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ACC 300 Exam 2 Questions & Answers 2024/2025
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ACC 300 Exam 2 Questions & Answers 2024/2025 Flat file database - ANSWERSa traditional data file storage system traditional debit/credit, journal ledger AIS architecture Data files are owned or only used by specific application programs Drawbacks of Flat Files databases - ANSWERSDatas s...

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  • October 15, 2024
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  • 2024/2025
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ACC 300 Exam 2 Questions & Answers
2024/2025

Flat file database - ANSWERSa traditional data file storage system

traditional debit/credit, journal ledger AIS architecture

Data files are owned or only used by specific application programs



Drawbacks of Flat Files databases - ANSWERSDatas storage: data redundancy results in multiple data
collection actions and duplication

Data updating: requires significant coordination across user groups

Currency of Information: outdated data if updates are not disseminated

Task-Data Dependency: different technologies and data storage formats make data difficult;t to share



Database Model - ANSWERSPools data in one centralized location for use by all users

All data is shared and is entered in the system once; the problem of data redundancy is minimized

Updates can be performed with just a single occurrence; kept current for all users



Database Management System (DBMS) - ANSWERSOperating software that lies between eh data and the
user applications

The DBMS holds all logical data structures and controls access to the data base



The Relational Database Model - ANSWERSThe relational model represents data in two dimensional
tables called "relations"-mathematical terms for table

Use relation and table interchangeably

Several tables from the structure of a relational database



The REA Approach - ANSWERSThe REA model is based upon a database philosophy- data is critical to all
users

It is model oriented rather than account oriented

, User View - ANSWERSa user view is the set of data in a particular format that a given user needs to
perform his/her responsibilities

Traditional accounting systems have not evolved to address the many user views and still embody the
preparer's view rather than the user's views, especially in the area of including non financial information
with the financial information reports



The REA Model - ANSWERSresources, events, agents



Resources - ANSWERSrefer to the things of economic value (assets) of the organization that are not
scarce and under the control of the organization



Events - ANSWERSrefers to activities that affect changes in resources, such as production, exchange,
consumption, and distribution

will focus on economic events that result in data to be accessed, recorded or stored in the database.

not support events

Ex: sales, orders, cash disbursements, picking, inventory (financial and non-financial events)



Agents - ANSWERSrefer to the individuals, departments, or locations that take part in an economic event

there can be "internal" and "external" agents



Duality - ANSWERSbecause each economic event involves two agents, one who gives and another who
receives there is a "duality" in the model



Developing the REA Model - ANSWERSSystematically identify the set of data needed to aid a decision
maker and then construct an information system model to support the decision maker

The key and starting point is a focus on economic events in the REA model

The remaining steps follow systematically



Step 1 of the REA Model - ANSWERSIdentify the Events Entities

list the key event entities for the business process or transaction cycle using UML association notation

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