Information systems

A blockchain is a distributed ledger with growing lists of records (blocks) that are securely linked together via cryptographic hashes. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data (generally represented as a Merkle tree, where data nodes are represented by leaves). Since each block contains information about the previous block, they effectively form a chain (viz. linked list data structure), with each additional block linking to the ones before it. Consequently, blockchain transactions are resistant to alteration because, once recorded, the

combination of information, resources, activities and people that support tasks in an organization; group of components that interact to produce information

software type

computer system that emulates the decision-making ability of a human expert

process of creating, sharing, using and managing the knowledge and information of an organization

person who maintains and operates a computer system and/or network

organisational activity concerning information lifecycle

information filtering system to predict users' preferences

human communication that occurs through the use of two or more electronic devices; communicative transaction that occurs through the use of two or more networked computers

information system used for decision-making

Self-service is a system whereby customers acquire (or serve) themselves goods or services, paying for the items at a point-of-sale, as opposed to a shop assistant or clerk acquiring goods or providing services in addition to taking payment. Common examples include ATMs, coin-operated laundrettes, self-service checkouts, self-service petrol stations, and buffet restaurants.

system that supports business or organizational decision-making processes

information technology executive

graphical representation of the "flow" of data through an information system

software for, eg., recruitment, benefits administration, attendance records, payroll

system used in manufacturing facilities to capture data and control equipment

research discipline and practice of identifying business needs and determining solutions to business problems

science that deals with development and application of information and communication systems in business enterprises

Data Information Knowledge Wisdom Hierarchy

element of health informatics that focuses mainly on the administrational needs of hospitals

management support systems adapted for senior executive information and decision-making needs

type of computing system

IT-based network

financial agency that gathers account information to predict a consumer's creditworthiness

software-based information management tool for laboratories

type of software or components thereof

systems approach to the analysis and design of information systems

Japanese system to alert of impending earthquakes

system designed to support administration of radiology services and facilities

automation software systems

system of collecting, storing and processing financial and accounting data

socio-technical system

IT systems in an organization deployed by departments other than the central IT one

business compliance technology

computer program that reasons and uses a knowledge base to solve complex problems

process of collecting information that a person uses to gather, classify, store, search, retrieve and share knowledge in their daily activities

community rating algorithm

system that removes redundant or unwanted information at a semantic level

process of collection of business requirements to develop a new information system

software for educational institutions to manage student and school data

diagnosis assisted by a machine

approach to processing events in software engineering, aiming to identify meaningful events such as opportunities or threats in real-time situations and respond as quickly as possible

Type of management

computer interface design concept

database for checking the validity of a VAT number issued by an EU Member State

SIS

traffic information technology used in Japan

Tools for automated processing of information

organization

building data systems to collect and make data usable

online marine biology database

insular management system in which one information system or subsystem is incapable of reciprocal operation with others that are, or should be, related

thumb|upright=.56|FAO logo DAD-IS is the acronym for the Domestic Animal Diversity Information System, a tool developed and maintained by the Food and Agriculture Organization of the United Nations as a part of its programme for management of animal genetic resources for food and agriculture. It includes a searchable database of information on animal breeds.

CSPro, short for the Census and Survey Processing System, is a public domain and Open source data collection and processing software package developed by the U.S. Census Bureau and ICF International. Serpro S.A. was involved in past development. Funding for development comes primarily from the U.S. Agency for International Development. The main purpose of this software suite is to design applications for data collection, processing and tabulation.

concept in information systems

input-process-output approach

combination of software and hardware that provides a means of delivering a message to a set of recipients

The R1 (internally called XCON, for eXpert CONfigurer) program was a production-rule-based system written in OPS5 by John P. McDermott of Carnegie Mellon University in 1978 to assist in the ordering of DEC's VAX computer systems by automatically selecting the computer system components based on the customer's requirements.