         throw new ArgumentException(string.Format(Strings.ExGenericParameterShouldBeOfTypeT,
-          "TDelegate", WellKnownTypes.Delegate.GetShortName()));
+          "TDelegate", WellKnownTypes.Delegate.Name));
 
       BindingFlags bindingFlags =
         BindingFlags.Public |
@@ -404,7 +404,7 @@ public static TDelegate[] CreateDelegates<TDelegate>(object callTarget, Type typ
       Type delegateType = typeof (TDelegate);
       if (!WellKnownTypes.Delegate.IsAssignableFrom(delegateType))
         throw new ArgumentException(string.Format(Strings.ExGenericParameterShouldBeOfTypeT,
-          "TDelegate", WellKnownTypes.Delegate.GetShortName()));
+          "TDelegate", WellKnownTypes.Delegate.Name));
 
       int count = genericArgumentVariants.Count;
       TDelegate[] delegates = new TDelegate[count];
diff --git a/Orm/Xtensive.Orm/Tuples/Transform/CombineTransform.cs b/Orm/Xtensive.Orm/Tuples/Transform/CombineTransform.cs
index e1a9f3096f..210fa33d2d 100644
--- a/Orm/Xtensive.Orm/Tuples/Transform/CombineTransform.cs
+++ b/Orm/Xtensive.Orm/Tuples/Transform/CombineTransform.cs
@@ -47,9 +47,7 @@ public IReadOnlyList<TupleDescriptor> Sources
     public override string ToString()
     {
       string description = $"{sources.ToDelimitedString(" + ")}, {(IsReadOnly ? Strings.ReadOnlyShort : Strings.ReadWriteShort)}";
-      return string.Format(Strings.TupleTransformFormat, 
-        GetType().GetShortName(), 
-        description);
+      return string.Format(Strings.TupleTransformFormat, GetType().Name, description);
     }
 
 
diff --git a/Orm/Xtensive.Orm/Tuples/Transform/CutInTransform.cs b/Orm/Xtensive.Orm/Tuples/Transform/CutInTransform.cs
index c69285f892..222374fe97 100644
--- a/Orm/Xtensive.Orm/Tuples/Transform/CutInTransform.cs
+++ b/Orm/Xtensive.Orm/Tuples/Transform/CutInTransform.cs
@@ -49,8 +49,7 @@ public IReadOnlyList<TupleDescriptor> Sources
     public override string ToString()
     {
       string description = $"{sources.ToDelimitedString(" + ")}, {(IsReadOnly ? Strings.ReadOnlyShort : Strings.ReadWriteShort)}";
-      return string.Format(Strings.TupleTransformFormat,
-        GetType().GetShortName(),
+      return string.Format(Strings.TupleTransformFormat, GetType().Name,
         description);
     }
 
diff --git a/Orm/Xtensive.Orm/Tuples/Transform/CutOutTransform.cs b/Orm/Xtensive.Orm/Tuples/Transform/CutOutTransform.cs
index ab3a584a96..34dfd1247e 100644
--- a/Orm/Xtensive.Orm/Tuples/Transform/CutOutTransform.cs
+++ b/Orm/Xtensive.Orm/Tuples/Transform/CutOutTransform.cs
@@ -40,9 +40,7 @@ public Segment<int> Segment
     public override string ToString()
     {
       string description = $"{segment}, {(IsReadOnly ? Strings.ReadOnlyShort : Strings.ReadWriteShort)}";
-      return string.Format(Strings.TupleTransformFormat,
-        GetType().GetShortName(),
-        description);
+      return string.Format(Strings.TupleTransformFormat, GetType().Name, description);
     }
 
 
diff --git a/Orm/Xtensive.Orm/Tuples/Transform/MapTransform.cs b/Orm/Xtensive.Orm/Tuples/Transform/MapTransform.cs
index affb658db0..0bed3c1f94 100644
--- a/Orm/Xtensive.Orm/Tuples/Transform/MapTransform.cs
+++ b/Orm/Xtensive.Orm/Tuples/Transform/MapTransform.cs
@@ -256,9 +256,7 @@ protected Tuple Apply(TupleTransformType transformType, Tuple source1, Tuple sou
     public override string ToString()
     {
       string description = $"{SourceCount}: {(SourceCount == 1 ? singleSourceMap.ToCommaDelimitedString() : map.ToCommaDelimitedString())}, {(isReadOnly ? Strings.ReadOnlyShort : Strings.ReadWriteShort)}";
-      return string.Format(Strings.TupleTransformFormat, 
-        GetType().GetShortName(), 
-        description);
+      return string.Format(Strings.TupleTransformFormat, GetType().Name, description);
     }
 
     
diff --git a/Orm/Xtensive.Orm/Tuples/Transform/SegmentTransform.cs b/Orm/Xtensive.Orm/Tuples/Transform/SegmentTransform.cs
index 189385587e..4f04b02d50 100644
--- a/Orm/Xtensive.Orm/Tuples/Transform/SegmentTransform.cs
+++ b/Orm/Xtensive.Orm/Tuples/Transform/SegmentTransform.cs
@@ -39,9 +39,7 @@ public Segment<int> Segment
     public override string ToString()
     {
       string description = $"{segment}, {(IsReadOnly ? Strings.ReadOnlyShort : Strings.ReadWriteShort)}";
-      return string.Format(Strings.TupleTransformFormat, 
-        GetType().GetShortName(), 
-        description);
+      return string.Format(Strings.TupleTransformFormat, GetType().Name, description);
     }
 
 
diff --git a/Orm/Xtensive.Orm/Tuples/Transform/TupleTransformBase.cs b/Orm/Xtensive.Orm/Tuples/Transform/TupleTransformBase.cs
index 5a3435ef3f..00e2419167 100644
--- a/Orm/Xtensive.Orm/Tuples/Transform/TupleTransformBase.cs
+++ b/Orm/Xtensive.Orm/Tuples/Transform/TupleTransformBase.cs
@@ -50,7 +50,8 @@ public virtual bool IsReadOnly {
     /// <inheritdoc/>
     public override string ToString()
     {
-      return GetType().GetShortName();
+      var type = GetType();
+      return type.IsGenericType ? type.GetShortName() : type.Name;
     }
   }
 }
\ No newline at end of file