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Summary Flashcards

1
Q

What is the definition of an Information System?

A

IS are combinations of hardware, software, and telecommunications
networks that people build and use to collect, create, and distribute
useful data, typically in organizational settings.

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2
Q

Which 5 components does IS have?

A 
Hardware,
Software,
Data,
People,
Process.
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3
Q

What is an killer application?

A

An application that becomes so essential that large numbers of people buy a device just to run that application.

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4
Q

What is an ERP?

A

was developed to bring together an entire
organisation in one software application and is therefore a software application that
utilizes a central database (all users can edit and save information) that is
implemented throughout the entire organisation. (e.g. SAP, Microsoft)

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5
Q

What is a relational database?

A

is one in which data is organized into one or more tables (e.g.
MySQL and Oracle). SQL is a language that can be used to work with a relational database.

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6
Q

What is a Datawarehouse?

A

is a special form of database that takes data from other databases in
an enterprise and organizes it for analysis.

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7
Q

What is an DBMS?

A

Is a software application that is used to

create and manage databases.

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8
Q

Business intelligence

A

Is the process that organizations use to take data they are collecting and analyze it in the hopes of obtaining a competitive advantage.

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9
Q

What is knowledge management?

A

is the process of formalizing the capture, indexing, and storing of the company’s knowledge to benefit from the experiences and insights that the company
has captured during its existence.

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10
Q

What is an competitive advantage IS?

A

It can bring efficiency to process and enables organizations to explore new possibilites.

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11
Q

What is base two numbering?

A

Binary numbering.

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12
Q

What is a commodity?

A

Part of our everyday live.

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13
Q

What is software?

A

A set of instructions that tell the hardware what to do.

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14
Q

What is an OS?

A

Manages the hardware and create UI and provisedes essential functions.

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15
Q

What is an CRM?

A

Manages customers.

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16
Q

What is SCM?

A

Supply Chain Management. Interconnection betweeen suppliers, manufactures and distributors.

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17
Q

What is Cloud?

A

Applications, services and data stored on the internet via service providers.

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18
Q

What is private cloud?

A

Section of the server space is for specific organisation and organisation has full control over the server.

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19
Q

What is quantitative data?

A

Numeric.

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20
Q

What is qualitative data?

A

Descpritive.

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21
Q

What is a database?

A

Collection of information.

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22
Q

What is a relational database?

A

Normalised database with one or more tables. Each table has fields and filled with records.

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23
Q

What is circuit switching?

A

Dedicated communication. (wastes bandwidth).

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24
Q

What is packet switching?

A

Specialized message switchting.

25
Q

What is extranet?

A

Part of company’s network that can securly made avaible outside company to employe.

26
Q

What is colission detection?

A

Packages collision on network.

27
Q

What is security triad?

A

CIA

Confidentiality,
Integrity,
Availability.

28
Q

What is confidentiality in CIA?

A

Able to restrict access to those who are allowed.

29
Q

What is integrity in CIA?

A

The information is the true and not altered.

30
Q

What is availability in CIA?

A

System needs to be avaible for users.

31
Q

What are information-security policies?

A

Authentication,
Encryption,
Acces control.

32
Q

What is ACL?

A

Acces control list

33
Q

What is RBAC?

A

Role based acces control list.

34
Q

What is a firewall?

A

Stopping outside packages with wrong intent.

35
Q

Which two types of firewall?

A

Hardware,

Software.

36
Q

What is IDS?

A

Intrusion detection systems.

37
Q

What is personal information security?

A

For the user e.g.:
Software up to date
Virus scanner.

38
Q

What is LAP?

A

Language action Perspective

39
Q

Explain LAP?

A

Focusses on what people do when communicating.
Does not start with technology.
Communication is also forming a relationship.

40
Q

What is digital transformation?

A

Use of new digital technologies, such as social media, mobile, analytics or embedded devices, in order to enable major business improvements like enhancing customer experience, streamlining operations or creating new business models.

41
Q

Which four explanations does Erik Brynjolfsson has on IT investments on productivity?

A

Mismeasurement
Lags
Redistribution
Mismanagement

42
Q

Why doesn’t IT Matter according to Nicholas Carr?

A

Beacuse IT is so available, software is easily spread, businesses cannot hope to implement IT and gaining an competetive advantage.

He also states that IT is a commodity and should be managed like one with low cost and risk.

IT should just provide a service.

43
Q

How does Micheal Porter define a competive advantage?

A

When a company sustain profits that exced average for the industry.

44
Q

How does Micheal Prter achieve competive advantage?

A

Cost advantage

Differentiation advantage

45
Q

What is a process?

A

Set of tasks that are completed to achieve a goal.

46
Q

What is a business process?

A

Set of takst that are completed to achieve a business goal.

47
Q

What is BPM?

A

Intentional effort to plan, document implement, and improve business processes with support of IT.

48
Q

What is an system analyst?

A

Overlaps the divide between business needs and programmers to fulfil requirements and needs.

49
Q

What is SDLC?

A

Systems-Development Life Cycle

50
Q

What are the 7 steps in the SDLC?

A 
Preliminary analysis,
System analysis,
System design,
Programming,
Testing,
Implementation,
Maintenance.
51
Q

What is RAD?

A

Rapi Application Development

52
Q

What is Agile?

A

Working on incremental basis with focus on quality and attention to detail. It provides flexibility.

53
Q

What is Lean?

A

Requirements are not known and first step is make a minimum viable product then test it with the users and improve iterative.

54
Q

What is first generation language?

A

Machine code.

55
Q

What is second gernation language?

A

Assembly.

56
Q

What is third-generation language?

A

Java & Basic.

57
Q

What is fourth generation language?

A

SQL, SPSS.

58
Q

What is compiled lanuage?

A

Program is translated into machine-readable code.

59
Q

What is an interpreted language?

A

Uses runtime program to execute code. This interprets code line by line.

IM (4 decks)

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