diff --git a/TheBank/BankContracts/DataModels/ClerkDataModel.cs b/TheBank/BankContracts/DataModels/ClerkDataModel.cs
new file mode 100644
index 0000000..a1fc55a
--- /dev/null
+++ b/TheBank/BankContracts/DataModels/ClerkDataModel.cs
@@ -0,0 +1,84 @@
+using BankContracts.Exceptions;
+using BankContracts.Extensions;
+using BankContracts.Infrastructure;
+using System.Text.RegularExpressions;
+
+namespace BankContracts.DataModels;
+
+/// <summary>
+/// Дата модель клерка
+/// </summary>
+/// <param name="id">уникальный Guid индентификатор</param>
+/// <param name="name">имя</param>
+/// <param name="surname">фамилия</param>
+/// <param name="middleName">отчество</param>
+/// <param name="login">логин</param>
+/// <param name="password">пароль</param>
+/// <param name="email">адрес электронной почты</param>
+/// <param name="phoneNumber">номер телефона</param>
+public class ClerkDataModel(string id, string name, string surname, string middleName, string login, string password, string email, string phoneNumber) : IValidation
+{
+    public string Id { get; private set; } = id;
+
+    public string Name { get; private set; } = name;
+
+    public string Surname { get; private set; } = surname;
+
+    public string MiddleName { get; private set; } = middleName;
+
+    public string Login {  get; private set; } = login;
+
+    public string Password { get; private set; } = password;
+
+    public string Email { get; private set; } = email;
+
+    public string PhoneNumber { get; private set; } = phoneNumber;
+
+    public void Validate()
+    {
+        if (Id.IsEmpty())
+        {
+            throw new ValidationException("Field Id is null or empty");
+        }
+        if (!Id.IsGuid())
+        {
+            throw new ValidationException("The value in the field Id is not a unique identifier");
+        }
+        if (Name.IsEmpty())
+        {
+            throw new ValidationException("Field Name is null or empty");
+        }
+        if (Surname.IsEmpty())
+        {
+            throw new ValidationException("Field Surname is null or empty");
+        }
+        if (MiddleName.IsEmpty())
+        {
+            throw new ValidationException("Field MiddleName is null or empty");
+        }
+        if (Login.IsEmpty())
+        {
+            throw new ValidationException("Field Login is null or empty");
+        }
+        if (Password.IsEmpty())
+        {
+            throw new ValidationException("Field Login is null or empty");
+        }
+        if (Email.IsEmpty())
+        {
+            throw new ValidationException("Field Login is null or empty");
+        }
+        if (!Regex.IsMatch(Email, @"^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$"))
+        {
+            throw new ValidationException("Field Email is not a valid email address");
+        }
+        if (PhoneNumber.IsEmpty())
+        {
+            throw new ValidationException("Field Login is null or empty");
+        }
+        if (!Regex.IsMatch(PhoneNumber, @"^((8|\+7)[\- ]?)?(\(?\d{3}\)?[\- ]?)?[\d\- ]{7,10}$"))
+        {
+            throw new ValidationException("Field PhoneNumber is not a phone number");
+        }
+    }
+}
diff --git a/TheBank/BankContracts/DataModels/ClientCreditProgramDataModel.cs b/TheBank/BankContracts/DataModels/ClientCreditProgramDataModel.cs
new file mode 100644
index 0000000..3b140dd
--- /dev/null
+++ b/TheBank/BankContracts/DataModels/ClientCreditProgramDataModel.cs
@@ -0,0 +1,37 @@
+using BankContracts.Exceptions;
+using BankContracts.Extensions;
+using BankContracts.Infrastructure;
+
+namespace BankContracts.DataModels;
+
+/// <summary>
+/// Дата модель клиент кредитная программа
+/// </summary>
+/// <param name="clientId"></param>
+/// <param name="creditProgramId"></param>
+public class ClientCreditProgramDataModel(string clientId, string creditProgramId) : IValidation
+{
+    public string ClientId { get; private set; } = clientId;
+
+    public string CreditProgramId { get; private set; } = creditProgramId;
+
+    public void Validate()
+    {
+        if (ClientId.IsEmpty())
+        {
+            throw new ValidationException("Field ClientId is null or empty");
+        }
+        if (!ClientId.IsGuid())
+        {
+            throw new ValidationException("The value in the field ClientId is not a unique identifier");
+        }
+        if (CreditProgramId.IsEmpty())
+        {
+            throw new ValidationException("Field CreditProgramId is null or empty");
+        }
+        if (!CreditProgramId.IsGuid())
+        {
+            throw new ValidationException("The value in the field CreditProgramId is not a unique identifier");
+        }
+    }
+}
diff --git a/TheBank/BankContracts/DataModels/ClientDataModel.cs b/TheBank/BankContracts/DataModels/ClientDataModel.cs
new file mode 100644
index 0000000..bcff9c5
--- /dev/null
+++ b/TheBank/BankContracts/DataModels/ClientDataModel.cs
@@ -0,0 +1,58 @@
+using BankContracts.Exceptions;
+using BankContracts.Extensions;
+using BankContracts.Infrastructure;
+
+namespace BankContracts.DataModels;
+
+/// <summary>
+/// Дата модель клиента
+/// </summary>
+/// <param name="id">уникальный Guid индентификатор</param>
+/// <param name="name">имя клиента</param>
+/// <param name="surname">фамилия клиента</param>
+/// <param name="balance">баланс клиента</param>
+/// <param name="clerkId">уникальный Guid индентификатор клерка</param>
+public class ClientDataModel(string id, string name, string surname, decimal balance, string clerkId) : IValidation
+{
+    public string Id { get; private set; } = id;
+
+    public string Name { get; private set; } = name;
+
+    public string Surname { get; private set; } = surname;
+
+    public decimal Balance { get; private set; } = balance;
+
+    public string Clerkid { get; private set; } = clerkId;
+
+    public void Validate()
+    {
+        if (Id.IsEmpty())
+        {
+            throw new ValidationException("Field Id is null or empty");
+        }
+        if (!Id.IsGuid())
+        {
+            throw new ValidationException("The value in the field Id is not a unique identifier");
+        }
+        if (Name.IsEmpty())
+        {
+            throw new ValidationException("Field Name is null or empty");
+        }
+        if (Surname.IsEmpty())
+        {
+            throw new ValidationException("Field Surname is null or empty");
+        }
+        if (Balance <= 0)
+        {
+            throw new ValidationException("Field Balance is less or equal to zero");
+        }
+        if (Clerkid.IsEmpty())
+        {
+            throw new ValidationException("Field Clerkid is null or empty");
+        }
+        if (!Clerkid.IsGuid())
+        {
+            throw new ValidationException("The value in the field Clerkid is not a unique identifier");
+        }
+    }
+}
diff --git a/TheBank/BankContracts/DataModels/DepositClientDataModel.cs b/TheBank/BankContracts/DataModels/DepositClientDataModel.cs
new file mode 100644
index 0000000..2159e31
--- /dev/null
+++ b/TheBank/BankContracts/DataModels/DepositClientDataModel.cs
@@ -0,0 +1,37 @@
+using BankContracts.Exceptions;
+using BankContracts.Extensions;
+using BankContracts.Infrastructure;
+
+namespace BankContracts.DataModels;
+
+/// <summary>
+/// Дата модель вклад клиент
+/// </summary>
+/// <param name="depositId">уникальный Guid индентификатор вклада</param>
+/// <param name="clientId">уникальный Guid индентификатор клиента</param>
+public class DepositClientDataModel(string depositId, string clientId) : IValidation
+{
+    public string DepositId { get; private set; } = depositId;
+
+    public string ClientId { get; private set; } = clientId;
+
+    public void Validate()
+    {
+        if (DepositId.IsEmpty())
+        {
+            throw new ValidationException("Field DepositId is null or empty");
+        }
+        if (!DepositId.IsGuid())
+        {
+            throw new ValidationException("The value in the field DepositId is not a unique identifier");
+        }
+        if (ClientId.IsEmpty())
+        {
+            throw new ValidationException("Field ClientId is null or empty");
+        }
+        if (!ClientId.IsGuid())
+        {
+            throw new ValidationException("The value in the field ClientId is not a unique identifier");
+        }
+    }
+}
diff --git a/TheBank/BankContracts/DataModels/DepositCurrencyDataModel.cs b/TheBank/BankContracts/DataModels/DepositCurrencyDataModel.cs
new file mode 100644
index 0000000..ace234b
--- /dev/null
+++ b/TheBank/BankContracts/DataModels/DepositCurrencyDataModel.cs
@@ -0,0 +1,37 @@
+using BankContracts.Exceptions;
+using BankContracts.Extensions;
+using BankContracts.Infrastructure;
+
+namespace BankContracts.DataModels;
+
+/// <summary>
+/// Дата модель вклад валюта
+/// </summary>
+/// <param name="depositId">уникальный Guid индентификатор вклада</param>
+/// <param name="currencyId">уникальный Guid индентификатор валюты</param>
+public class DepositCurrencyDataModel(string depositId, string currencyId) : IValidation
+{
+    public string DepositId { get; private set; } = depositId;
+
+    public string CurrencyId { get; private set; } = currencyId;
+
+    public void Validate()
+    {
+        if (DepositId.IsEmpty())
+        {
+            throw new ValidationException("Field DepositId is null or empty");
+        }
+        if (!DepositId.IsGuid())
+        {
+            throw new ValidationException("The value in the field DepositId is not a unique identifier");
+        }
+        if (CurrencyId.IsEmpty())
+        {
+            throw new ValidationException("Field CurrencyId is null or empty");
+        }
+        if (!CurrencyId.IsGuid())
+        {
+            throw new ValidationException("The value in the field CurrencyId is not a unique identifier");
+        }
+    }
+}
diff --git a/TheBank/BankContracts/DataModels/DepositDataModel.cs b/TheBank/BankContracts/DataModels/DepositDataModel.cs
new file mode 100644
index 0000000..7dbcc47
--- /dev/null
+++ b/TheBank/BankContracts/DataModels/DepositDataModel.cs
@@ -0,0 +1,58 @@
+using BankContracts.Exceptions;
+using BankContracts.Extensions;
+using BankContracts.Infrastructure;
+
+namespace BankContracts.DataModels;
+
+/// <summary>
+/// Дата модель вклада
+/// </summary>
+/// <param name="id">уникальный Guid индентификатор</param>
+/// <param name="interestRate">процентная ставка</param>
+/// <param name="cost">стоимость</param>
+/// <param name="period">срок</param>
+/// <param name="clerkId">уникальный Guid индентификатор клерка</param>
+public class DepositDataModel(string id, float interestRate, decimal cost, int period, string clerkId) : IValidation
+{
+    public string Id { get; private set; } = id;
+
+    public float InterestRate { get; private set; } = interestRate;
+
+    public decimal Cost { get; private set; } = cost;
+
+    public int Period { get; private set; } = period;
+
+    public string ClerkId { get; private set; } = clerkId;
+
+    public void Validate()
+    {
+        if (Id.IsEmpty())
+        {
+            throw new ValidationException("Field Id is null or empty");
+        }
+        if (!Id.IsGuid())
+        {
+            throw new ValidationException("The value in the field Id is not a unique identifier");
+        }
+        if (InterestRate <= 0)
+        {
+            throw new ValidationException("Field InterestRate is less or equal to zero");
+        }
+        if (Cost <= 0)
+        {
+            throw new ValidationException("Field Cost is less or equal to zero");
+        }
+        if (Period <= 0)
+        {
+            throw new ValidationException("Field Period is less or equal to zero");
+        }
+        if (ClerkId.IsEmpty())
+        {
+            throw new ValidationException("Field ClerkId is null or empty");
+        }
+        if (!ClerkId.IsGuid())
+        {
+            throw new ValidationException("The value in the field ClerkId is not a unique identifier");
+        }
+    }
+}
diff --git a/TheBank/BankContracts/DataModels/ReplenishmentDataModel.cs b/TheBank/BankContracts/DataModels/ReplenishmentDataModel.cs
new file mode 100644
index 0000000..dfa85fa
--- /dev/null
+++ b/TheBank/BankContracts/DataModels/ReplenishmentDataModel.cs
@@ -0,0 +1,58 @@
+using BankContracts.Exceptions;
+using BankContracts.Extensions;
+using BankContracts.Infrastructure;
+
+namespace BankContracts.DataModels;
+
+/// <summary>
+/// Дата модель пополнения
+/// </summary>
+/// <param name="id">уникальный Guid индентификатор</param>
+/// <param name="amount">сумма пополнения</param>
+/// <param name="date">дата пополнения</param>
+/// <param name="depositId">уникальный Guid индентификатор вклада</param>
+/// <param name="clerkId">уникальный Guid индентификатор клерка</param>
+public class ReplenishmentDataModel(string id, decimal amount, DateTime date, string depositId, string clerkId) : IValidation
+{
+    public string Id { get; private set; } = id;
+
+    public decimal Amount { get; private set; } = amount;
+
+    public DateTime Date { get; private set; } = date;
+
+    public string DepositId { get; private set; } = depositId;
+
+    public string ClerkId { get; private set; } = clerkId;
+
+    public void Validate()
+    {
+        if (Id.IsEmpty())
+        {
+            throw new ValidationException("Field Id is null or empty");
+        }
+        if (!Id.IsGuid())
+        {
+            throw new ValidationException("The value in the field Id is not a unique identifier");
+        }
+        if (Amount <= 0)
+        {
+            throw new ValidationException("Field Amount is less or equal to zero");
+        }
+        if (DepositId.IsEmpty())
+        {
+            throw new ValidationException("Field DepositId is null or empty");
+        }
+        if (!DepositId.IsGuid())
+        {
+            throw new ValidationException("The value in the field DepositId is not a unique identifier");
+        }
+        if (ClerkId.IsEmpty())
+        {
+            throw new ValidationException("Field ClerkId is null or empty");
+        }
+        if (!ClerkId.IsGuid())
+        {
+            throw new ValidationException("The value in the field ClerkId is not a unique identifier");
+        }
+    }
+}