Chapter 4 Flashcards
What is data?
Raw facts and stats, no conclusion from the data, not processed
What is information?
Processed data
What are the qualities of performance reports?
Accurate, complete, cost, understandable, relevant, adaptable, timely, easy to use
What are information systems?
A term for the systems, people and processes which have been designed to create, store, alter and share information
What is information technology?
An element of info systems, a term for the technology that exists in the system
What does info technology encompass?
The creation, support and management of computer-based info systems
What are the three levels of information systems?
Strategic, tactical, operational
What are the 5 things info can be classified into?
Time horizon, level of detail, source, degree of certainty, frequency
What is strategic information?
Used by higher level of management to define goals and priorities, initiate new programmes and develop polices
What is tactical information?
Used to aid the allocation of resources and establishment of control, middle level management use to help implement the top level plans
What is operations information?
Day to day running of the business and to decisions that are repetitive in nature
How is the time horizon in a strategic, tactical and operational info system?
Long term - immediate
What is the level of detail like in a strategic, tactical and operation info system?
Aggregated/summarised- highly detailed
What is the source level for strategic, tactical and operation system?
Mainly external - interanl
What is the degree of certainty like in a strategic, tactical and operational system?
Uncertain- certain
What is the frequency levels of strategic, tactical and operational information system?
Infrequent -> frequent
What is a decision support system?
Provide access to summary performance data. DSS does not make the decisions. Gathers info and provides possible outcomes.
Who would use a DSS system?
Tactical managers
What is an expert system?
Acts like an expert. Designed to solve problems. Can modify own database in accordance to own results. Can’t deal with unexpected. Aid with human decision
What is an executive information system?
Strategic information systems. Easy access to internal and external info. User friendly way. Highly summarised
What is MIS?
Enables users to drill-down to obtain more specific detail about the summarised figures
What is DSS?
Expressly designed for the support of individual and collective decision making