CHAPTER 1 Flashcards
a group of two or more interrelated components or subsystems that serve a common purpose
system
A system must contain more than one part.
MULTIPLE COMPONENTS
A common purpose relates the multiple parts of the system
RELATEDNESS
. The distinction between the terms system and subsystem is a matter of perspective.
SYSTEM VERSUS SUBSYSTEM
A system must serve at least one purpose, but it may serve several.
PURPOSE
the process of dividing the system into smaller subsystem parts.
Decomposition
A system’s ability to achieve its goal depends on the effective functioning and harmonious interaction of its subsystems
SUBSYSTEM INTERDEPENDENCY
the set of formal procedures by which data are collected, processed into information, and distributed to users.
information system
the set of formal procedures by which data are collected, processed into information, and distributed to users.
information system
an event that affects or is of interest to the organization and is processed by its information system as a unit of work
transaction
an economic event that affects the assets and equities of the organization,
is reflected in its accounts, and is measured in monetary terms.
financial transaction
events that do not meet the narrow definition of a financial transaction
Nonfinancial transactions
supports daily business operations with numerous reports, documents, and messages for users throughout the organization
transaction processing system (TPS)
produces the traditional financial statements, such as the income statement, balance sheet, statement of cash flows, tax returns, and other reports required by law
general ledger/financial reporting system (GL/FRS)
provides internal management with special-purpose financial reports and information needed for decision
making such as budgets, variance reports, and responsibility reports.
management reporting system (MRS),
processes nonfinancial transactions that are not normally processed by
traditional AIS.
management information system (MIS)
facts, which may or may
not be processed (edited, summarized, or refined) and have no direct effect on the user.
Data
causes the user to take an action that he or she otherwise could not, or would not, have taken.
information
financial transactions that enter the information system from both internal and external sources.
Data sources
the first operational stage in the information system
Data collection
Once collected, data usually require processing to produce information.
Data Processing
physical repository for financial and nonfinancial data
database
the most elemental piece of potentially useful data in the database
data attribute
a complete set of attributes for a single occurrence within an entity class.
record
a complete set of records of an identical class.
file
the process of compiling, arranging, formatting, and presenting information to
users.
Information generation
The contents of a report or document must serve a purpose.
RELEVANCE
The age of information is a critical factor in determining its usefulness
TIMELINESS
Information must be free from material errors
ACCURACY
No piece of information essential to a decision or task should be missing
COMPLETENESS
Information should be aggregated in accordance with the user’s needs
SUMMARIZATION