# AA 4306 Lecture Notes - Lecture 8: Cognitive Load, Data Redundancy, Application Programming Interface

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5 Jul 2018
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!"#\$%&##'<%<=>,\$;#'6'the term used to refer to the application of various
technologies to enable analytical processing, data mining, performance
management and reporting.
?&#;7\$+,\$@&'<%<=>,\$;#'6'the use of data to understand past and current
business performance and so make informed decisions.
A7&B\$;,\$@&'<%<=>,\$;#'6'analysis of past performance in an e;ort to predict the
future by examining historical data, detecting patterns or relationships in these
data
(ie. creating a model), and then extrapolating these relationships forward in time.
“What if” analysis.
A7&#;7\$+,\$@&'<%<=>,\$;#'6'using a model where the output of the model can be
optimised by adjusting the input alternatives, so ‘prescribing’ what the best
decision is.
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EThe measurement, collection, analysis and reporting of data about
learners and their contexts, for purposes of understanding and optimising
learning and the environment in which it occurs.
:)+\$;'F'6'IPO Charts
/%+",'6'what information do we need in order to get our desired output?
A7);&##\$%-'6'how, or what are going to do to, the input to get our desired
output? How are we going to ‘process’ the data?
G",+",'6'end result. The output is actually the starting point of the IPO chart
because unless we know what we want, we cannot determine what our inputs
will be.
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EWhat kind of problem exists?
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EFact collection to obtain better information
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EThe process of selecting the best optimal solution
0,&+'H'6'0)=",\$)%#'B&#\$-%'
EDevelop the proposed solution taking physical, logical, and people factors
into account.
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EPut the proposed solution into practice, evaluate the performance and
modify if needed.
N\$;J'+\$;,"7&#'6'think of Hammer Wines mind map, it has all the stakeholders,
departments, and the lines to each of these shoe the relationships between
these parties, those with an X are in con0ict with each other.
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:GA'I7<*&P)7M'6'a framework design by Jane and Kenneth Laudon (1998) that
assists reviewing the problem symptoms in context.
EThe symptoms are viewed in relation to each of the interrelating
components of the context.
E :&;J%)=)->'6'(eg, hardware, software, database)
E G7-<%\$#<,\$)%'6'(eg. culture, management, politics, bureaucracy,
environment)
E A&)+=&'6'(eg. evaluation, ergonomics, attitude, legal compliance)
Eall these are used in attempt to identify the underlying problem cause.
(<"#&'6'the source of the problem.
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0>*+,)*'6'complaints which are the condition produced by the cause.
0>#,&*#'(=<##\$O;<,\$)%
Q<,"7<='#>#,&*'6'occurs naturally in the world. (eg. repository system, human
body, ecological system, solar system)
?&#\$-%&B'<K#,7<;,'#>#,&*'6'constructed by humans, but not physically
implemented (eg. the logic of a management information system, a spoken or
computer language, mathematics) :J\$%M')R'\$,'<#'<'K&=\$&R'#>#,&*S'
T%-\$%&&7&BUB&#\$-%&B',&;J%\$;<='#>#,&*'6'a man made system that is
physically implemented (eg. toaster, car, iPhone).
V"*<%'<;,\$@\$,>'#>#,&*'6'systems where people come together for some
purpose (eg. sporting clubs, o7ce departments, university).
:)+\$;'4'6'()**"%\$;<,\$%-'!"#\$%&##'A7)K=&*#'<%B'!"#\$%&##'0)=",\$)%#
W7\$,,&%';)**"%\$;<,\$)%#'6'letters, emails, memos, manuals and reports.
DB@<%,<-&#X'
Ehelps in laying down organisational policies and rules.
EAssists in the proper delegation of responsibilities.
EWritten communications are more precise and explicit.
EE;ective written communication develops and enhances an organisation’s
image.
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EDoes not save costs (eg. stationery costs, paper etc.)
EWritten communication is time consuming as the feedback is not
immediate.
EE;ective written communication requires great skills and competencies in
language and vocabulary use. Poor writing skills and quality have a
negative impact on an organisation’s reputation.
:J7&&'M&>'+7\$%;\$+=&#')R'&Y&;,\$@&'K"#\$%&##'P7\$,\$%-'\$%;="B&X'
EPurposeful
EAudience centred
EConcise
:)+\$;'5'6'Social networks and mobile technologies
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