Informationsystemsincontext
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Transcript of Informationsystemsincontext
Information Systems In Context
Environment
InformationSystem
Information Processes
ParticipantsData /
InformationInformationTechnology
Main Components of an information system
Purpose• Who it is for?• Need(s) they have
boundary
Users
Environment
Environment
InformationSystem
ENVIRONMENTDefinition: The environment is everything that influences, and is influenced by, the information system and its purpose.
Description: The information system has an impact on the environment, and in turn, the environment has an impact on the information system.
Environment
InformationSystem
BoundaryDefinition: The boundary defines what is the information system and what is the environment.
Description: The information system may have to use features that belong to the environment, which the information system can not change.
Environment
InformationSystem
Main Components of an information system
PURPOSEDefinition: The purpose is the reason(s) for the creation and existence of the information system.
Description: There are a lot of reasons for the development of information systems (e.g. a need for a list of all the food requirements for animals in a zoo).
Purpose• Who it is for?• Need(s) they have
Environment
InformationSystem
Information Processes
ParticipantsData /
InformationInformationTechnology
Purpose• Who it is for?• Need(s) they have
Main Components of an information system
INFORMATION SYSTEMDefinition: A group of elements that work together. It is created to achieve the purpose. It operates in a particular environment.
Description: An information system performs a set of processes that require: participants, data or information and information technology.
Note: There are also other systems such as the natural systems (water cycle).
Users
Environment
InformationSystem
Information Processes
ParticipantsData /
InformationInformationTechnology
Purpose• Who it is for?• Need(s) they have
Main Components of an information system
INFORMATION PROCESSESDefinition: These are the processes of collecting, organising, analysing, storing and retrieving, processing, transmitting and receiving and displaying.
Description: Information processes involve both computer and non-computer activities carried out to develop and maintain an information system.
Note: Can also be non-computer processes.
Users
Environment
InformationSystem
Information Processes
ParticipantsData /
InformationInformationTechnology
Purpose• Who it is for?• Need(s) they have
Main Components of an information system
RESOURCES
PARTICIPANTSDefinition: These are the people who carry out the processes within the information system.
Description: Participants are the users of the information system who play a direct or indirect role in the development and use of the system.Resources
Users
Environment
InformationSystem
Information Processes
ParticipantsData /
InformationInformationTechnology
Purpose• Who it is for?• Need(s) they have
Main Components of an information system
RESOURCES
DATA / INFORMATIONDefinition: Data is the raw material that information processes deal with, information is the output from that data once it has been processed and given meaning by people.
Description: Data can take many forms such as graphics, audio, video, text or numbers and its use will be determined by the purpose of the information system.
Resources
Users
Environment
InformationSystem
Information Processes
ParticipantsData /
InformationInformationTechnology
Purpose• Who it is for?• Need(s) they have
Main Components of an information system
RESOURCES
INFORMATION TECHNOLOGYDefinition: This is the hardware and software used in information processes.
Description: Hardware will not operate without software.
Resources
Users
Environment
InformationSystem
Information Processes
ParticipantsData /
InformationInformationTechnology
Purpose• Who it is for?• Need(s) they have
Main Components of an information system
UsersDefinition: Users are people who view the output from an information system.
Description: A user may utilise the services of a bank from an ATM
Resources
Users
Environment
InformationSystem
Information Processes
ParticipantsData /
InformationInformationTechnology
Purpose• Who it is for?• Need(s) they have
Main Components of an information system
Note: Arrows indicate the interacting relationship of the components. Changes of one affects the other associated components.
Resources
Users
Environment
InformationSystem
Information Processes
ParticipantsData /
InformationInformationTechnology
Main Components of an information system
Purpose• Who it is for?• Need(s) they have
Resources
Users
