INF1505 - PRINCIPLES OF BUSINESS INFORMATION SYSTEMS
QUESTIONS AND ANSWERS LATEST UPDATE A+ GRADED
System
A set of elements or components that interact to accomplish goals
Components of a system
A systems four components consist of input, processing, output and feedback
Efficiency
Is a measure of what is produced divided by what is consumed.
Effectiveness
Is a measure of the extent to which a system achieves its goals
System performance standard
A specific objective of the system
Information System (IS)
A set of interrelated components that collect, manipulate, store and disseminate
information and provide a feedback mechanism to meet an objective
Input
The activity of gathering and capturing data
Processing
Converting or transforming input into useful outputs
Output
Production of useful information, often in the form of documents and reports
Feedback
Output that is used to make changes to input
Forecasting
Predicting future events
Characteristics of Valuable Information
Accessible
Accurate
Complete
Economical
Flexible
Relevant
Reliable
Secure
Simple
Timely
Verifiable
Computer-based Information System (CBIS)
A single set of hardware, software, databases, telecommunications, people, and
procedures that is configured to collect, manipulate, store and process data into
information.
Technology Infrastructure
All the hardware, software, databases, telecommunications, people, and procedures
that are configured to collect, manipulate, store and process data into information.
, Hardware
Any machinery (most of which uses digital circuits) that assists in the input, processing,
storage, and output activities of an information system.
Software
The computer programs that govern the operation of a particular computing device, be it
desktop, laptop, tablet computers.
Database
An organised collection of electronic information
Telecommunications
The electronic transmission of signals for communications; enables organisations to
carry out their processes and tasks through effective computer networks
Networks
Computers and equipment that are connected in a room, building, Campus, city, across
the country or around the world to enable electronic communications.
Internet
The world's largest computer network, actually consisting of thousands of
interconnected networks, all freely exchanging information.
Cloud Computing
A computing environment where software and storage are provided as an Internet
service and are accessed via a web browser.
A means of providing computer services wherein a serve provider organization owns
and manages the hardware, software, networking and storage devices, with cloud user
organizations(called tenants) accessing slices of shared resources via the internet.
Intranet
An internal company network built using Internet and World Wide Web standards and
products that allows people within an organisation to exchange information and work on
projects.
Extranet
A network based on web technologies thats allows selected outsiders, such as business
partners, suppliers or customers, to access authorised resources of a company's
intranet.
Procedures
The strategies, policies, methods, and rules for using CBIS.
Business Information System Types
Strategic Level : Executive Support Systems - Support long-term, strategic decisions
made by senior managers
Tactical Level : Management information systems & Decision support Systems -
Support mid-term decisions made by middle managers
Operational Level : Transaction Processing Systems, Customer Relationship
Management Systems & Supply Chain Management Systems - Support the dat-to-day
running of the firm
Transaction
Any business related exchange, such as payments to employees, sales to customers
and payments to suppliers.
QUESTIONS AND ANSWERS LATEST UPDATE A+ GRADED
System
A set of elements or components that interact to accomplish goals
Components of a system
A systems four components consist of input, processing, output and feedback
Efficiency
Is a measure of what is produced divided by what is consumed.
Effectiveness
Is a measure of the extent to which a system achieves its goals
System performance standard
A specific objective of the system
Information System (IS)
A set of interrelated components that collect, manipulate, store and disseminate
information and provide a feedback mechanism to meet an objective
Input
The activity of gathering and capturing data
Processing
Converting or transforming input into useful outputs
Output
Production of useful information, often in the form of documents and reports
Feedback
Output that is used to make changes to input
Forecasting
Predicting future events
Characteristics of Valuable Information
Accessible
Accurate
Complete
Economical
Flexible
Relevant
Reliable
Secure
Simple
Timely
Verifiable
Computer-based Information System (CBIS)
A single set of hardware, software, databases, telecommunications, people, and
procedures that is configured to collect, manipulate, store and process data into
information.
Technology Infrastructure
All the hardware, software, databases, telecommunications, people, and procedures
that are configured to collect, manipulate, store and process data into information.
, Hardware
Any machinery (most of which uses digital circuits) that assists in the input, processing,
storage, and output activities of an information system.
Software
The computer programs that govern the operation of a particular computing device, be it
desktop, laptop, tablet computers.
Database
An organised collection of electronic information
Telecommunications
The electronic transmission of signals for communications; enables organisations to
carry out their processes and tasks through effective computer networks
Networks
Computers and equipment that are connected in a room, building, Campus, city, across
the country or around the world to enable electronic communications.
Internet
The world's largest computer network, actually consisting of thousands of
interconnected networks, all freely exchanging information.
Cloud Computing
A computing environment where software and storage are provided as an Internet
service and are accessed via a web browser.
A means of providing computer services wherein a serve provider organization owns
and manages the hardware, software, networking and storage devices, with cloud user
organizations(called tenants) accessing slices of shared resources via the internet.
Intranet
An internal company network built using Internet and World Wide Web standards and
products that allows people within an organisation to exchange information and work on
projects.
Extranet
A network based on web technologies thats allows selected outsiders, such as business
partners, suppliers or customers, to access authorised resources of a company's
intranet.
Procedures
The strategies, policies, methods, and rules for using CBIS.
Business Information System Types
Strategic Level : Executive Support Systems - Support long-term, strategic decisions
made by senior managers
Tactical Level : Management information systems & Decision support Systems -
Support mid-term decisions made by middle managers
Operational Level : Transaction Processing Systems, Customer Relationship
Management Systems & Supply Chain Management Systems - Support the dat-to-day
running of the firm
Transaction
Any business related exchange, such as payments to employees, sales to customers
and payments to suppliers.
