Information Systems for Business and Beyond Flashcards
the head of the information systems function and aligns the plans and operations of the information systems with the strategic goals of the function.
CIO: Chief Information Officer
Person in charge of setting information system policies for an organization, and then overseeing the implementation of those policies.
Information Security Officer:
the person who plans, develops, monitors and maintains databases that are used as part of applications or the data
warehouse.
Database Administrator:
A collection of facts, that is intangible.
Data
Processed data that possess context, relevance, and purpose.
Information:
Technology, people, and processes that allow us to take and transform meaningless data into useful information for decision making.
Information System (IS):
A subset, or one component of information systems that allow us to take and transform meaningless data into
useful information for decision making.
Information Technology (IT):
human beliefs or perceptions about relationships among facts or concepts relevant to that area.
Knowledge:
when a person can combine their knowledge and experience to produce a deeper understanding of a topic.(
Wisdom:
when a company successfully attracts more customers, earns more profit, or returns more value to its shareholders than rival firms do.
Competitive Advantage:
strategy where a firm offers customers its product or service at a lower price than its rivals can.
Example: Walmart
Cost Leadership:
strategy where a company tries to add value to their products and services so they can attract customers who are willing to pay a higher price.
Differentiation:
obstacles that make it difficult to enter a given market.
Entry Barrier:
strategy whereby a firm chooses to add value or lower costs for a smaller market.
Focus Strategy:
a plan to achieve advancements in technology or service by investing in research and development activities to meet previously unmet needs of buyers or meet their needs in a new way.
Innovation Strategy:
refers to performing the same operational tasks better than rivals perform them.
Operational effectiveness:
A framework to determine the profitability and attractiveness of a market:
- Industry Rivalry
- Bargaining Power of Buyers
- Bargaining Power of Suppliers
- Threat of New Entrants
- Threat of Substitute Products
Porter’s 5 Force Model:
refers to performing different activities from those of rivals, or the same activities in a different way.
Strategic positioning:
A set of activities that a firm operating in a specific industry performs in order to deliver a valuable product or service for the market.
Value Chain:
continuous and can be represented by smooth wave pattern.
Analog signals:
base-2 numeral system, which represents numeric values using two different symbols: 0 and 1.
Binary:
The smallest unit of data in a computer represented by one or zero.
Bit:
The electrical connection between different computer components that is an important determiner of the computer’s speed.
Bus:
A unit of data that computers use to represent a character such as a letter, number, or typographic symbol with a group of eight bits.
Byte:
The “brains” of the device, carries out the commands sent to it by the software and returns results to be acted
upon.
Central Processing Unit (CPU):
Where data is stored when the computer is turned off and where it is retrieved from when the computer is turned on.
Hard Disk:
A measure of computer processing speed.
Hertz:
states that the number of transistors on a microchip double about every two years, resulting in the cost being halved.
Moore’s Law:
The working, volatile memory that begins to load information from the hard disk as the computer starts up.
Random Access Memory (RAM):
non-volatile memory that permanently stores instructions for your computer.
Read Only Memory:
using a network of remote servers hosted on the Internet to store, manage, and process data, rather than a local
server or a personal computer. (4.3)
Cloud Computing:
Managing a company’s interactions with current and future customers. Often using technology to organize, automate, and synchronize sales, marketing, customer service, and technical support.
Customer Relationship Management (CRM):
Stores and retrieves the data that an application creates and uses.
Database Management System (DBMS):
A software application utilizing a central database that is implemented throughout the entire organization.
Enterprise Resources Planning (ERP):
a version of the Unix operating system that runs on a personal computer and is used primarily by scientists and engineers.
LINUX:
software that is rented rather than purchased. It is subscription-based.
Software as a service (SaaS):
one instance of a set of fields in a table.
Record:
Consistency among the stored data.
Data Integrity:
The structure and organization of data in a database
Data Hierarchy:
The use of a programming language to modify data in a database to make it easier to view or for the purpose of decision-making.
Database Manipulation:
the logical structure of the data items and their relationships.
Data Model:
shows the relationships among the tables of data when a database is being designed.
Entity Relationship Diagram (ERD):
contains only one file/table, with no relationships. A table created in a spreadsheet would be considered a flat file.
Flat File Database:
to design a database in a way that reduces data redundancy; and ensures data integrity.
Normalization:
A graphical query tool, to retrieve data though visualized commands.
Query-by-Example (QBE):
the rows of the table.
Record:
data that is repeated in a database, which can cause the data set to be inconsistent.
Redundant Data:
Developed to provide an overall description of the database.
Schema:
The most common language for creating and manipulating databases. SQL inhabiting everything from
desktop software, to high-powered enterprise products.
Structured Query Language (SQL):
An early packet switching network that was originally developed by the US Department of Defense.
ARPANET (Advanced Research Projects Agency Network):
A network device that connects two networks together and only allows packets through that are needed.
Bridge:
acts as a directory on the Internet when a request to access a device with a domain name is given.
Domain Name System (DNS):
A descriptive text followed by the top level domain that is human friendly name for a device on the internet.
Domain Name:
the end of the domain name that indicates type of organization, such as .com, .org, .net, .edu…etc.
Domain Name Extension:
An intranet that can be partially accessed by authorized outside users, enabling businesses to exchange information over the Internet
securely.
Extranet:
ISP
Internet Service Provider
A local or restricted communications network
Intranet:
A unique identifying number assigned to every device that communicates on the internet.
IP Address:
network that connects computers and other devices in a relatively small area, typically a single building or a
group of buildings.
LAN: Local Area Network
Spans a larger area like a city or region
Metropolitan Area Network (MAN):
large network that connects computers at different
sites via telecommunications media such as phone lines, satellites, and microwaves
wide area network (WAN)
Converts the format of the data so it may be transmitted between computers.
Modem:
The fundamental unit of data transmitted over the internet. Each packet includes the sender’s address, the destination address, a sequence number and piece of the overall message to be sent.
Packet:
When a packet is passed from one router to another across the Internet until it reaches its destination.
Packet Switching:
A specific set of communication rules used by computers.
Protocol:
A device that receives and analyzes packets and then routes them towards their destination.
Router:
Manages network resources or performs special tasks such as storing files, managing one or more printers, or processing database queries.
Server:
Defines how electronic devices should be connected over the Internet, and how data should be transmitted between them.
TCP/IP: Transmission Control Protocol / Internet Protocol.
A method employing encryption to provide secure access to a remote computer over the Internet.
VPN: Virtual Private Network
Refers to systems in which non-programmers can create working applications.
End-User Computing: