Hello guys,
Welcome to week 4 on the topic Information system, before we
started the new topic, we recapped what we have learnt on ICT and IT.We discussed
what is System and information system. System is a set of elements or
components.it has Input, Processor, Output as the organization while IS made of
Customer, Supplier and Stockholder. Information system on the other hand is the
combination of hardware. Software, infrastructure, trained personnel and
information technology used to facilitate planning, control, coordination and
making decision in an organization. It has people, information and business as
it organization.
INFORMATION SYSTEM: It is application of computer based
information technology which is the combination of
Hardware, software, infrastructure, and trained personnel.
We also learnt about types of information system which is TPS, DSS, ESS, MIS,
and OAS.
Transaction processing system, Decision support system,
management information system and office automation system. They are all
information system used in most of organization in the world. The information
system can be divided into two parts that are supporting business operation and
support management DM.
The flow of information between management levels. The top
manger make use of ESS (Expert support system) in their department to initiate
things in organization in the form strategic, The middle manager make use of
DSS and MIS(Decision support system and Management information system) in their
department. The middle manager gets the information from TPS in order for them to
make any decision. Low level also make use of TPS (Transaction processing
system) is the first place where information is been generate for the effective
run of the business.
We also learnt about TPS features, component, and it
processing stage) as we all know TPS is connected to all levels of the company.
MIS function, features, and it processing stage. The last DSS with it function,
features. It helps me to have knowledge of all the information system that I
mentioned above.
The last session of the day was ESS (Executive support
system).It was designed to support high level of DM in an organization and it
characteristics. ES(Expert system) is part of general categories of computer
that fall under artificial intelligence which allow the computer to
think,capture,store,and also allow it to make suggestion.
During that week we did group work which falls under
information system. In the tutorial class we learnt how to references using the
Microsoft word. This is some of what we did.
Interpersonal Communication. (2012, February 26). Retrieved
March 14, 2013, from Wikipedia:
http://en.wikipedia.org/wiki/Interpersonal_communication
Anderson, W. A. (1999). Sociology 2000. Boston: Boston.
Cole, A. (2012, April 11). The Changing Face of Information
Technology. Retrieved March 14, 2013, from it business edge:
http://www.itbusinessedge.com/cm/community/features/articles/blog/the-changing-face-of-information-technology/?cs=50198
Gower, C. (1999). Direction in conservation biology. Journal
of animal ecology, 215-244.
Ismail, R. (2005, October). Desktop Publishing in
Information Marketing. PC Magazines, pp. 21-23.
Jackson, M. (2011, June 21). Fattening Queer History: Where
Does Fat History goes from here. (M. Jacob, Interviewer)
Man, E. V. (2000). Computer Viruses. New Jersey: Prentice
Hall.
Sakiam, S. (2009, April 1-15). Living up to its names.
Times, pp. 21-23.
INFORMATION SYSTEM DEVELOPMENT: It is the process of
defining, designing, testing, and implementing a new software application or
program. Apart from the ISD, we have ISDM which is the collection of procedure,
techniques, tools and documentation aids which will help the system developers
in their efforts to implement a new information system.
A Methodology is used to make the analysis and design
process more accessible to non- expertsIt also introduce structure into design
and make it more manageable.
There reason we initiate system Development is
When their existing problem with the system
Desire to introduce new system
Change in marketing or external environment
Merger or acquisition
We have participant in in the system development and system analyses,
which consist of users, IT specialist, programmer, Manager, Stakeholders, external
companies.
Types of
information system development Methodology
Gane sarsons (Stradis), prototyping/Iterative approach, structure
approach (SDLC), information engineering(IE),soft system methodology, and
ethics.
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