You are required to specify the behavior of an ATM for deposit and withdrawal behavior. The ATM contains 3 modules i.e., deposit, withdrawal, and invalid. The notation will specify a function named balance that would be changeable in case of deposit or withdrawal. The amount is a variable that will be updated when the amount is deposited or withdrawn from the account. Status is also a variable that will be true before updating the amount in both modules.

You are required to specify the behavior of an ATM for deposit and withdrawal behavior. The ATM contains 3 modules i.e., deposit, withdrawal, and invalid. The notation will specify a function named balance that would be changeable in case of deposit or withdrawal. The amount is a variable that will be updated when the amount is deposited or withdrawn from the account. Status is also a variable that will be true before updating the amount in both modules.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Subject: Formal method in software engineering
Scenario
Note: using Z Notation.
You are required to specify the behavior of an ATM for deposit and withdrawal behavior.
The ATM contains 3 modules i.e., deposit, withdrawal, and invalid. The notation will specify
a function named balance that would be changeable in case of deposit or withdrawal. The
amount is a variable that will be updated when the amount is deposited or withdrawn from
the account. Status is also a variable that will be true before updating the amount in both
modules.

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