AIS 1: Chapter 5 - System Analysis

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Questions and Answers

What is the primary purpose of systems analysis?

To redesign a system to improve its performance

To validate system requirements against technology

To decompose a system into its component parts for study (correct)

To document project correspondence and reports

How does systems design differ from systems analysis?

Systems design reassembles components into an improved system. (correct)

Systems design focuses solely on data collection.

Systems design is only concerned with user interface.

Systems design avoids any modifications to the original system.

What role does a repository play in systems analysis and design?

It is a type of software for developing databases.

It serves as a tool for visual modeling.

It acts as an interface for user feedback collection.

It stores documentation related to systems and projects. (correct)

What does model-driven analysis emphasize?

The creation of pictorial models to validate systems. Signup and view all the answers

Which of the following best describes structured analysis?

A model-driven approach centered on processes. Signup and view all the answers

What is the primary focus of information engineering (IE)?

It is a model-driven and data-centered technique. Signup and view all the answers

What does object-oriented analysis (OOA) integrate into its modeling technique?

Data and process concerns into objects. Signup and view all the answers

What is the ultimate goal of model-driven analysis methods?

To develop improvements based on system models. Signup and view all the answers

In systems analysis terminology, what is a 'model' primarily understood as?

A representation of reality or vision. Signup and view all the answers

Which of the following best describes an object in the context of a simple data model?

The encapsulation of data and allowed processes. Signup and view all the answers

What is the purpose of a prototype in accelerated systems analysis?

To rapidly identify requirements from users. Signup and view all the answers

What is NOT a focus of information systems analysis?

Analyzing user experience Signup and view all the answers

In information engineering, how are models described?

As pictures illustrating components, processes, inputs, outputs, and files. Signup and view all the answers

Which method is often used in requirements discovery?

Collecting information through fact-finding. Signup and view all the answers

What characterizes a simple process model?

It defines how data should be manipulated or used. Signup and view all the answers

What do OOA models illustrate about the system's objects?

Their interactions and behaviors from various perspectives. Signup and view all the answers

What is the primary goal of business process redesign (BPR)?

To dramatically change and improve fundamental business processes Signup and view all the answers

Which technique involves gathering system owners, users, and analysts for facilitated workshops?

Joint Requirements Planning (JRP) Signup and view all the answers

What misconceptions can arise from the use of prototypes in systems analysis?

They can mislead users into believing that the final system can be built quickly Signup and view all the answers

In rapid architected analysis, what is the primary objective?

To derive system models from existing systems Signup and view all the answers

Which of the following statements describes joint application development (JAD)?

It involves collaborative workshops for system analysis Signup and view all the answers

What is a potential disadvantage of using discovery prototyping?

It can lead to premature focus and commitment to design Signup and view all the answers

What approach does the agile method integrate?

Various approaches of systems analysis and design Signup and view all the answers

Which of the following best represents the user perspective in prototyping?

Users often say, 'I'll know what I want when I see it' Signup and view all the answers

What is reverse engineering used for in the context of system development?

Reading existing program code to create a system model Signup and view all the answers

Which phase involves determining the worth of a project?

Scope Definition Phase Signup and view all the answers

What is the main goal of the Requirements Analysis Phase?

To identify user needs and wants for the new system Signup and view all the answers

In the context of the FAST methodology, what is the logical result of cause-and-effect analysis?

Finding deep-rooted problems and their effects Signup and view all the answers

What characterizes commercial methodologies in system analysis?

The integration of multiple popular approaches Signup and view all the answers

What describes an objective in system improvement?

A specific measure of success to achieve with resources Signup and view all the answers

During which phase is the focus on evaluating the best solution for system development?

Decision Analysis Phase Signup and view all the answers

What is a common objective related to customer accounts?

Reduce uncollectible accounts by 50 percent within a year Signup and view all the answers

What is a constraint in the context of project development?

A limitation that cannot be changed during solution definition. Signup and view all the answers

Which of the following best describes a functional requirement?

A description of activities and services the system must provide. Signup and view all the answers

What is the role of a steering body in project management?

To prioritize competing project proposals for value return. Signup and view all the answers

Which of the following is an example of a nonfunctional requirement?

The system should have a user-friendly interface. Signup and view all the answers

What does schedule feasibility refer to in project management?

The ability to deliver the project on time. Signup and view all the answers

What is a project charter?

A document that outlines project scope and methodology. Signup and view all the answers

What are use cases used for in systems analysis?

To express functional requirements through business scenarios. Signup and view all the answers

What is timeboxing in the context of prioritizing system requirements?

Setting a strict deadline for completion of requirements. Signup and view all the answers

Study Notes

Systems Analysis vs. Systems Design

Systems analysis decomposes a system into its components to study interactions and effectiveness.
Systems design reassembles components into an improved system, allowing modifications and improvements.
A repository stores documentation related to systems, including project correspondence, reports, and data.

Model-Driven Analysis Methods

Model-driven analysis emphasizes visual models to document and validate systems.
Structured analysis focuses on process-centered techniques for analyzing and defining systems.
Information engineering (IE) synchronizes data and processes through visual representation.
Object-oriented analysis (OOA) combines data and process concerns, illustrating objects' structure and behavior.

Requirements Discovery Methods

Requirements discovery involves identifying system problems and solutions through various techniques.
Fact-finding methods include analyzing existing documentation, observing systems, and conducting interviews.
Joint requirements planning (JRP) brings together stakeholders for collaborative systems analysis.
Business process redesign (BPR) applies systems analysis to improve fundamental business processes.

Accelerated Systems Analysis

Accelerated systems analysis uses prototypes to identify user requirements quickly.
Discovery prototyping allows users to respond to preliminary system designs.
Rapid architected analysis derives models from existing systems and prototypes.

Agile Methods

Agile methods integrate various systems analysis approaches without imposing a single structure.
Developers can choose tools and techniques based on project needs, enhancing flexibility in development.

Phases of Systems Analysis

Scope Definition Phase determines project worth and feasibility of developing a new system.
Problem Analysis Phase assesses issues and drives toward understanding root causes.
Requirements Analysis Phase captures user needs and desired functionalities.
Logical Design Phase defines what the system must accomplish.
Decision Analysis Phase evaluates the best solution to meet system objectives.

Objectives and Constraints

Objectives measure success, such as reducing uncollectible accounts or increasing application processing.
Constraints limit flexibility in defining solutions, like budget or operational deadlines.
A steering body prioritizes project proposals for optimal organizational value.

Functional vs. Nonfunctional Requirements

Functional requirements describe specific activities and services the system must deliver.
Nonfunctional requirements include system features like performance, security, and usability.

Expressing System Requirements

System improvement objectives can be listed or defined through use cases.
Use cases outline business scenarios representing required system responses.

Prioritization of Requirements

Prioritization can be facilitated through techniques like timeboxing to manage system development efficiently.

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Description

Explore the critical differences between systems analysis and systems design in this quiz. Understand key concepts such as the repository and the role of systems analysts in problem-solving techniques. Test your knowledge on the components and processes involved in system analysis.