diff --git a/AutoCenter/AutoCenterBusinessLogic/BusinessLogics/PresellingWorkLogic.cs b/AutoCenter/AutoCenterBusinessLogic/BusinessLogics/PresellingWorkLogic.cs
new file mode 100644
index 0000000..cf3006b
--- /dev/null
+++ b/AutoCenter/AutoCenterBusinessLogic/BusinessLogics/PresellingWorkLogic.cs
@@ -0,0 +1,149 @@
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using AutoCenterContracts.BindingModels;
+using AutoCenterContracts.BusinessLogicsContracts;
+using AutoCenterContracts.SearchModels;
+using AutoCenterContracts.StoragesContracts;
+using AutoCenterContracts.ViewModels;
+
+namespace AutoCenterBusinessLogic.BusinessLogics
+{
+    public class PresellingWorkLogic : IPresellingWorkLogic
+    {
+        private readonly ILogger _logger;
+
+        private readonly IPresellingWorkStorage _PresellingWorkStorage;
+
+        public PresellingWorkLogic(ILogger<PresellingWorkLogic> logger, IPresellingWorkStorage PresellingWorkStorage)
+        {
+            _logger = logger;
+            _PresellingWorkStorage = PresellingWorkStorage;
+        }
+
+        public bool Create(PresellingWorkBindingModel model)
+        {
+            CheckModel(model);
+
+            if (_PresellingWorkStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+
+            return true;
+        }
+
+        public bool Delete(PresellingWorkBindingModel model)
+        {
+            CheckModel(model, false);
+
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+
+            if (_PresellingWorkStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+
+            return true;
+        }
+
+        public PresellingWorkViewModel? ReadElement(PresellingWorkSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            _logger.LogInformation("ReadElement. PresellingWork:{Name}.Id:{Id}", model.Name, model.Id);
+
+            var element = _PresellingWorkStorage.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<PresellingWorkViewModel>? ReadList(PresellingWorkSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. PresellingWork:{Name}.Id:{Id}", model.Name, model.Id);
+
+            var list = model == null ? _PresellingWorkStorage.GetFullList() : _PresellingWorkStorage.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(PresellingWorkBindingModel model)
+        {
+            CheckModel(model);
+
+            if (_PresellingWorkStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+
+            return true;
+        }
+
+        private void CheckModel(PresellingWorkBindingModel 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 предпродажной работы", nameof(model.Name));
+            }
+
+            if (model.UserId < 1)
+            {
+                throw new ArgumentNullException("Невалидный идентификатор пользователя", nameof(model.UserId));
+            }
+
+            if (string.IsNullOrEmpty(model.Description))
+            {
+                throw new ArgumentNullException("Нет описания предпродажной работы", nameof(model.Name));
+            }
+
+            _logger.LogInformation("PresellingWork. PresellingWork:{Name}.Id:{Id}", model.Name, model.Id);
+
+            var element = _PresellingWorkStorage.GetElement(new PresellingWorkSearchModel
+            {
+                Name = model.Name,
+                Description = model.Description,
+                UserId = model.UserId,
+            });
+
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Такая Предпродажная работа уже есть");
+            }
+        }
+    }
+}
diff --git a/AutoCenter/AutoCenterBusinessLogic/BusinessLogics/PurchaseLogic.cs b/AutoCenter/AutoCenterBusinessLogic/BusinessLogics/PurchaseLogic.cs
new file mode 100644
index 0000000..b627dbe
--- /dev/null
+++ b/AutoCenter/AutoCenterBusinessLogic/BusinessLogics/PurchaseLogic.cs
@@ -0,0 +1,138 @@
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using AutoCenterContracts.BindingModels;
+using AutoCenterContracts.BusinessLogicsContracts;
+using AutoCenterContracts.SearchModels;
+using AutoCenterContracts.StoragesContracts;
+using AutoCenterContracts.ViewModels;
+
+namespace AutoCenterBusinessLogic.BusinessLogics
+{
+    public class PurchaseLogic : IPurchaseLogic
+    {
+        private readonly ILogger _logger;
+
+        private readonly IPurchaseStorage _PurchaseStorage;
+
+        public PurchaseLogic(ILogger<PurchaseLogic> logger, IPurchaseStorage PurchaseStorage)
+        {
+            _logger = logger;
+            _PurchaseStorage = PurchaseStorage;
+        }
+        public bool Create(PurchaseBindingModel model)
+        {
+            CheckModel(model);
+
+            if (_PurchaseStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+
+            return true;
+        }
+        public bool Delete(PurchaseBindingModel model)
+        {
+            CheckModel(model, false);
+
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+
+            if (_PurchaseStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+
+            return true;
+        }
+        public PurchaseViewModel? ReadElement(PurchaseSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            _logger.LogInformation("ReadElement. Purchase: Id:{Id}", model.Id);
+
+            var element = _PurchaseStorage.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<PurchaseViewModel>? ReadList(PurchaseSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Purchase: Id:{Id}", model.Id);
+
+            var list = model == null ? _PurchaseStorage.GetFullList() : _PurchaseStorage.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(PurchaseBindingModel model)
+        {
+            CheckModel(model);
+
+            if (_PurchaseStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+
+            return true;
+        }
+        private void CheckModel(PurchaseBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            if (!withParams)
+            {
+                return;
+            }
+
+            if (model.ShopId < 1)
+            {
+                throw new ArgumentNullException("Некорректный идентификатор магазина", nameof(model.Id));
+            }
+            if (model.UserId < 1)
+            {
+                throw new ArgumentNullException("Некорректный идентификатор пользователя", nameof(model.Id));
+            }
+
+            _logger.LogInformation("Purchase. Purchase: Id:{Id}", model.Id);
+
+            var element = _PurchaseStorage.GetElement(new PurchaseSearchModel
+            {
+                ShopId = model.ShopId,
+                Date = model.Date,
+                IsCashPaid = model.IsCashPaid,
+                UserId = model.UserId
+            });
+
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Такая покупка уже есть");
+            }
+        }
+    }
+}
diff --git a/AutoCenter/AutoCenterBusinessLogic/BusinessLogics/ShopLogic.cs b/AutoCenter/AutoCenterBusinessLogic/BusinessLogics/ShopLogic.cs
new file mode 100644
index 0000000..66f8020
--- /dev/null
+++ b/AutoCenter/AutoCenterBusinessLogic/BusinessLogics/ShopLogic.cs
@@ -0,0 +1,138 @@
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using AutoCenterContracts.BindingModels;
+using AutoCenterContracts.BusinessLogicsContracts;
+using AutoCenterContracts.SearchModels;
+using AutoCenterContracts.StoragesContracts;
+using AutoCenterContracts.ViewModels;
+
+namespace AutoCenterBusinessLogic.BusinessLogics
+{
+    public class ShopLogic : IShopLogic
+    {
+        private readonly ILogger _logger;
+
+        private readonly IShopStorage _ShopStorage;
+
+        public ShopLogic(ILogger<ShopLogic> logger, IShopStorage ShopStorage)
+        {
+            _logger = logger;
+            _ShopStorage = ShopStorage;
+        }
+
+        public bool Create(ShopBindingModel model)
+        {
+            CheckModel(model);
+
+            if (_ShopStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+
+            return true;
+        }
+
+        public bool Delete(ShopBindingModel model)
+        {
+            CheckModel(model, false);
+
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+
+            if (_ShopStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+
+            return true;
+        }
+
+        public ShopViewModel? ReadElement(ShopSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            _logger.LogInformation("ReadElement. Shop:{Address}.Id:{Id}", model.Address, model.Id);
+
+            var element = _ShopStorage.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<ShopViewModel>? ReadList(ShopSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Shop:{Address}.Id:{Id}", model?.Address, model?.Id);
+
+            var list = model == null ? _ShopStorage.GetFullList() : _ShopStorage.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(ShopBindingModel model)
+        {
+            CheckModel(model);
+
+            if (_ShopStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+
+            return true;
+        }
+
+        private void CheckModel(ShopBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            if (!withParams)
+            {
+                return;
+            }
+
+            if (string.IsNullOrEmpty(model.Address))
+            {
+                throw new ArgumentNullException("Нет адреса магазина", nameof(model.Address));
+            }
+
+
+            _logger.LogInformation("Shop. Shop:{Address}.Id:{Id}", model.Address, model.Id);
+
+            var element = _ShopStorage.GetElement(new ShopSearchModel
+            {
+                Address = model.Address
+            });
+
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Такой магазин уже есть");
+            }
+        }
+    }
+}
diff --git a/AutoCenter/AutoCenterBusinessLogic/BusinessLogics/WishLogic.cs b/AutoCenter/AutoCenterBusinessLogic/BusinessLogics/WishLogic.cs
new file mode 100644
index 0000000..d240e36
--- /dev/null
+++ b/AutoCenter/AutoCenterBusinessLogic/BusinessLogics/WishLogic.cs
@@ -0,0 +1,149 @@
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using AutoCenterContracts.BindingModels;
+using AutoCenterContracts.BusinessLogicsContracts;
+using AutoCenterContracts.SearchModels;
+using AutoCenterContracts.StoragesContracts;
+using AutoCenterContracts.ViewModels;
+
+namespace AutoCenterBusinessLogic.BusinessLogics
+{
+    public class WishLogic : IWishLogic
+    {
+        private readonly ILogger _logger;
+
+        private readonly IWishStorage _WishStorage;
+
+        public WishLogic(ILogger<WishLogic> logger, IWishStorage WishStorage)
+        {
+            _logger = logger;
+            _WishStorage = WishStorage;
+        }
+
+        public bool Create(WishBindingModel model)
+        {
+            CheckModel(model);
+
+            if (_WishStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+
+            return true;
+        }
+
+        public bool Delete(WishBindingModel model)
+        {
+            CheckModel(model, false);
+
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+
+            if (_WishStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+
+            return true;
+        }
+
+        public WishViewModel? ReadElement(WishSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            _logger.LogInformation("ReadElement. Wish:{Name}.Id:{Id}", model.Name, model.Id);
+
+            var element = _WishStorage.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<WishViewModel>? ReadList(WishSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Wish:{Name}.Id:{Id}", model.Name, model.Id);
+
+            var list = model == null ? _WishStorage.GetFullList() : _WishStorage.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(WishBindingModel model)
+        {
+            CheckModel(model);
+
+            if (_WishStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+
+            return true;
+        }
+
+        private void CheckModel(WishBindingModel 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 пожелания", nameof(model.Name));
+            }
+
+            if (string.IsNullOrEmpty(model.Description))
+            {
+                throw new ArgumentNullException("Нет описания пожелания", nameof(model.Description));
+            }
+
+            if (model.PresellingWorkId < 1)
+            {
+                throw new ArgumentNullException("Невалидный идентификатор предпродажной работы", nameof(model.PresellingWorkId));
+            }
+
+            _logger.LogInformation("Wish. Wish:{Name}.Id:{Id}", model.Name, model.Id);
+
+            var element = _WishStorage.GetElement(new WishSearchModel
+            {
+                Name = model.Name,
+                Description = model.Description,
+                PresellingWorkId = model.PresellingWorkId
+            });
+
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Такое пожелание уже существует");
+            }
+        }
+    }
+}