diff --git a/ConfectionaryBusinessLogic/ImplementerLogic.cs b/ConfectionaryBusinessLogic/ImplementerLogic.cs
new file mode 100644
index 0000000..529c4ff
--- /dev/null
+++ b/ConfectionaryBusinessLogic/ImplementerLogic.cs
@@ -0,0 +1,123 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.BusinessLogicsContracts;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContract;
+using ConfectioneryContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace ConfectioneryBusinessLogic
+{
+	public class ImplementerLogic : IImplementerLogic
+	{
+		private readonly ILogger _logger;
+		private readonly IImplementerStorage _implementerStorage;
+		public ImplementerLogic(ILogger<ImplementerLogic> logger, IImplementerStorage implementerStorage)
+		{
+			_logger = logger;
+			_implementerStorage = implementerStorage;
+		}
+
+		public bool Create(ImplementerBindingModel model)
+		{
+			CheckModel(model);
+			if (_implementerStorage.Insert(model) == null)
+			{
+				_logger.LogWarning("Insert operation failed");
+				return false;
+			}
+			return true;
+		}
+
+		public bool Delete(ImplementerBindingModel model)
+		{
+			CheckModel(model, false);
+			_logger.LogInformation("Delete. Id:{Id}", model.Id);
+			if (_implementerStorage.Delete(model) == null)
+			{
+				_logger.LogWarning("Delete operation failed");
+				return false;
+			}
+			return true;
+		}
+
+		public ImplementerViewModel? ReadElement(ImplementerSearchModel model)
+		{
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof(model));
+			}
+			_logger.LogInformation("ReadElement. FIO:{FIO}.Id:{ Id}",
+				model.ImplementerFIO, model.Id);
+			var element = _implementerStorage.GetElement(model);
+			if (element == null)
+			{
+				_logger.LogWarning("ReadElement element not found");
+				return null;
+			}
+			_logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+			return element;
+		}
+
+		public List<ImplementerViewModel>? ReadList(ImplementerSearchModel? model)
+		{
+			_logger.LogInformation("ReadList. FIO:{FIO}.Id:{ Id} ", model?.ImplementerFIO, model?.Id);
+			var list = (model == null) ? _implementerStorage.GetFullList() :
+			_implementerStorage.GetFilteredList(model);
+			if (list == null)
+			{
+				_logger.LogWarning("ReadList return null list");
+				return null;
+			}
+			_logger.LogInformation("ReadList. Count:{Count}", list.Count);
+			return list;
+		}
+
+		public bool Update(ImplementerBindingModel model)
+		{
+			CheckModel(model);
+			if (_implementerStorage.Update(model) == null)
+			{
+				_logger.LogWarning("Update operation failed");
+				return false;
+			}
+			return true;
+		}
+
+		private void CheckModel(ImplementerBindingModel model, bool withParams = true)
+		{
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof(model));
+			}
+			if (!withParams)
+			{
+				return;
+			}
+			if (model.WorkExperience < 0)
+			{
+				throw new ArgumentException("Опыт работы не должен быть отрицательным", nameof(model.WorkExperience));
+			}
+			if (model.Qualification < 0)
+			{
+				throw new ArgumentException("Квалификация не должна быть отрицательной", nameof(model.Qualification));
+			}
+			if (string.IsNullOrEmpty(model.Password))
+			{
+				throw new ArgumentNullException("Нет пароля исполнителя", nameof(model.ImplementerFIO));
+			}
+			if (string.IsNullOrEmpty(model.ImplementerFIO))
+			{
+				throw new ArgumentNullException("Нет фио исполнителя", nameof(model.ImplementerFIO));
+			}
+			_logger.LogInformation("Implementer. Id: {Id}, FIO: {FIO}", model.Id, model.ImplementerFIO);
+			var element = _implementerStorage.GetElement(new ImplementerSearchModel
+			{
+				ImplementerFIO = model.ImplementerFIO,
+			});
+			if (element != null && element.Id != model.Id)
+			{
+				throw new InvalidOperationException("Исполнитель с таким фио уже есть");
+			}
+		}
+	}
+}