Other IT Considerations Flashcards
Preventative Controls
deter problems before they occur; more important than detective controls
Detective Controls
deter problems after they occur
what benefit does EDI have on the environment?
allows business cycle to be reduced or compressed; ex due to receiving cash immediately and processing it fast the AR balance would be low
Message Authentication
provides assurance of integrity of data
Encryption
decode messages so that only authorized users can read it;
Trojan Horse
Involves the inclusion of unauthorized programming in an otherwise legitimate program. They are frequently included in “free” software downloadable from Internet sites. For example, free software made available to AOL subscribers included special instructions that secretly forwarded the subscriber’s account name and password to another party.
Audit Trail
an accounting transaction that can be traced through an accounting information system. In an EDI system, the audit trail would include activity logs that indicate failed transactions, as they identify the disposition of those transactions.
compiler
Converts source program (a particular language; eg. SQL) into readable form (object program) source–>object
distributed systems
network of remote computers that are linked to the main system each system has input output and processing
what are the two data base systems
relational and hierarchical
hiearchical system
data elements at one level encompass the data elements below
relational
integrated database having the structure of a spreadsheet; each row has fields related to a given customer and each column relates to an item)
local area network (LAN)
interconnected throughout a building/campus
wide area network (WAN)
interconnected system throughout community or country
value added network (VAN)
an independent network that facilitates EDI by connecting a buyer and seller
