diff --git a/ConstructionCompany/ConstructionCompanyBusiness/BusinessLogics/EmployeeLogic.cs b/ConstructionCompany/ConstructionCompanyBusiness/BusinessLogics/EmployeeLogic.cs
new file mode 100644
index 0000000..2066fe3
--- /dev/null
+++ b/ConstructionCompany/ConstructionCompanyBusiness/BusinessLogics/EmployeeLogic.cs
@@ -0,0 +1,106 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.BusinessLogicContracts;
+using ConstructionCompanyContracts.SearchModels;
+using ConstructionCompanyContracts.StorageContracts;
+using ConstructionCompanyContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyBusinessLogic.BusinessLogics
+{
+    public class EmployeeLogic : IEmployeeLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IEmployeeStorage _employeeStorage;
+
+        public EmployeeLogic(ILogger<EmployeeLogic> logger, IEmployeeStorage employeeStorage)
+        {
+            _logger = logger;
+            _employeeStorage = employeeStorage;
+        }
+
+        public List<EmployeeViewModel>? ReadList(EmployeeSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. EmployeeName:{EmployeeName}. Id:{Id}", model?.EmployeeName, model?.Id);
+            var list = model == null ? _employeeStorage.GetFullList() : _employeeStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public EmployeeViewModel? ReadElement(EmployeeSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. EmployeeName:{EmployeeName}. Id:{Id}", model.EmployeeName, model.Id);
+            var element = _employeeStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(EmployeeBindingModel model)
+        {
+            CheckModel(model);
+            if (_employeeStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(EmployeeBindingModel model)
+        {
+            CheckModel(model);
+            if (_employeeStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Delete(EmployeeBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_employeeStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(EmployeeBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.EmployeeName))
+            {
+                throw new ArgumentNullException("Нет названия материала", nameof(model.EmployeeName));
+            }
+            _logger.LogInformation("Employee. EmployeeName:{EmployeeName}. PositionID:{PositionID}. Id:{Id}", model.EmployeeName, model.PositionID, model.Id);
+        }
+    }
+}
diff --git a/ConstructionCompany/ConstructionCompanyBusiness/BusinessLogics/EmployeeOrderLogic.cs b/ConstructionCompany/ConstructionCompanyBusiness/BusinessLogics/EmployeeOrderLogic.cs
new file mode 100644
index 0000000..2afa4c2
--- /dev/null
+++ b/ConstructionCompany/ConstructionCompanyBusiness/BusinessLogics/EmployeeOrderLogic.cs
@@ -0,0 +1,92 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.BusinessLogicContracts;
+using ConstructionCompanyContracts.SearchModels;
+using ConstructionCompanyContracts.StorageContracts;
+using ConstructionCompanyContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyBusinessLogic.BusinessLogics
+{
+    public class EmployeeOrderLogic : IEmployeeOrderLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IEmployeeOrderStorage _employeeOrderStorage;
+
+        public EmployeeOrderLogic(ILogger<EmployeeOrderLogic> logger, IEmployeeOrderStorage employeeOrderStorage)
+        {
+            _logger = logger;
+            _employeeOrderStorage = employeeOrderStorage;
+        }
+
+        public List<EmployeeOrderViewModel>? ReadList(EmployeeOrderSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. EmployeeId:{EmployeeId}. OrderId:{OrderId}", model?.EmployeeId, model?.OrderId);
+            var list = model == null ? _employeeOrderStorage.GetFullList() : _employeeOrderStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public EmployeeOrderViewModel? ReadElement(EmployeeOrderSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadList. EmployeeId:{EmployeeId}. OrderId:{OrderId}", model?.EmployeeId, model?.OrderId);
+            var element = _employeeOrderStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. EmployeeId:{EmployeeId}. OrderId:{OrderId}", model?.EmployeeId, model?.OrderId);
+            return element;
+        }
+
+        public bool Create(EmployeeOrderBindingModel model)
+        {
+            CheckModel(model);
+            if (_employeeOrderStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(EmployeeOrderBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. EmployeeId:{EmployeeId}. OrderId:{OrderId}", model?.EmployeeId, model?.OrderId);
+            if (_employeeOrderStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(EmployeeOrderBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            _logger.LogInformation("EmployeeOrder. EmployeeId:{EmployeeId}. OrderId:{OrderId}", model?.EmployeeId, model?.OrderId);
+        }
+    }
+}
diff --git a/ConstructionCompany/ConstructionCompanyBusiness/BusinessLogics/MaterialOrderLogic.cs b/ConstructionCompany/ConstructionCompanyBusiness/BusinessLogics/MaterialOrderLogic.cs
new file mode 100644
index 0000000..03f9444
--- /dev/null
+++ b/ConstructionCompany/ConstructionCompanyBusiness/BusinessLogics/MaterialOrderLogic.cs
@@ -0,0 +1,96 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.BusinessLogicContracts;
+using ConstructionCompanyContracts.SearchModels;
+using ConstructionCompanyContracts.StorageContracts;
+using ConstructionCompanyContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyBusinessLogic.BusinessLogics
+{
+    public class MaterialOrderLogic : IMaterialOrderLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IMaterialOrderStorage _employeeOrderStorage;
+
+        public MaterialOrderLogic(ILogger<MaterialOrderLogic> logger, IMaterialOrderStorage employeeOrderStorage)
+        {
+            _logger = logger;
+            _employeeOrderStorage = employeeOrderStorage;
+        }
+
+        public List<MaterialOrderViewModel>? ReadList(MaterialOrderSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. MaterialId:{MaterialId}. OrderId:{OrderId}", model?.MaterialId, model?.OrderId);
+            var list = model == null ? _employeeOrderStorage.GetFullList() : _employeeOrderStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public MaterialOrderViewModel? ReadElement(MaterialOrderSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadList. MaterialId:{MaterialId}. OrderId:{OrderId}", model?.MaterialId, model?.OrderId);
+            var element = _employeeOrderStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. MaterialId:{MaterialId}. OrderId:{OrderId}", model?.MaterialId, model?.OrderId);
+            return element;
+        }
+
+        public bool Create(MaterialOrderBindingModel model)
+        {
+            CheckModel(model);
+            if (_employeeOrderStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(MaterialOrderBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. MaterialId:{MaterialId}. OrderId:{OrderId}", model?.MaterialId, model?.OrderId);
+            if (_employeeOrderStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(MaterialOrderBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (model.Quantity <= 0)
+            {
+                throw new InvalidOperationException("Количество должна быть больше 0!");
+            }
+            _logger.LogInformation("MaterialOrder. MaterialId:{MaterialId}. OrderId:{OrderId}", model?.MaterialId, model?.OrderId);
+        }
+    }
+}
diff --git a/ConstructionCompany/ConstructionCompanyBusiness/BusinessLogics/OrderLogic.cs b/ConstructionCompany/ConstructionCompanyBusiness/BusinessLogics/OrderLogic.cs
new file mode 100644
index 0000000..fee1795
--- /dev/null
+++ b/ConstructionCompany/ConstructionCompanyBusiness/BusinessLogics/OrderLogic.cs
@@ -0,0 +1,121 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.BusinessLogicContracts;
+using ConstructionCompanyContracts.SearchModels;
+using ConstructionCompanyContracts.StorageContracts;
+using ConstructionCompanyContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyBusinessLogic.BusinessLogics
+{
+    public class OrderLogic : IOrderLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IOrderStorage _orderStorage;
+
+        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage)
+        {
+            _logger = logger;
+            _orderStorage = orderStorage;
+        }
+
+        public List<OrderViewModel>? ReadList(OrderSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Adress:{Adress}. Id:{Id}", model?.Id);
+            var list = model == null ? _orderStorage.GetFullList() : _orderStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public OrderViewModel? ReadElement(OrderSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Id:{Id}", model.Id);
+            var element = _orderStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool CreateOrder(OrderBindingModel model)
+        {
+            CheckModel(model);
+            model.Status = ConstructionCompanyDataModels.Enums.OrderStatus.Принят;
+            if (_orderStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool TakeOrderInWork(OrderBindingModel model)
+        {
+            CheckModel(model);
+            model.Status = ConstructionCompanyDataModels.Enums.OrderStatus.Выполняется;
+            if (_orderStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool FinishOrder(OrderBindingModel model)
+        {
+            CheckModel(model);
+            model.Status = ConstructionCompanyDataModels.Enums.OrderStatus.Завершён;
+            model.DateEnd = DateTime.Now;
+            if (_orderStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(OrderBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Description))
+            {
+                throw new ArgumentNullException("Нет описания заказа", nameof(model.Description));
+            }
+            if (string.IsNullOrEmpty(model.Adress))
+            {
+                throw new ArgumentNullException("Нет адреса заказа", nameof(model.Adress));
+            }
+            if (model.Price <= 0)
+            {
+                throw new InvalidOperationException("Цена должна быть больше 0!");
+            }
+            if (string.IsNullOrEmpty(model.CustomerNumber))
+            {
+                throw new ArgumentNullException("Нет телефона", nameof(model.CustomerNumber));
+            }
+            
+            _logger.LogInformation("Order. Description:{Description}. Adress:{Adress}. Price:{Price} Id:{Id}", model.Description, model.Adress, model.Price, model.Id);
+        }
+    }
+}
diff --git a/ConstructionCompany/ConstructionCompanyBusiness/BusinessLogics/PositionLogic.cs b/ConstructionCompany/ConstructionCompanyBusiness/BusinessLogics/PositionLogic.cs
new file mode 100644
index 0000000..ec60b8e
--- /dev/null
+++ b/ConstructionCompany/ConstructionCompanyBusiness/BusinessLogics/PositionLogic.cs
@@ -0,0 +1,110 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.BusinessLogicContracts;
+using ConstructionCompanyContracts.SearchModels;
+using ConstructionCompanyContracts.StorageContracts;
+using ConstructionCompanyContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyBusinessLogic.BusinessLogics
+{
+    public class PositionLogic : IPositionLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IPositionStorage _positionStorage;
+
+        public PositionLogic(ILogger<PositionLogic> logger, IPositionStorage positionStorage)
+        {
+            _logger = logger;
+            _positionStorage = positionStorage;
+        }
+
+        public List<PositionViewModel>? ReadList(PositionSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. PositionName:{PositionName}. Id:{Id}", model?.PositionName, model?.Id);
+            var list = model == null ? _positionStorage.GetFullList() : _positionStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public PositionViewModel? ReadElement(PositionSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. PositionName:{PositionName}. Id:{Id}", model.PositionName, model.Id);
+            var element = _positionStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(PositionBindingModel model)
+        {
+            CheckModel(model);
+            if (_positionStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(PositionBindingModel model)
+        {
+            CheckModel(model);
+            if (_positionStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Delete(PositionBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_positionStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(PositionBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.PositionName))
+            {
+                throw new ArgumentNullException("Нет названия материала", nameof(model.PositionName));
+            }
+            if (model.Salary < 0)
+            {
+                throw new ArgumentNullException("Зарплата должна быть не меньше 0!", nameof(model.Salary));
+            }
+            _logger.LogInformation("Position. IngredietnName:{PositionName}. Salary:{Salary}. Id:{Id}", model.PositionName, model.Salary, model.Id);
+        }
+    }
+}
diff --git a/ConstructionCompany/ConstructionCompanyContracts/BusinessLogicContracts/IEmployeeOrderLogic.cs b/ConstructionCompany/ConstructionCompanyContracts/BusinessLogicContracts/IEmployeeOrderLogic.cs
index f16df49..9a1f30c 100644
--- a/ConstructionCompany/ConstructionCompanyContracts/BusinessLogicContracts/IEmployeeOrderLogic.cs
+++ b/ConstructionCompany/ConstructionCompanyContracts/BusinessLogicContracts/IEmployeeOrderLogic.cs
@@ -14,7 +14,6 @@ namespace ConstructionCompanyContracts.BusinessLogicContracts
         List<EmployeeOrderViewModel>? ReadList(EmployeeOrderSearchModel? model);
         EmployeeOrderViewModel? ReadElement(EmployeeOrderSearchModel model);
         bool Create(EmployeeOrderBindingModel model);
-        bool Update(EmployeeOrderBindingModel model);
         bool Delete(EmployeeOrderBindingModel model);
     }
 }
diff --git a/ConstructionCompany/ConstructionCompanyContracts/BusinessLogicContracts/IMaterialOrderLogic.cs b/ConstructionCompany/ConstructionCompanyContracts/BusinessLogicContracts/IMaterialOrderLogic.cs
index cced54a..d1dbd6d 100644
--- a/ConstructionCompany/ConstructionCompanyContracts/BusinessLogicContracts/IMaterialOrderLogic.cs
+++ b/ConstructionCompany/ConstructionCompanyContracts/BusinessLogicContracts/IMaterialOrderLogic.cs
@@ -14,7 +14,6 @@ namespace ConstructionCompanyContracts.BusinessLogicContracts
         List<MaterialOrderViewModel>? ReadList(MaterialOrderSearchModel? model);
         MaterialOrderViewModel? ReadElement(MaterialOrderSearchModel model);
         bool Create(MaterialOrderBindingModel model);
-        bool Update(MaterialOrderBindingModel model);
         bool Delete(MaterialOrderBindingModel model);
     }
 }