diff --git a/Course/BusinessLogic/BusinessLogic/DetailLogic.cs b/Course/BusinessLogic/BusinessLogic/DetailLogic.cs
index 85666a5..43f11f0 100644
--- a/Course/BusinessLogic/BusinessLogic/DetailLogic.cs
+++ b/Course/BusinessLogic/BusinessLogic/DetailLogic.cs
@@ -19,7 +19,7 @@ namespace BusinessLogic.BusinessLogic
         }
         public List<DetailViewModel>? ReadList(DetailSearchModel? model)
         {
-            _logger.LogInformation("ReadList. DetailName:{name}. Id:{Id}", model.Name, model.Id);
+            _logger.LogInformation("ReadList. DetailName:{name}. Id:{Id}. UserId:{UserId}", model?.Name, model?.Id, model?.UserId);
             var list = model == null ? _detailStorage.GetFullList() : _detailStorage.GetFilteredList(model);
             if (list == null)
             {
diff --git a/Course/BusinessLogic/BusinessLogic/ImplementerLogic.cs b/Course/BusinessLogic/BusinessLogic/ImplementerLogic.cs
new file mode 100644
index 0000000..9bf9ddd
--- /dev/null
+++ b/Course/BusinessLogic/BusinessLogic/ImplementerLogic.cs
@@ -0,0 +1,112 @@
+using Contracts.BindingModels;
+using Contracts.BusinessLogicsContracts;
+using Contracts.SearchModels;
+using Contracts.StoragesContracts;
+using Contracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace BusinessLogic.BusinessLogic
+{
+	public class ImplementerLogic : IImplementerLogic
+	{
+		private readonly ILogger _logger;
+		private readonly IImplementerStorage _storage;
+
+		public ImplementerLogic(ILogger<ImplementerLogic> logger, IImplementerStorage storage)
+		{
+			_logger = logger;
+			_storage = storage;
+		}
+		public List<ImplementerViewModel>? ReadList(ImplementerSearchModel? model)
+		{
+			_logger.LogInformation("ReadList. Login:{Login}. Id:{Id}", model.Login, model.Id);
+			var list = model == null ? _storage.GetFullList() : _storage.GetFilteredList(model);
+			if (list == null)
+			{
+				_logger.LogWarning("ReadList return null");
+				return null;
+			}
+			return list;
+		}
+		public ImplementerViewModel? ReadElement(ImplementerSearchModel? model) 
+		{ 
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof(model));
+			}
+			_logger.LogInformation("ReadElement. Login:{Login}. Id:{Id}.", model.Login, model.Id);
+			var elem = _storage.GetElement(model);
+			if (elem == null)
+			{
+				_logger.LogWarning("ReadElement element not found");
+				return null;
+			}
+			_logger.LogInformation("ReadElement find. Id:{Id}", elem.Id);
+			return elem;
+		}
+		private void CheckModel(ImplementerBindingModel? model, bool withParams = true) 
+		{ 
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof (model));
+			}
+			if (!withParams)
+				return;
+			if (string.IsNullOrEmpty(model.Name))
+			{
+				throw new ArgumentNullException("Нет имени пользователя", nameof (model));
+			}
+			if (string.IsNullOrEmpty(model.Login))
+			{
+				throw new ArgumentNullException("Нет логина пользователя", nameof(model));
+			}
+			if (string.IsNullOrEmpty(model.Password))
+			{
+				throw new ArgumentNullException("Нет пароля пользователя", nameof(model));
+			}
+			if (string.IsNullOrEmpty(model.Email))
+			{
+				throw new ArgumentNullException("Нет почты пользователя", nameof(model));
+			}
+			var elem = _storage.GetElement(new ImplementerSearchModel
+			{
+				Login = model.Login
+			});
+			if (elem != null && model.Id != elem.Id)
+			{
+				throw new InvalidOperationException("Такой логин уже используется в системе");
+			}
+		}
+		public bool Create(ImplementerBindingModel? model)
+		{
+			CheckModel(model);
+			if (_storage.Insert(model!) == null)
+			{
+				_logger.LogWarning("Insert error");
+				return false;
+			}
+			return true;
+		}
+		public bool Update(ImplementerBindingModel? model)
+		{
+			CheckModel(model);
+			if (_storage.Update(model!) == null)
+			{
+				_logger.LogWarning("Update error");
+				return false;
+			}
+			return true;
+		}
+		public bool Delete(ImplementerBindingModel? model)
+		{
+			CheckModel(model, false);
+			_logger.LogInformation("Delete Implementer. Id:{Id}", model!.Id);
+			if (_storage.Delete(model!) == null)
+			{
+				_logger.LogWarning("Delete error");
+				return false;
+			}
+			return true;
+		}
+	}
+}
diff --git a/Course/BusinessLogic/BusinessLogic/ProductLogic.cs b/Course/BusinessLogic/BusinessLogic/ProductLogic.cs
new file mode 100644
index 0000000..04b07b0
--- /dev/null
+++ b/Course/BusinessLogic/BusinessLogic/ProductLogic.cs
@@ -0,0 +1,107 @@
+using Contracts.BindingModels;
+using Contracts.SearchModels;
+using Contracts.ViewModels;
+using Contracts.StoragesContracts;
+using Contracts.BusinessLogicsContracts;
+using Microsoft.Extensions.Logging;
+
+namespace BusinessLogic.BusinessLogic
+{
+	public class ProductLogic : IProductLogic
+	{
+		private readonly ILogger _logger;
+		private readonly IProductStorage _productStorage;
+		public ProductLogic(ILogger<ProductLogic> logger, IProductStorage productStorage)
+		{
+			_logger = logger;
+			_productStorage = productStorage;
+		}
+		public List<ProductViewModel>? ReadList(ProductSearchModel? model)
+		{
+			_logger.LogInformation("ReadList. ProductName:{name}. Id:{Id}. UserId:{UserId}", model?.Name, model?.Id, model?.UserId);
+			var list = model == null ? _productStorage.GetFullList() : _productStorage.GetFilteredList(model);
+			if (list == null)
+			{
+				_logger.LogWarning("ReadList return null list");
+				return null;
+			}
+			_logger.LogWarning("ReadList. Count:{Count}", list.Count);
+			return list;
+		}
+		public ProductViewModel? ReadElement(ProductSearchModel? model)
+		{
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof(model));
+			}
+			_logger.LogInformation("ReadElement. ProductName:{Name}. Id:{Id}", model.Name, model.Id);
+			var elem = _productStorage.GetElement(model);
+			if (elem == null)
+			{
+				_logger.LogWarning("ReadElement element not found");
+				return null;
+			}
+			_logger.LogInformation("ReadElement find. Id:{Id}", elem.Id);
+			return elem;
+		}
+		private void CheckModel(ProductBindingModel? model, bool withParams = true) 
+		{
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof(model));
+			}
+			if (!withParams)
+			{
+				return;
+			}
+			if (string.IsNullOrEmpty(model.Name))
+			{
+				throw new ArgumentNullException("Нет названия изделия", nameof(model.Name));
+			}
+			if (model.Cost <= 0)
+			{
+				throw new ArgumentNullException("Цена изделия должна быть больше 0", nameof(model.Cost));
+			}
+			_logger.LogInformation("Product. ProductName:{Name}. Cost:{Cost}. Id:{Id}", model.Name, model.Cost, model.Id);
+			var elem = _productStorage.GetElement(new ProductSearchModel
+			{
+				Name = model.Name
+			});
+			if (elem != null && elem.Id != model.Id)
+			{
+				throw new InvalidOperationException("Изделие с таким названием уже существует");
+			}
+		}
+		public bool Create(ProductBindingModel? model)
+		{
+			CheckModel(model);
+			if (_productStorage.Insert(model!) == null)
+			{
+				_logger.LogWarning("Insert error");
+				return false;
+			}
+			return true;
+		}
+		public bool Update(ProductBindingModel? model)
+		{
+			CheckModel(model);
+			if (_productStorage.Update(model!) == null)
+			{
+				_logger.LogWarning("Update error");
+				return false;
+			}
+			return true;
+		}
+		public bool Delete(ProductBindingModel? model)
+		{
+			CheckModel(model, false);
+			_logger.LogInformation("Delete Id:{Id}", model!.Id);
+			if (_productStorage.Delete(model!) == null)
+			{
+				_logger.LogWarning("Delete error");
+				return false;
+			}
+			return true;
+		}
+	}
+}
diff --git a/Course/BusinessLogic/BusinessLogic/ProductionLogic.cs b/Course/BusinessLogic/BusinessLogic/ProductionLogic.cs
new file mode 100644
index 0000000..2d72d66
--- /dev/null
+++ b/Course/BusinessLogic/BusinessLogic/ProductionLogic.cs
@@ -0,0 +1,110 @@
+using Contracts.BindingModels;
+using Contracts.BusinessLogicsContracts;
+using Contracts.SearchModels;
+using Contracts.StoragesContracts;
+using Contracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace BusinessLogic.BusinessLogic
+{
+	public class ProductionLogic : IProductionLogic
+	{
+		private readonly ILogger _logger;
+		private readonly IProductionStorage _productionStorage;
+		
+		public ProductionLogic(ILogger<ProductionLogic> logger, IProductionStorage productionStorage)
+		{
+			_logger = logger;
+			_productionStorage = productionStorage;
+		}
+		public List<ProductionViewModel>? ReadList(ProductionSearchModel? model)
+		{
+			_logger.LogInformation("ReadList. ProductionName:{name}. Id:{Id}. UserId:{UserId}", model?.Name, model?.Id, model?.UserId);
+			var list = model == null ? _productionStorage.GetFullList() : _productionStorage.GetFilteredList(model);
+			if (list == null)
+			{
+				_logger.LogWarning("ReadList return null list");
+				return null;
+			}
+			_logger.LogWarning("ReadList. Count:{Count}", list.Count);
+			return list;
+		}
+		public ProductionViewModel? ReadElement(ProductionSearchModel? model)
+		{
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof(model));
+			}
+			_logger.LogInformation("ReadElement. ProductionName:{Name}. Id:{Id}", model.Name, model.Id);
+			var elem = _productionStorage.GetElement(model);
+			if (elem == null)
+			{
+				_logger.LogWarning("ReadElement element not found");
+				return null;
+			}
+			_logger.LogInformation("ReadElement find. Id:{Id}", elem.Id);
+			return elem;
+		}
+
+
+		private void CheckModel(ProductionBindingModel? model, bool withParams = true)
+		{
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof(model));
+			}
+			if (!withParams)
+			{
+				return;
+			}
+			if (string.IsNullOrEmpty(model.Name))
+			{
+				throw new ArgumentNullException("Нет названия производства", nameof(model.Name));
+			}
+			if (model.Cost <= 0)
+			{
+				throw new ArgumentNullException("Цена производства должна быть больше 0", nameof(model.Cost));
+			}
+			_logger.LogInformation("Production. ProductionName:{Name}. Cost:{Cost}. Id:{Id}", model.Name, model.Cost, model.Id);
+			var elem = _productionStorage.GetElement(new ProductionSearchModel
+			{
+				Name = model.Name
+			});
+			if (elem != null && elem.Id != model.Id)
+			{
+				throw new InvalidOperationException("Деталь с таким названием уже существует");
+			}
+		}
+		public bool Create(ProductionBindingModel? model)
+		{
+			CheckModel(model);
+			if (_productionStorage.Insert(model!) == null)
+			{
+				_logger.LogWarning("Insert error");
+				return false;
+			}
+			return true;
+		}
+		public bool Update(ProductionBindingModel? model)
+		{
+			CheckModel(model);
+			if (_productionStorage.Update(model!) == null)
+			{
+				_logger.LogWarning("Update error");
+				return false;
+			}
+			return true;
+		}
+		public bool Delete(ProductionBindingModel? model)
+		{
+			CheckModel(model, false);
+			_logger.LogInformation("Delete Id:{Id}", model!.Id);
+			if (_productionStorage.Delete(model!) == null)
+			{
+				_logger.LogWarning("Delete error");
+				return false;
+			}
+			return true;
+		}
+	}
+}
diff --git a/Course/Contracts/BusinessLogicsContracts/IImplementerLogic.cs b/Course/Contracts/BusinessLogicsContracts/IImplementerLogic.cs
index 2923b51..1cc0acc 100644
--- a/Course/Contracts/BusinessLogicsContracts/IImplementerLogic.cs
+++ b/Course/Contracts/BusinessLogicsContracts/IImplementerLogic.cs
@@ -9,7 +9,7 @@ namespace Contracts.BusinessLogicsContracts
 		List<ImplementerViewModel>? ReadList(ImplementerSearchModel? model);
 		ImplementerViewModel? ReadElement(ImplementerSearchModel? model);
 		bool Create(ImplementerBindingModel? model);
-		bool Update(ImplementerViewModel? model);
-		bool Delete(ImplementerViewModel? model);
+		bool Update(ImplementerBindingModel? model);
+		bool Delete(ImplementerBindingModel? model);
 	}
 }
diff --git a/Course/Contracts/BusinessLogicsContracts/IProductionLogic.cs b/Course/Contracts/BusinessLogicsContracts/IProductionLogic.cs
index 16b3ae9..1efa92a 100644
--- a/Course/Contracts/BusinessLogicsContracts/IProductionLogic.cs
+++ b/Course/Contracts/BusinessLogicsContracts/IProductionLogic.cs
@@ -9,7 +9,7 @@ namespace Contracts.BusinessLogicsContracts
 		List<ProductionViewModel>? ReadList(ProductionSearchModel? model);
 		ProductionViewModel? ReadElement(ProductionSearchModel? model);
 		bool Create(ProductionBindingModel? model);
-		bool Update(ProductionViewModel? model);
-		bool Delete(ProductionViewModel? model);
+		bool Update(ProductionBindingModel? model);
+		bool Delete(ProductionBindingModel? model);
 	}
 }