4.2 Infomation Systems Flashcards
to be effective what anagram must info processing follow?
CATIVA Completeness Accuracy Timeliness Inalerability Verifiability - Audit trails ( Assessability
What is a ‘business system’?
a collection of people, machines and methods organised to accomplish a set of specific functions
What is iS?
infomation systems - all systems and procedures involved in the collection storage production nd distribution of infomation
What is IT?
Information technology - the equiupment used to capture, store, transmit or present information.
what is TPS?
transaction processing system - performs, records, nd processes routine transactions. e.g. checkout at supermarket
What is Cloud Computing
a model for enabaling convienient, on demand network access to a shared pool of configurable coputure resources (network/servers) that can be rapidly provisioned and released with minimal management effort or service provider interaction (cheaper)
What is clouid accouting adn how woudl be implemented? what are the risks?
accoutancy software provided in the cloud via a serve provider
Increases cyber risk adn the user is reliant on security and back ups being provided by the service provider.
What is MIS
Managment Info system
converts data from internal sources into information to allow managers to make time and effective decisions for planning, and directing of activities for which they are responsible.
what do the MIS reports provide
?
support stuctured decsisions at operation and managment level
report on existing operations
little analytical capability
inflexible
internal focus.
What are the types of infomation systems?
TPS and MIS
Ess?
executive supprt system - database that pools data from IN and EX sources and make info aviolable to senior managers in easy to understand form. Help Managers make strategic andunstrauctured decisions
What are unstructured decisions?
making a decsiions based on correlations and links without any idea of what we wanted to find
What are structured decisions
Making decsions on links and corrlations we wanted to find.
DSS?
Decision support system - combines data and analytical models or data analysing tools to support unstruc/strauctured decisions making
Expert System?
human expertise in a limited domain of knowledge to all user to benefit from expert knowledge adn information. follows rules to interperate a set o circumstances. e.g. doctors surgies
KWS?
knowledge work system - faciliatete the creation and integration of new knowledge into an organisation.
OAS
Office automation system -systems that increase the productivity ofdata and information workers, is - work flow system to get info from one team to another = less human interaction
AI?
Artificial Intelligence - the sue of computures to do tasks which are thought to require humn intelligence.
WHta is Block chain?
Distributed ledger technology - allows poeple who do not now each other to trust a shared records and events
what are Digital assets?
any text or media file that can be formatted into binary source and that includes the right to use it; digital files that do not carry this right re not considered to be digital assests.
Benefits of block chain?
multiple organisations can manage data centrally
allows business of a shared interest in maintaining an accurate record of data to share the costs of developing the data system s well as beingable to access this remotely.
What are the qualites of a seciure info System?
ACIANA Availability Confidentiality Integrity Authority Non-repudiation Authorisation
What are the various aspects of infomation security? (6)
Prevention Detection Deterence Recovery rocedures Coorection procedures Threat avoidance
how does data maintain its integrity?
if it is complete and not corrupted