Systems Analysis Chapter 6

Questions and Answers

What is the primary function of systems design in relation to systems analysis?

To gather requirements for the system

To determine the cost of the system

To define how the system will be implemented (correct)

To evaluate user satisfaction with the system

Which of the following statements best contrasts systems analysis with systems design?

Both processes have similar goals and outputs.

Systems analysis is more technical than systems design.

Systems design is only concerned with user interfaces.

Systems analysis identifies the needs while design outlines implementation methods. (correct)

In the context of systems design, what is a critical component that bridges the gap between requirements and implementation?

System evaluation

Final project review

User training

Detailed design activities (correct)

What are design activities primarily used for in systems design?

To specify documents and models as system outputs Signup and view all the answers

Which of the following best describes system controls and security within systems design?

They are integrated to protect system integrity and user data. Signup and view all the answers

What is the primary objective of design in systems development?

To define, organize, and structure the components of the final solution Signup and view all the answers

Which statement accurately describes the role of analysis in systems design?

Analysis provides the starting point for design Signup and view all the answers

How do design activities correspond in the context of a new system?

They correspond to all major components of the new system Signup and view all the answers

In agile or iteration projects, what is typically true about model creation?

Fewer models are built, but some are still necessary Signup and view all the answers

What can result from jumping straight to programming without adequate design?

Less than optimum solutions and potential rework Signup and view all the answers

Which of the following is NOT a component considered in design activities?

Marketing strategy Signup and view all the answers

What dictates the type and complexity of models built during design?

The formality of the project Signup and view all the answers

What is the starting point for the implementation phase in the systems development lifecycle?

Design results Signup and view all the answers

What are the three components of the fraud triangle?

Opportunity, Motive, Rationalization Signup and view all the answers

What is the primary goal of designing security controls?

To protect information and transactions during transmission Signup and view all the answers

What does authentication in access controls achieve?

It identifies users attempting to access resources. Signup and view all the answers

Which of the following defines 'Privileged Users'?

Users who maintain lists and systems. Signup and view all the answers

What is the purpose of an access control list?

To identify valid users authorized to access resources. Signup and view all the answers

Which of the following factors is NOT part of fraud risk assessment?

Employee training programs Signup and view all the answers

Which category does an 'Unauthorized User' belong to?

A user that has not been registered in the system. Signup and view all the answers

What is one of the objectives of maintaining a stable operating environment?

Protecting operating systems and equipment 24/7 Signup and view all the answers

What is the primary requirement for an Information System?

Data typically stored in a database Signup and view all the answers

Which type of database management system is commonly used with current technology?

Relational Database Management System (RDBMS) Signup and view all the answers

What is one of the key components addressed when converting a data model to a relational database?

Throughput and response time Signup and view all the answers

Which type of diagram is NOT typically part of the detailed design phase?

Gantt Chart Signup and view all the answers

What do integrity controls in a system primarily aim to protect?

The integrity of inputs, outputs, and data Signup and view all the answers

Which of the following best defines security controls in a system?

Measures to protect assets from threats Signup and view all the answers

Which of the following is NOT typically included in a design class diagram?

Entity relationships Signup and view all the answers

What is a primary focus when creating sequence diagrams during detailed design?

Visualizing object interactions over time Signup and view all the answers

What is the primary purpose of data encryption?

To secure data while stored or in transmission Signup and view all the answers

What does the encryption algorithm do?

Transforms data into an unrecognizable format Signup and view all the answers

What distinguishes asymmetric key encryption from symmetric key encryption?

It requires a private key and a public key. Signup and view all the answers

Which statement is true about digital signatures?

They verify the authenticity of a document. Signup and view all the answers

What is the role of a certifying authority in digital certificates?

To encrypt and certify organizations' identities. Signup and view all the answers

What is an encryption key?

A long data string that produces unique encryptions. Signup and view all the answers

Which of the following statements about symmetric key encryption is correct?

It requires the same key for both encryption and decryption. Signup and view all the answers

What is a digital certificate?

An organization's name and public key that are encrypted and certified. Signup and view all the answers

Study Notes

Overview of Systems Design

Systems design determines "how" a system will be structured and constructed following "what" is required from systems analysis.
Objectives of design include defining, organizing, and structuring components to serve as a blueprint for implementation.

Design Models and Activities

Design is a model-building activity; the complexity varies with project formality.
Agile projects tend to create fewer but essential models; skipping design leads to suboptimal solutions requiring rework.
Key design areas include environment, application components, user interface, database, and software classes.

Database Design

Information systems rely on data typically stored in a relational database.
Transitioning from a data model to a relational database involves addressing technical issues like throughput, response time, and security.

Software Classes and Methods

Detailed design includes creating class diagrams, sequence diagrams, and state-machine diagrams to define software components.

Controls and Security

Integrity controls ensure the accuracy and consistency of data during inputs, outputs, and processing.
Security controls protect system assets from both internal and external threats.

Fraud Prevention

Preventing fraud is critical, with the "Fraud Triangle" highlighting opportunity, motive, and rationalization as key factors in understanding fraud risks.

Designing Security Controls

The design of security measures focuses on protecting assets from external threats while ensuring a stable operating environment.
Access control mechanisms include authentication, authorization, and user classifications (registered, unauthorized, privileged).

Data Encryption

Encryption secures data, rendering it unrecognizable until decrypted through an algorithm and a unique encryption key.
Symmetric key encryption uses the same key for both encryption and decryption, while asymmetric key (public key) encryption uses different keys.

Digital Signatures and Certificates

Digital signatures create a secure way to verify authenticity by encrypting documents with a private key.
Digital certificates authenticate an organization's identity, certified by a trusted third party known as a certifying authority, integrated into web browsers for widespread recognition.

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Description

This quiz focuses on Chapter 6 of 'Systems Analysis and Design in a Changing World'. It covers key concepts such as systems design, design activities, and system controls and security. Test your understanding of these foundational topics in systems design.