Data and Database Management Flashcards
It is a collection of text, numbers, symbols, images, or videos in raw or unorganized form.
Data
What has to be processed or provided with a context, before it can have meaning?
Data
It describes the object under consideration using a finite set of discrete classes.
Qualitative or Categorical Data
This type of data can’t be counted or measured easily using numbers and therefore divided into categories.
Qualitative or Categorical Data
Since qualitative data can’t be counted or measured easily using numbers, it is therefore divided into what?
Categories
This type of data are usually extracted from audio, images, or text medium.
Qualitative or Categorical Data
What are the two subcategories of qualitative data?
Nominal
Ordinal
The values grouped into these categories have no meaningful order and no hierarchy.
Nominal
What are the examples of Nominal level values?
Gender
Occupation
These types of values have a natural ordering while maintaining their class of values.
Ordinal
What is the example for the Ordinal level value?
Ranking of student’s grades
This data type tries to quantify things and it does by considering numerical values that make it countable in nature.
Quantitative Data
What are the two subcategories of quantitative data?
Discrete
Continuous
The numerical values which fall under are integers.
Discrete
Which category is it where whole numbers are placed?
Discrete
What is the example of Discrete?
Number of clothes in a cabinet
The fractional numbers are considered as continuous values.
Continuous
What are the examples of Continuous?
Days in a week
Months in a year
It is an organized or classified data, which has some meaningful values for the receiver.
Information
It is the processed data on which decisions and actions are based.
Information
For the decision to be meaningful, the processed data must qualify what characteristics?
(CAT)
Completeness
Accuracy
Timely
This characteristic of information means that it should be available when required.
Timely
This characteristic of information means that it should be accurate.
Accuracy
This characteristic of information means that it should be complete.
Completeness
It refers to the raw input that when processed or arranged, makes meaningful output.
Data
It is usually the processed outcome of data.
Information
What happens when data is processed into information?
It becomes interpretable and gains significance.
What is done before data becomes interpretable and gains significance?
Data is processed into information
What is the equation for information?
Data + Meaning = Information
It is produced as a result of understanding the given information and using that information to gain knowledge of how to solve problems.
Knowledge
Knowledge can be what?
- Acquiring and remembering a set of facts
- The use of information to solve problems
What are the two types of knowledge?
Explicit Knowledge
Tacit Knowledge
It is the acquisition by a person of information or the understanding of information.
Explicit Knowledge
This knowledge can be easily passed on to others.
Explicit Knowledge
Most forms of explicit knowledge can easily be stored in certain media like what?
Documents
Books
Computers
This is documented information that can facilitate action.
Explicit Knowledge