diff --git a/Bank/BankBusinessLogic/BankBusinessLogic.csproj b/Bank/BankBusinessLogic/BankBusinessLogic.csproj
index 27ac386..70a5c88 100644
--- a/Bank/BankBusinessLogic/BankBusinessLogic.csproj
+++ b/Bank/BankBusinessLogic/BankBusinessLogic.csproj
@@ -6,4 +6,12 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="7.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\BankContracts\BankContracts.csproj" />
+  </ItemGroup>
+
 </Project>
diff --git a/Bank/BankBusinessLogic/BusinessLogics/BankOperatorLogic.cs b/Bank/BankBusinessLogic/BusinessLogics/BankOperatorLogic.cs
new file mode 100644
index 0000000..d51e075
--- /dev/null
+++ b/Bank/BankBusinessLogic/BusinessLogics/BankOperatorLogic.cs
@@ -0,0 +1,116 @@
+using BankContracts.BindingModels;
+using BankContracts.BusinessLogicsContracts;
+using BankContracts.SearchModels;
+using BankContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Logging;
+using BankContracts.StoragesContracts;
+
+namespace BankBusinessLogic.BusinessLogics
+{
+    public class BankOperatorLogic : IBankOperatorLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IBankOperatorStorage _BankOperatorStorage;
+
+        public BankOperatorLogic(ILogger<BankOperatorLogic> logger, IBankOperatorStorage BankOperatorStorage)
+        {
+            _logger = logger;
+            _BankOperatorStorage = BankOperatorStorage;
+        }
+        public List<BankOperatorViewModel>? ReadList(BankOperatorSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id:{ Id}", model?.Id);
+            var list = model == null ? _BankOperatorStorage.GetFullList() : _BankOperatorStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+        public BankOperatorViewModel? ReadElement(BankOperatorSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Id:{ Id}. Login: { Login}", model.Id, model.Login);
+            var element = _BankOperatorStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}. Login: { Login}", element.Id);
+            return element;
+        }
+        public bool Create(BankOperatorBindingModel model)
+        {
+            CheckModel(model);
+            if (_BankOperatorStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(BankOperatorBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_BankOperatorStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Update(BankOperatorBindingModel model)
+        {
+            CheckModel(model);
+            if (_BankOperatorStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(BankOperatorBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.FirstName))
+            {
+                throw new ArgumentNullException("Нет имени!", nameof(model.FirstName));
+            }
+            if (string.IsNullOrEmpty(model.LastName))
+            {
+                throw new ArgumentNullException("Нет фамилии!", nameof(model.LastName));
+            }
+            if (string.IsNullOrEmpty(model.Login))
+            {
+                throw new ArgumentNullException("Нет логина!", nameof(model.Login));
+            }
+            if (string.IsNullOrEmpty(model.Password))
+            {
+                throw new ArgumentNullException("Нет пароля!", nameof(model.Password));
+            }
+            _logger.LogInformation("FirstName:{ FirstName}. LastName: {LastName}. Login: {Login} .Id: { Id}",
+                model.FirstName, model.LastName, model.Login, model.Id);
+        }
+    }
+}
diff --git a/Bank/BankBusinessLogic/BusinessLogics/CreditProgramLogic.cs b/Bank/BankBusinessLogic/BusinessLogics/CreditProgramLogic.cs
new file mode 100644
index 0000000..6088dd0
--- /dev/null
+++ b/Bank/BankBusinessLogic/BusinessLogics/CreditProgramLogic.cs
@@ -0,0 +1,107 @@
+using BankContracts.BindingModels;
+using BankContracts.BusinessLogicsContracts;
+using BankContracts.SearchModels;
+using BankContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Logging;
+using BankContracts.StoragesContracts;
+
+namespace BankBusinessLogic.BusinessLogics
+{
+    public class CreditProgramLogic : ICreditProgramLogic
+    {
+        private readonly ILogger _logger;
+        private readonly ICreditProgramStorage _CreditProgramStorage;
+        public CreditProgramLogic(ILogger<CreditProgramLogic> logger, ICreditProgramStorage CreditProgramStorage)
+        {
+            _logger = logger;
+            _CreditProgramStorage = CreditProgramStorage;
+        }
+        public List<CreditProgramViewModel>? ReadList(CreditProgramSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id:{ Id}", model?.Id);
+            var list = model == null ? _CreditProgramStorage.GetFullList() : _CreditProgramStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+        public CreditProgramViewModel? ReadElement(CreditProgramSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Id:{ Id}", model.Id);
+            var element = _CreditProgramStorage.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(CreditProgramBindingModel model)
+        {
+            CheckModel(model);
+            if (_CreditProgramStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(CreditProgramBindingModel model)
+        {
+            CheckModel(model);
+            if (_CreditProgramStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(CreditProgramBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_CreditProgramStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(CreditProgramBindingModel 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 валюты!", nameof(model.Name));
+            }
+            if (model.Persent <= 0)
+            {
+                throw new InvalidOperationException("Процент кредитования неположительный!");
+            }
+            _logger.LogInformation("Name:{ Name}. Percent: {Percent}. Id: { Id}", model.Name, model.Persent, model.Id);
+        }
+    }
+}
diff --git a/Bank/BankBusinessLogic/BusinessLogics/CurrencyLogic.cs b/Bank/BankBusinessLogic/BusinessLogics/CurrencyLogic.cs
index 0c7d8a4..4418579 100644
--- a/Bank/BankBusinessLogic/BusinessLogics/CurrencyLogic.cs
+++ b/Bank/BankBusinessLogic/BusinessLogics/CurrencyLogic.cs
@@ -3,10 +3,98 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using BankContracts.BindingModels;
+using BankContracts.BusinessLogicsContracts;
+using BankContracts.SearchModels;
+using BankContracts.StoragesContracts;
+using BankContracts.ViewModels;
+using Microsoft.Extensions.Logging;
 
 namespace BankBusinessLogic.BusinessLogics
 {
-    internal class CurrencyLogic
+    public class CurrencyLogic : ICurrencyLogic
     {
+        private readonly ILogger _logger;
+        private readonly ICurrencyStorage _CurrencyStorage;
+        public CurrencyLogic(ILogger<CurrencyLogic> logger, ICurrencyStorage CurrencyStorage)
+        {
+            _logger = logger;
+            _CurrencyStorage = CurrencyStorage;
+        }
+        public List<CurrencyViewModel>? ReadList(CurrencySearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id:{ Id}", model?.Id);
+            var list = model == null ? _CurrencyStorage.GetFullList() : _CurrencyStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+        public CurrencyViewModel? ReadElement(CurrencySearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Id:{ Id}", model.Id);
+            var element = _CurrencyStorage.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(CurrencyBindingModel model)
+        {
+            CheckModel(model);
+            if (_CurrencyStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Update(CurrencyBindingModel model)
+        {
+            CheckModel(model);
+            if (_CurrencyStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Delete(CurrencyBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_CurrencyStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+        private void CheckModel(CurrencyBindingModel 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 валюты!", nameof(model.Name));
+            }
+            _logger.LogInformation("Name:{ Name}.Id: { Id}", model.Name, model.Id);
+        }
     }
 }
diff --git a/Bank/BankBusinessLogic/BusinessLogics/CurrencyPurchaseLogic.cs b/Bank/BankBusinessLogic/BusinessLogics/CurrencyPurchaseLogic.cs
new file mode 100644
index 0000000..64eae3b
--- /dev/null
+++ b/Bank/BankBusinessLogic/BusinessLogics/CurrencyPurchaseLogic.cs
@@ -0,0 +1,112 @@
+using BankContracts.BindingModels;
+using BankContracts.BusinessLogicsContracts;
+using BankContracts.SearchModels;
+using BankContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Logging;
+using BankContracts.StoragesContracts;
+
+
+namespace BankBusinessLogic.BusinessLogics
+{
+    public class CurrencyPurchaseLogic : ICurrencyPurchaseLogic
+    {
+        private readonly ILogger _logger;
+        private readonly ICurrencyPurchaseStorage _CurrencyPurchaseStorage;
+        public CurrencyPurchaseLogic(ILogger<CurrencyPurchaseLogic> logger, ICurrencyPurchaseStorage CurrencyPurchaseStorage)
+        {
+            _logger = logger;
+            _CurrencyPurchaseStorage = CurrencyPurchaseStorage;
+        }
+        public CurrencyPurchaseViewModel? ReadElement(CurrencyPurchaseSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Id:{ Id}", model.Id);
+            var element = _CurrencyPurchaseStorage.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<CurrencyPurchaseViewModel>? ReadList(CurrencyPurchaseSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id:{ Id}", model?.Id);
+            var list = model == null ? _CurrencyPurchaseStorage.GetFullList() : _CurrencyPurchaseStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+        public bool Create(CurrencyPurchaseBindingModel model)
+        {
+            CheckModel(model);
+            if (_CurrencyPurchaseStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(CurrencyPurchaseBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_CurrencyPurchaseStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(CurrencyPurchaseBindingModel model)
+        {
+            CheckModel(model);
+            if (_CurrencyPurchaseStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(CurrencyPurchaseBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (model.BankOperatorId < 0)
+            {
+                throw new InvalidOperationException("Id оператора банка меньше нуля!");
+            }
+            if(model.CurrencyId < 0)
+            {
+                throw new InvalidOperationException("Id валюты меньше нуля!");
+            }
+            if (model.Amount <= 0) {
+                throw new InvalidOperationException("Количество закупленной валюты неположительно!");
+            }
+            _logger.LogInformation("Id: {Id}. Amount:{ Amount}. BankOperatorId: { BankOperatorId}. CurrencyId: {CurrencyId}.", model.Id, model.Amount, model.BankOperatorId, model.CurrencyId);
+        }
+    }
+}
diff --git a/Bank/BankContracts/SearchModels/CreditProgramSearchModel.cs b/Bank/BankContracts/SearchModels/CreditProgramSearchModel.cs
index f437982..3791aeb 100644
--- a/Bank/BankContracts/SearchModels/CreditProgramSearchModel.cs
+++ b/Bank/BankContracts/SearchModels/CreditProgramSearchModel.cs
@@ -8,6 +8,6 @@ namespace BankContracts.SearchModels
 {
     public class CreditProgramSearchModel
     {
-        int? Id { get; set; }
+        public int? Id { get; set; }
     }
 }
diff --git a/Bank/BankContracts/StoragesContracts/ICreditProgramStorage.cs b/Bank/BankContracts/StoragesContracts/ICreditProgramStorage.cs
index 0fa48cd..002e96d 100644
--- a/Bank/BankContracts/StoragesContracts/ICreditProgramStorage.cs
+++ b/Bank/BankContracts/StoragesContracts/ICreditProgramStorage.cs
@@ -5,6 +5,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using BankContracts.ViewModels;
 
 namespace BankContracts.StoragesContracts
 {
diff --git a/Bank/BankContracts/StoragesContracts/ICurrencyPurchaseStorage.cs b/Bank/BankContracts/StoragesContracts/ICurrencyPurchaseStorage.cs
index 9ba3a5a..52f068b 100644
--- a/Bank/BankContracts/StoragesContracts/ICurrencyPurchaseStorage.cs
+++ b/Bank/BankContracts/StoragesContracts/ICurrencyPurchaseStorage.cs
@@ -5,6 +5,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using BankContracts.ViewModels;
 
 namespace BankContracts.StoragesContracts
 {
diff --git a/Bank/BankContracts/ViewModels/BankOperatorViewModel.cs b/Bank/BankContracts/ViewModels/BankOperatorViewModel.cs
index ef2d8f8..d637c4e 100644
--- a/Bank/BankContracts/ViewModels/BankOperatorViewModel.cs
+++ b/Bank/BankContracts/ViewModels/BankOperatorViewModel.cs
@@ -1,4 +1,6 @@
-using System;
+using BankContracts.BusinessLogicsContracts;
+using BankDataModels.Models;
+using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Linq;
@@ -7,7 +9,7 @@ using System.Threading.Tasks;
 
 namespace BankContracts.ViewModels
 {
-    public class BankOperatorViewModel
+    public class BankOperatorViewModel : IBankOperatorModel
     {
         [DisplayName("Логин")]
         public string Login { get; set; } = String.Empty;
diff --git a/Bank/BankContracts/ViewModels/CreditProgramViewModel.cs b/Bank/BankContracts/ViewModels/CreditProgramViewModel.cs
index 49c1678..966dc8b 100644
--- a/Bank/BankContracts/ViewModels/CreditProgramViewModel.cs
+++ b/Bank/BankContracts/ViewModels/CreditProgramViewModel.cs
@@ -8,12 +8,12 @@ using System.Threading.Tasks;
 
 namespace BankContracts.ViewModels
 {
-    public class CreditProgramViewModel
+    public class CreditProgramViewModel : ICreditProgramModel
     {
         [DisplayName("Название кредитной программы")]
         public string Name { get; set; } = String.Empty;
         [DisplayName("Процент кредитования")]
-        public int Persent { get; set; }
+        public float Persent { get; set; }
         public Dictionary<int, ICurrencyModel> Currencies { get; set; } = new();
         [DisplayName("Номер программы")]
         public int Id { get; set; }
diff --git a/Bank/BankContracts/ViewModels/CurrencyPurchaseViewModel.cs b/Bank/BankContracts/ViewModels/CurrencyPurchaseViewModel.cs
index cb17f00..eac2c69 100644
--- a/Bank/BankContracts/ViewModels/CurrencyPurchaseViewModel.cs
+++ b/Bank/BankContracts/ViewModels/CurrencyPurchaseViewModel.cs
@@ -1,4 +1,5 @@
-using System;
+using BankDataModels.Models;
+using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Linq;
@@ -7,7 +8,7 @@ using System.Threading.Tasks;
 
 namespace BankContracts.ViewModels
 {
-    public class CurrencyPurchaseViewModel
+    public class CurrencyPurchaseViewModel : ICurrencyPurchaseModel
     {
         [DisplayName("Количество валюты")]
         public float Amount { get; set; }
diff --git a/Bank/BankDataModels/Models/ICreditProgramModel.cs b/Bank/BankDataModels/Models/ICreditProgramModel.cs
index a3af93a..5ebc21c 100644
--- a/Bank/BankDataModels/Models/ICreditProgramModel.cs
+++ b/Bank/BankDataModels/Models/ICreditProgramModel.cs
@@ -9,7 +9,7 @@ namespace BankDataModels.Models
     public interface ICreditProgramModel : IId
     {
         string Name { get;}
-        int Persent { get;}
+        float Persent { get;}
         Dictionary<int, ICurrencyModel> Currencies { get; }
     }
 }