diff --git a/JewelryStore/Program.cs b/JewelryStore/Program.cs
index 344d316..1f9567f 100644
--- a/JewelryStore/Program.cs
+++ b/JewelryStore/Program.cs
@@ -49,6 +49,7 @@ namespace JewelryStore
             services.AddTransient<IJewelLogic, JewelLogic>();
             services.AddTransient<IClientLogic, ClientLogic>();
             services.AddTransient<IReportLogic, ReportLogic>();
+            services.AddTransient<IImplementerLogic, ImplementerLogic>();
 
             services.AddTransient<AbstractSaveToExcel, SaveToExcel>();
             services.AddTransient<AbstractSaveToWord, SaveToWord>();
diff --git a/JewelryStoreBusinessLogic/BusinessLogics/ImplementerLogic.cs b/JewelryStoreBusinessLogic/BusinessLogics/ImplementerLogic.cs
new file mode 100644
index 0000000..5f2dfdd
--- /dev/null
+++ b/JewelryStoreBusinessLogic/BusinessLogics/ImplementerLogic.cs
@@ -0,0 +1,130 @@
+using JewelryStoreContracts.BindingModels;
+using JewelryStoreContracts.BusinessLogicsContracts;
+using JewelryStoreContracts.SearchModels;
+using JewelryStoreContracts.StoragesContracts;
+using JewelryStoreContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace JewelryStoreBusinessLogic.BusinessLogics
+{
+    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");
+            }
+        }
+    }
+}
diff --git a/JewelryStoreContracts/SearchModels/ImplementerSearchModel.cs b/JewelryStoreContracts/SearchModels/ImplementerSearchModel.cs
index 49b0f7c..72d4a52 100644
--- a/JewelryStoreContracts/SearchModels/ImplementerSearchModel.cs
+++ b/JewelryStoreContracts/SearchModels/ImplementerSearchModel.cs
@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace JewelryStoreContracts.SearchModels
 {
-    public interface ImplementerSearchModel
+    public class ImplementerSearchModel
     {
         public int? Id { get; set; }