Considering the following quality attributes as important to this system, follow two iterations of the ADD process. For each iteration, provide the selected ASR, chosen tactic, and justification for itAvailability – The system should be available for access during normal operational hours 99.999% of the time. In case of failure, it should recover within 2 seconds.Performance - The system handles a large amount of data as there are 90 thousand customers with more than a million orders. The system should handle this load with a latency of 1 second.Security – The system should resist any unauthorized access anytime with 99.999% accuracy.Performance - The system should respond to user requests with an average latency of 1 second. Case Study:DefCon is an organization that develops IT solutions for businesses. The product in consideration isa system for supporting a magazine subscription business, where information about customers andtheir subscribed products is collected, stored, and tracked. Currently, online subscriptions are notpossible, so the details of subscriptions are mailed to the business and entered into the systemmanually. This business has around 45 employees with offices in Canberra, Sydney, and Perth. Theemployees have an option to work from home, so the system supports remote access.The basic architecture of the system is presented below:Clients - CustomViewsWorkstationsControllerBusiness ruleprocessingMultiple layersDatabase accesslayerOrder andcustomerdatabase (Model),

Assume , the 2 iterations for add is to enter the subscription details of subscriber. And let's see…

Answered: Considering the following quality…

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

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Considering the following quality attributes as important to this system, follow two iterations of the ADD process. For each iteration, provide the selected ASR, chosen tactic, and justification for it

Availability – The system should be available for access during normal operational hours 99.999% of the time. In case of failure, it should recover within 2 seconds.
Performance - The system handles a large amount of data as there are 90 thousand customers with more than a million orders. The system should handle this load with a latency of 1 second.
Security – The system should resist any unauthorized access anytime with 99.999% accuracy.
Performance - The system should respond to user requests with an average latency of 1 second.

Case Study:
DefCon is an organization that develops IT solutions for businesses. The product in consideration is
a system for supporting a magazine subscription business, where information about customers and
their subscribed products is collected, stored, and tracked. Currently, online subscriptions are not
possible, so the details of subscriptions are mailed to the business and entered into the system
manually. This business has around 45 employees with offices in Canberra, Sydney, and Perth. The
employees have an option to work from home, so the system supports remote access.
The basic architecture of the system is presented below:
Clients - Custom
Views
Workstations
Controller
Business rule
processing
Multiple layers
Database access
layer
Order and
customer
database (Model),

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