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Data Analytics E - L Flashcards

1
Q

Economic Constraint

A

A limitation imposed by time or finances

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2
Q

Effective

A

A solution that performs as intended

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3
Q

Efficient

A

A solution that saves time, cost and effort

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4
Q

electronic validation

A

a databases ability to detect limited types of errors in data that have been keyed, such as incorrect numbers entered for a postcode or certain boxes being empty, and then notify the data-entry operator of the error

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5
Q

Encryption

A

Encoding or changing data so if the data was read by an unauthorized user they would not be able to understand the data

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6
Q

Entity

A

A single person / place / or thing about which data can be stored

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7
Q

Ethernet protocol

A

A set of rules about how data is communicated in wired networks

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8
Q

Ethics

A

The principles of right and wrong, which are accepted byu an individual or a social group; ethical behaviour often guides policy-maklers within organisations

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9
Q

Evaluation

A

Assessing whether a solution achieves the goals for which it was originally designed; not the same as testing!

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10
Q

Evaluation Crtieria

A

Rules set out during design that include effectiveness and efficiency criteria; based on the SOLUTION REQUIREMNTS that were defined during analysis

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11
Q

Event-based threat

A

A threat to data or an information system that is a result of a natural event; this can include fires, floods, storms, etc.

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12
Q

Existence check

A

A validation that ensures a field has data entered into it

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13
Q

Fair Test

A

Changing only one factor at a time in a test, and keeping all the other conditions the same

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14
Q

Fibre-Optic Cabling

A

A wired transmission media containing shards of glass that reflect pulses of light generated by small lasers or LED’s

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15
Q

Field

A

An item of data in a database; the same field for a series of records will contain the same data type

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16
Q

Filter

A

A process that only displays records that meet the set criteria

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17
Q

Firewall

A

Software that monitors all incoming and outgoing internet traffic to and from a LAN; a firewall examines the contents of each data packet and determines if the data packet should be allowed access to the LAN

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18
Q

1st Normal Form (1NF)

A

A table with no repeating groups. No single row has a column containing more than one value or more than one column with the same kind of value.

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19
Q

Flat File Database

A

A database that stores data in tables consisting of rows and columns; also called a single table database

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20
Q

Flow Visualisation

A

representing data that illustrates the flow pattern of an object or item

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21
Q

Foreign Key

A

A common linking field; a key in a database defined in a second that that refers to a primary key in the first

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22
Q

form

A

A window with input fields into which a user enters and submits data for processing. Forms replace paper based forms, and have features like checkboxes, radio buttons, text fields, mandatory fields, sign up forms, online purchases, etc.

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23
Q

format

A

How something is displayed (using a table or chart, etc); arranging the look / presentation of an object

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24
Q

frequency distribution table

A

A table that summarizes values and frequency in two columns

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25
Full backup
Backing up all of an organisations data and information at on time
26
Functional Requirement
Directly related to what the solution will do
27
Fuzzy Logic
Lying between True and False
28
Gantt Chart
A chart that tracks the progress of a project by placing tasks on a timeline, often with comments or annotations
29
Geographic information
An infographic using location to place data information; similar to a geospatial infographic, it visualises data onto countries rather than physical geography
30
Geographic Information System
A File Format that contains geographical data
31
Geospatial visualisations
Where information is coded onto a map to illustrate the data (also known as a map based visualisation)
32
graph
A visual representation of data showing the relationships between several elements
33
Hard Disk Drive (HDD)
A magnetic platter with a read/write mechanism
34
Hardware loss
When a device or hardware components is lost by accident
35
Hardware OR software malfunction
If the hardware or software stops working as intended
36
Hardware security controls
Hardware-Based measures that are used to protect data and information
37
Hierarchical Infographic
Stacking items or subjects based on levels of importance, difficulty, income and so on.
38
Hierarchy visualisation
Shows the relationships and structure between data items (a single hierarchial chart)
39
histogram
A chart / visual tool using bars to show distribution within a range
40
Image data
Any stored images used to generate information
41
Incremental backup
Creating a fullbackup from time to time(i.e. weekly) and performing a partial backup inbetween full backups
42
Infographic
visual representation of data, usually combining several charting and text tools
43
Information
Useful knowledge created by manipulating data
44
Information need
When particular information is required, yet is not being currently supplied; causes of an information need may include a current problem, an identified need or an opportunity
45
Information system (The 5 components of one)
Software, Hardware, People, Processes and Data
46
Informational Infographic
A list based visual that is composed mostly of text
47
Input
The process of entering data into a system
48
Input Hardware
Equipment that allows data to be entered into a computer system, such as a keyboard, mouse or joystick
49
Input mask
A control applied to how data is entered that can be set to accept a specified number of digits, dates or characters in a commonly accepted format (DD-MM-YYYY for date is an input mask)
50
Input Process Output
An IPO diagram used to identify inputs and the processing steps required to transform the inputs into the outputs
51
Integer
A number without a fractional or decimal component
52
Intellectual Property (IP)
The ideas and works created by an individual or organisation
53
Intended user
Target Audience; that is, people expected to use the product
54
Interactive visualisation
Allows the user to change settings and control the presentation
55
Internet of Things (IoT)
A network formed by 'smart devices' such as mobile phones, wearable devices, headphones, and other devices that have an 'on-off' switch to the internet or to other IoT devices.
56
Interview
A Data acquisition technique that allows in-depth responces; direct questioning of a person.
57
Interviewer Bias
The interviewers preconcieved expectations of the results; the interview questions and answers confirm that bias
58
Jargon
A shorthand way of communicating between members of a particular cohort
59
Layout Diagram
A hand drawn sketch that shows the elements to be included on an input form; the diagram would indicate the placement of fields and labels, the fonts to be used and any graphics or other elements to be included
60
Legal Constraint
Limitations and restrictions imposed on a solution by laws and regulations
61
Likert Scale
A method of encoding qualitative data, usually on a numbered scale
62
Line graph
Visualisation tool that connects points to show continuous changes over time
63
Line of best fit
A straight line that represents the trend in a scatter plot
64
List infographic
An infographic that breaks up large lists of text with bullet points, text and graphics to depict relationships between the data
65
Local Area Network (LAN)
Two or more devices are connected in the same geographical area

Data Analytics (4 decks)

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