DSST Introduction to Business cheat sheet
DSST Introduction to Business · Keep the key ideas within reach.
Management and Information Systems
System components: input, processing, output, feedback, and control.
Transaction processing systems handle routine daily transactions; management information systems summarize them into reports.
Decision support systems support semi-structured choices with models; executive information systems serve senior strategic needs.
Data hierarchy: character, field, record, file, database; a database management system controls storage and access.
Local area networks cover a building; wide area networks span sites; the internet is a public network of networks.
Firewalls, encryption, authentication, and access controls protect confidentiality, integrity, and availability.
Electronic data interchange and supply chain systems exchange orders and inventory data between firms.
System development life cycle: planning, analysis, design, implementation, maintenance.