diff --git a/src/10_PITF/Testat/Bank.cpp b/src/10_PITF/Testat/Bank.cpp
index bd2002e..9fbff68 100644
--- a/src/10_PITF/Testat/Bank.cpp
+++ b/src/10_PITF/Testat/Bank.cpp
@@ -7,11 +7,15 @@ Bank::Bank(std::string name) : name(std::move(name)) {
 
 }
 
-void Bank::addAccount(BankAccount * account) {
+void Bank::addAccount(std::unique_ptr<BankAccount> account) {
     accounts.insert(account);
 }
 
-std::set<BankAccount *> Bank::getAccounts() {
+void Bank::addMoney(std::unique_ptr<Money> money) {
+    this->money.insert(money);
+}
+
+std::set<std::unique_ptr<BankAccount>> Bank::getAccounts() {
     return accounts;
 }
 
@@ -19,7 +23,4 @@ std::string Bank::getName() {
     return name;
 }
 
-void Bank::addMoney(Money * money) {
-    this->money.insert(money);
-}
 
diff --git a/src/10_PITF/Testat/Bank.h b/src/10_PITF/Testat/Bank.h
index 4d5fb88..bc09d23 100644
--- a/src/10_PITF/Testat/Bank.h
+++ b/src/10_PITF/Testat/Bank.h
@@ -7,13 +7,13 @@
 class Bank {
 private:
     std::string name;
-    std::set<BankAccount *> accounts;
-    std::set<Money *> money;
+    std::set<std::unique_ptr<BankAccount>> accounts;
+    std::set<std::unique_ptr<Money>> money;
 public:
     explicit Bank(std::string name);
-    void addAccount(BankAccount * account);
-    void addMoney(Money * money);
-    std::set<BankAccount *> getAccounts();
+    void addAccount(std::unique_ptr<BankAccount> account);
+    void addMoney(std::unique_ptr<Money> money);
+    std::set<std::unique_ptr<BankAccount>> getAccounts();
     std::string getName();
 };
 
diff --git a/src/10_PITF/Testat/BankAccount.cpp b/src/10_PITF/Testat/BankAccount.cpp
index 333c1c8..77000ce 100644
--- a/src/10_PITF/Testat/BankAccount.cpp
+++ b/src/10_PITF/Testat/BankAccount.cpp
@@ -1,36 +1,30 @@
+#include <utility>
+
+#include <memory>
+
 #include "BankAccount.h"
 #include "CashFactory.h"
 
-BankAccount::BankAccount(Person * owner, std::string name) : name(std::move(name)) {
-this->owner = owner;
+BankAccount::BankAccount(std::shared_ptr<Person> owner, std::string name) : name(std::move(name)), owner(std::move(owner)) {
+
 }
 
-BankAccount * BankAccount::operator+(Money * money) {
+std::unique_ptr<BankAccount> BankAccount::operator+(std::unique_ptr<Money> money) {
+    std::unique_ptr<Money> ptr = std::make_unique<Money>(new Money(money->getValue() + getMoney()->getValue(), money->getCurrency()));
 
-    BankAccount::money = new Money(money->getValue() + getMoney().getValue());
-    return this;
+
+    BankAccount::money.swap(ptr);
+    return std::make_unique<BankAccount>(this);
 }
 
-Money * BankAccount::operator-(int value) {
+std::unique_ptr<Money> BankAccount::operator-(int value) {
     auto * cashFactory = new CashFactory();
 
     return cashFactory->printCoin(value, CurrencyValue::USD);
 }
 
-bool BankAccount::operator<(BankAccount * bankAccount) {
-    return money.getValue() < bankAccount->money.getValue();
-}
-
-std::string BankAccount::getName() {
-    return name;
-}
-
-Money BankAccount::getMoney() {
-    return money;
-}
-
-Person *BankAccount::getOwner() {
-    return owner;
+bool BankAccount::operator<(std::unique_ptr<BankAccount> bankAccount) {
+    return money->getValue() < bankAccount->getMoney()->getValue();
 }
 
 
diff --git a/src/10_PITF/Testat/BankAccount.h b/src/10_PITF/Testat/BankAccount.h
index c0432ad..48e5446 100644
--- a/src/10_PITF/Testat/BankAccount.h
+++ b/src/10_PITF/Testat/BankAccount.h
@@ -2,6 +2,7 @@
 #define C_C_BANKACCOUNTS_H
 
 #include <unordered_map>
+#include <memory>
 
 #include "Money.h"
 #include "Cash.h"
@@ -10,16 +11,16 @@
 class BankAccount {
 private:
     std::string name;
-    Person * owner;
-    Money money;
+    std::shared_ptr<Person> owner;
+    std::unique_ptr<Money> money;
 public:
-    explicit BankAccount(Person * owner, std::string name);
-    BankAccount* operator+(Money * money);
-    Money* operator-(int value);
-    bool operator<(BankAccount * bankAccount);
+    explicit BankAccount(std::shared_ptr<Person> owner, std::string name);
+    std::unique_ptr<BankAccount> operator+(std::unique_ptr<Money> money);
+    std::unique_ptr<Money> operator-(int value);
+    bool operator<(std::unique_ptr<BankAccount> bankAccount);
     std::string getName();
-    Person * getOwner();
-    Money getMoney();
+    std::shared_ptr<Person> getOwner();
+    std::unique_ptr<Money> getMoney();
 };
 
 
diff --git a/src/10_PITF/Testat/Bill.h b/src/10_PITF/Testat/Bill.h
index bafd05e..a747b00 100644
--- a/src/10_PITF/Testat/Bill.h
+++ b/src/10_PITF/Testat/Bill.h
@@ -10,7 +10,7 @@ private:
 public:
     Bill(int value, Currency currency, std::string serial);
     std::string getSerial();
-    int getValue();
+    int getValue() override;
 };
 
 
diff --git a/src/10_PITF/Testat/CashFactory.cpp b/src/10_PITF/Testat/CashFactory.cpp
index 0eff08f..44cd9aa 100644
--- a/src/10_PITF/Testat/CashFactory.cpp
+++ b/src/10_PITF/Testat/CashFactory.cpp
@@ -6,7 +6,7 @@ int allowedCoins[8] = {1, 2, 5, 10, 20, 50, 100, 200};
 
 std::vector<std::string> usedSerials;
 
-Bill * CashFactory::printBill(int value, Currency currency) {
+std::unique_ptr<Bill> CashFactory::printBill(int value, Currency currency) {
     auto * iter = std::find(std::begin(allowedBills), std::end(allowedBills), value);
     if(iter == std::end(allowedBills)) {
         return nullptr;
@@ -16,15 +16,16 @@ Bill * CashFactory::printBill(int value, Currency currency) {
             serial = randomString(15);
         }
         usedSerials.push_back(serial);
-        return new Bill(value, currency, serial);
+
+        return std::make_unique<Bill>(new Bill(value, currency, serial));
     }
 }
 
-Coin * CashFactory::printCoin(int value, Currency currency) {
+std::unique_ptr<Coin> CashFactory::printCoin(int value, Currency currency) {
     auto * iter = std::find(std::begin(allowedCoins), std::end(allowedCoins), value);
     if(iter == std::end(allowedCoins)) {
         return nullptr;
-    }else return new Coin(value, currency);
+    }else return std::make_unique<Coin>(new Coin(value, currency));
 }
 
 std::string CashFactory::randomString(size_t length) {
diff --git a/src/10_PITF/Testat/CashFactory.h b/src/10_PITF/Testat/CashFactory.h
index 59b33b0..8bfcd84 100644
--- a/src/10_PITF/Testat/CashFactory.h
+++ b/src/10_PITF/Testat/CashFactory.h
@@ -3,6 +3,8 @@
 
 #include <string>
 #include <vector>
+#include <memory>
+
 #include "Bill.h"
 #include "Coin.h"
 
@@ -10,8 +12,8 @@ class CashFactory {
 private:
     std::string randomString(size_t length);
 public:
-    Bill * printBill(int value, Currency currency);
-    Coin * printCoin(int value, Currency currency);
+    std::unique_ptr<Bill> printBill(int value, Currency currency);
+    std::unique_ptr<Coin> printCoin(int value, Currency currency);
 };
 
 #endif
\ No newline at end of file
diff --git a/src/10_PITF/Testat/Coin.h b/src/10_PITF/Testat/Coin.h
index 2ea7be6..9195945 100644
--- a/src/10_PITF/Testat/Coin.h
+++ b/src/10_PITF/Testat/Coin.h
@@ -8,7 +8,7 @@ class Coin : public Cash{
 private:
 public:
     Coin(int value, Currency currency);
-    int getValue();
+    int getValue() override;
 };
 
 #endif
diff --git a/src/10_PITF/Testat/Currency.cpp b/src/10_PITF/Testat/Currency.cpp
index 181d96d..f73472e 100644
--- a/src/10_PITF/Testat/Currency.cpp
+++ b/src/10_PITF/Testat/Currency.cpp
@@ -4,7 +4,7 @@
 Currency::Currency(CurrencyValue value) : value(value) {
 }
 
-bool Currency::operator==(Currency &currency) {
+bool Currency::operator==(Currency currency) {
     return value == currency.value;
 }
 
diff --git a/src/10_PITF/Testat/Currency.h b/src/10_PITF/Testat/Currency.h
index 469346c..d511519 100644
--- a/src/10_PITF/Testat/Currency.h
+++ b/src/10_PITF/Testat/Currency.h
@@ -14,7 +14,7 @@ private:
     CurrencyValue value;
 public:
     Currency(CurrencyValue value);
-    bool operator==(Currency &currency);
+    bool operator==(Currency currency);
     Currency& operator=(Currency currency);
     CurrencyValue getValue();
 
diff --git a/src/10_PITF/Testat/Money.cpp b/src/10_PITF/Testat/Money.cpp
index 841269d..d45bd6e 100644
--- a/src/10_PITF/Testat/Money.cpp
+++ b/src/10_PITF/Testat/Money.cpp
@@ -28,12 +28,14 @@ Money Money::operator-(Money &a) {
     }else return Money(-1, Currency(CurrencyValue::USD));
 }
 
-const Money Money::operator++(int) {
-    return Money(value++);
+const std::unique_ptr<Money> Money::operator++(int) {
+    value++;
+    return std::make_unique<Money>(this);
 }
 
-const Money Money::operator--(int) {
-    return Money(value--);
+const std::unique_ptr<Money> Money::operator--(int) {
+    value--;
+    return std::make_unique<Money>(this);
 }
 
 int Money::getValue() {
@@ -42,4 +44,22 @@ int Money::getValue() {
 
 Currency Money::getCurrency() {
     return currency;
-}
\ No newline at end of file
+}
+
+std::unique_ptr<Money> Money::operator+(std::unique_ptr<Money> &a) {
+    if(currency == a->getCurrency()) {
+        return std::make_unique<Money>(Money(value + a->getValue()));
+    }else return std::make_unique<Money>(Money(-1, Currency(CurrencyValue::USD)));
+}
+
+std::unique_ptr<Money> Money::operator-(std::unique_ptr<Money> &a) {
+    if(currency == a->getCurrency()) {
+        return std::make_unique<Money>(Money(value - a->getValue()));
+    }else return std::make_unique<Money>(Money(-1, Currency(CurrencyValue::USD)));
+}
+
+std::unique_ptr<Money> Money::operator=(std::unique_ptr<Money> money) {
+    value = money->getValue();
+    currency = money->getCurrency();
+    return std::make_unique<Money>(Money(value, currency));
+}
diff --git a/src/10_PITF/Testat/Money.h b/src/10_PITF/Testat/Money.h
index ddfa6f1..5eed649 100644
--- a/src/10_PITF/Testat/Money.h
+++ b/src/10_PITF/Testat/Money.h
@@ -1,6 +1,8 @@
 #ifndef C_C_MONEY_H
 #define C_C_MONEY_H
 
+#include <memory>
+
 #include "Currency.h"
 
 class Money {
@@ -9,12 +11,12 @@ private:
     Currency currency;
 public:
     explicit Money(int value = 0, Currency currency = CurrencyValue::USD);
-    Money& operator=(Money money);
-    Money& operator=(Money * money);
-    Money operator+(Money &a);
-    Money operator-(Money &a);
-    const Money operator++(int);
-    const Money operator--(int);
+    std::unique_ptr<Money> operator=(Money money);
+    std::unique_ptr<Money> operator=(std::unique_ptr<Money> money);
+    std::unique_ptr<Money> operator+(std::unique_ptr<Money> &a);
+    std::unique_ptr<Money> operator-(std::unique_ptr<Money> &a);
+    const std::unique_ptr<Money> operator++(int);
+    const std::unique_ptr<Money> operator--(int);
 
     virtual int getValue();
     Currency getCurrency();
diff --git a/src/10_PITF/Testat/Person.h b/src/10_PITF/Testat/Person.h
index ffd9656..f272851 100644
--- a/src/10_PITF/Testat/Person.h
+++ b/src/10_PITF/Testat/Person.h
@@ -3,12 +3,14 @@
 
 
 #include <string>
+#include <memory>
+
 #include "Money.h"
 
 class Person {
 private:
     std::string name;
-    std::vector<Money *> money;
+    std::vector<std::unique_ptr<Money>> money;
 public:
     explicit Person(std::string name);
     std::string getName();
diff --git a/src/10_PITF/Testat/main.cpp b/src/10_PITF/Testat/main.cpp
index c5db9e8..859c8b7 100644
--- a/src/10_PITF/Testat/main.cpp
+++ b/src/10_PITF/Testat/main.cpp
@@ -34,8 +34,8 @@ std::ostream &operator<<(std::ostream &os, Cash cash) {
     return os;
 }
 
-std::ostream &operator<<(std::ostream &os, Money money) {
-    os << money.getValue() << " " << money.getCurrency();
+std::ostream &operator<<(std::ostream &os, std::unique_ptr<Money> money) {
+    os << money->getValue() << " " << money->getCurrency();
     return os;
 }
 
@@ -50,7 +50,7 @@ std::ostream &operator<<(std::ostream &os, BankAccount bankAccount) {
 }
 
 std::set<Bank *> banks;
-std::set<Person *> owners;
+std::set<std::unique_ptr<Person>> owners;
 CashFactory *cashFactory;
 
 void setup() {
@@ -60,9 +60,9 @@ void setup() {
     Bank *bank2 = new Bank("Bank 2");
     Bank *bank3 = new Bank("Bank 3");
 
-    Person *max = new Person("Max Müller");
-    Person *marius = new Person("Marius Müller");
-    Person *alex = new Person("Alex Maier");
+    std::unique_ptr<Person> max = std::make_unique<Person>(new Person("Max Müller"));
+    std::unique_ptr<Person> marius = std::make_unique<Person>(new Person("Marius Müller"));
+    std::unique_ptr<Person> alex = std::make_unique<Person>(new Person("Alex Maier"));
 
     owners.insert(max);
     owners.insert(marius);
@@ -91,10 +91,10 @@ void simulate() {
         std::cout << std::endl;
         std::cout << "======================== " << bank->getName() << " ========================" << std::endl;
         std::cout << std::endl;
-        for (BankAccount *bankAccount : bank->getAccounts()) {
+        for (std::unique_ptr<BankAccount> bankAccount : bank->getAccounts()) {
             for (int i = 0; i < 10000; ++i) {
                 int rnd = distribution(generator);
-                Bill *bill = cashFactory->printBill(rnd, CurrencyValue::USD);
+                std::unique_ptr<Bill> bill = cashFactory->printBill(rnd, CurrencyValue::USD);
                 Coin *coin = cashFactory->printCoin(rnd, CurrencyValue::USD);
                 if (bill != nullptr) {
                     *bankAccount + bill;
@@ -124,8 +124,11 @@ void tearDown() {
 
 
 int main(int argc, char **argv) {
+    std::cout << "+++++++++++++++++++++++++ " << "setup()" << " +++++++++++++++++++++++++" << std::endl;
     setup();
+    std::cout << "+++++++++++++++++++++++++ " << "simulate()" << " +++++++++++++++++++++++++" << std::endl;
     simulate();
+    std::cout << "+++++++++++++++++++++++++ " << "tearDown()" << " +++++++++++++++++++++++++" << std::endl;
     tearDown();
 
     HeapObject::assertionsHold();