Lec 1: Ch 1 - Information Systems Flashcards
System
Set of parts working together towards a common goal
Systems thinking approach
Looks at an entire process and see how each part works together (rather than just looking at one component)
Information Systems
Contain interrelated components (tech, ppl, process) that transform meaningless data into useful info.
Eg. paper notebook or IBM’s $15B AI system Watson
Information Technology
Subset of IS; IS also contains people and processes
Hardware
Tangible, physical portion of an information system
eg. Computers, keyboards, disk drivers
Software
Set of instructions that tell the hardware what to do
Two categories: Operating systems (OS) and Application software (AS)
OS
provides the interface between the hardware and the Application software
Eg. Windows, IOS, Linux
Networking Communication
internet connection that is made up of both hardware and software but now deserves it’s own category
People
Component of IS that studies is involved with IS in every way
eg. User support staff, developers, Chief Info Officer (CIO)
Process
Series of steps undertaken to achieve a desired outcome
Goal for businesses: Improve this both internally and externally
Data
The power to the information system engine; a collection of facts; intangible
Most powerful when aggregated, organized together into a database
Eg. your street, city, state, postal code
8 values of Data Qualities
CCCCRAAT
Consistent
Complete
Cost
Clear
Relevant
Accessible
Accurate
DIKW Pyramid
4 components:
Wisdom
Knowledge
Information
Data
Data: raw facts
Info: raw facts with context and relevance
Knowledge: Human perceptions about relationships among facts
-Explicit: can be expressed in words to numbers
-Tacit: Includes insight, need to do it to learn
Wisdom: Combining knowledge and experience to produce deeper understanding
Tech in professions: Accounting
Others include Finance, marketing, HR (linkedin), supply chain and law
Built on the foundation of technology; numbers are all recorded in IS.
Numbers need to be correct or else there is jailtime, hence this and tech have been working hand in hand
Creators
First group of people in designing, developing IS
- System Analyst
- Programmer
- Computer Engineer