IS

Question 1

WHAT IS METADATA

Answer 1

data about data

Question 2

Examples of metadata

Answer 2

• Extensible Markup Language (XML)
• Tag based language to describe metadata
• User can define own tags

Question 3

why metadata

Answer 3

Making data more comprehensible to humans and
computers.
* Easy to share information between companies
and/or people

Question 4

what is system

Answer 4

A system is a set of elements. These elements are
related to each other and, possibly, to elements
from the universe of discourse and are joined for a
specific purpose.”

Question 5

executive support system

Answer 5

long term , strategical systems , profit planning

Question 7

management level systems

Answer 7

management information systems
decision support systems
like sales management

Question 8

transaction processing system

Answer 8

operational level systems

Question 8

characteristics of OLTP , ERP

Answer 8

processes: well structured, unambiguous, routinely
– decisions: short term, occur frequently, little uncertainties
– users: clerks, cashiers, sales assistants, etc.
– required information: easy to determine, independent of
individual, well structured, and from within organization

Question 9

Tactical Information Systems

Answer 9

processes: less routinely
– decisions: mid term, less often, more uncertainties/risks
– users: middle management
– required information: operational level + data warehouse, less
easy to determine, dependent of individual and moment, less
well structured, need for external information increases

Question 10

Decision Support Systems

Answer 10

management level: data analysis for decision making
– input: data – low volume and data warehouses,
analytical models, data analysis tools
– processing: interactive, simulation
– output: special reports, decision analysis, answers to
specific queries
– users: middle and executive managers

Question 11

Strategic Information Systems

Answer 11

processes: unstructured, less unambiguous, occasionally
– decisions: concerning long term, rather incidental and irregular
character, much uncertainty and/or risk
– users: C-level executives (CEO, CFO, CIO, etc.)
– required information: very hard to determine, strongly
dependent of individual, highly less structured and occurs
particularly in the company’s environment

Question 12

COMPONENTS OF Executive Support Systems

Answer 12

– communication and calculations at strategic level
– input: external and internal aggregated data
– processing: graphical, simulation, interactive
– output: projections, answer to queries
– users: top-level managers, board of directors

Question 13

Amazon Prime Air is a technology that

Answer 13

uses drones to deliver packages to customers.

Question 14

What IT technology are airports nowadays using for bag tracing and management

Answer 14

RFID technology.

Question 15

Amazon’s recommender system decides which products to recommend past on your past purchases and browsing history. This is an example of an

Answer 15

DSS system.

Question 16

If a supermarket finds that bugles crisps and goat cheese are often purchased together, then this is an example of

Answer 16

Knowledge.

Question 17

PayPal could be considered as an example of an

Answer 17

OLTP system.

Question 18

A rule that says that birthdate should be expressed as dd/mm/yyyy is an example of

Answer 18

Metadata.

Question 19

Using XML allows us

Answer 19

easy to share information between companies such as product catalogues and purchase orders.