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AIS Exam 2 2024 Questions & Answers 100% CORRECT
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AIS Exam 2 2024 Questions & Answers 100% CORRECT CASE (Computer-assisted software engineering) Tools - ANSWERSspecialized graphical documentation software used to automate such documentation tasks as drawing or modifying flowcharts, drawing graphics and screen designs, developing reports, and ...

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  • August 10, 2024
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AIS Exam 2 2024 Questions & Answers
100% CORRECT

CASE (Computer-assisted software engineering) Tools - ANSWERSspecialized graphical documentation
software used to automate such documentation tasks as drawing or modifying flowcharts, drawing
graphics and screen designs, developing reports, and even generating code from documentation



CASE tools are to flowcharts what word processors are to text documents

-run on personal computers

-Examples: iGrafx, allCLEAR, SmartDraw, Visio



Context Diagram - ANSWERShigh-level DFD which provides an overview of a system; shows the input and
output of the application, as well as the data sources and destinations external to the application.

Uses rectangles to identify external entities (despite being internal to the company: external to the
system)

The data flow lines connecting these entities to and from the system are system interfaces



-example: payroll processing



Data flow diagrams (DFDs) - ANSWERSprimarily used in the systems development process to document
the flow of data through an AIS



for example- used as a tool for analyzing an existing system or as a a planning aid for creating a new
system



a DFD describes the sources of data stored in a database and the ultimate destinations of these data



Decision table - ANSWERSwhen a computer program involves a large number of conditions and
subsequent courses of action, its program flowchart tends to e large and complex

,A decision table is a table of conditions and processing tasks that indicates what action to take for each
possibility. Sometimes, decision tables are used as an alternative to program flowcharts, but more
commonly used in conjunction



Decomposition - ANSWERSthe task of creating detail in DFDs for more complex systems



becomes necessary because DFD designers try to limit each level diagram to between five and seven
processing symbols (circles)



5-7 processing symbols



Document Flowchart - ANSWERStraces the physical flow of documents through an organization- that is,
the flow of documents from the departments, groups, or individuals who first created them to their final
destinations



provide more details about documents than do DFDs



-Traces the physical flow of documents through an organization

-Used to analyze systems for weaknesses in control and reports

-Begins by identifying departments and groups that handle the documents



Documentation - ANSWERSincludes the flowcharts, narratives, and other written communications that
describe the inputs, processing, and outputs of an AIS



End-user computing - ANSWERSrefers to the ability of non-IT employees to create computer applications
of their own.



Today, we take much of this computing for granted- for example, when employees manipulate data with
word processing, spreadsheet, database management systems, or tax packages- because all of these
programs were developed to allow end users to develop applications for themselves

, Graphical Documentation - ANSWERSaccountants, consultants, and system developers can use a variety
of software tools to create graphical documentation of existing or proposed AISs.

The simplest tools include presentation software, such as PowerPoint, as well as word processing and
spreadsheet software such as Word and Excel



The advantages of using such tools closely parallel those of using word processing software instead of
typewriters



Job Stream - ANSWERSsystem flowcharts depict an electronic JOB STREAM of data through the various
processing phases of an AIS and therefore also illustrate audit trails. Each time the records of a file are
sorted or updated, for example, a system flowchart should show this in a separate processing step



Level 0 DFD - ANSWERSshows only in broad terms what tasks a system performs

most systems are more complex than this and require more detail to describe them completely



Exploded into successive levels of detail

3.0- Process paycheck



Level 1 DFD - ANSWERSan "explosion" of a particular caption/process in a level 0 DFD

expounds upon the particular process described in the preceding level diagram



3.1- Compute gross pay

3.2- Compute payroll deductions



Ex. "Process Paycheck" caption shown to entail computing gross pay, payroll deductions, and net pay



Logical data flow diagrams - ANSWERSnecessary for showing reader what internal and external entities
participating in a process actually do



*identifies what participants do

*bubble indicates a task the system performs

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