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Systems Analysis ­ the Waterfall Model
Analysis
Design
Development and
Testing
Implementation
Documentation
Evaluation
and Review…read more

Slide 3

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How
this could w
Analysis data
?
e co
llect
1. Collect Data from current system
2. Description of the current system ­
InputsProcessesOutputs
3. Identify the problems with current system
4. Agree objectives with customer
5. Identify customer requirements
6. Produce cost-benefit analysis
7. Produce your data flow diagram for the
customer
27 = Feasibility Study…read more

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Design Dat
a ve
rific
atio
s nm
ptur e form Pro eth
a ca duc ods
es i gn dat e sy
D and stem
pse f
u tput udo low ch
s , o cod arts
n la y out Des e
s i g n scree d reports ign
De an sys
forms tem
rule valida
s tion
s /tab les
uc t u r e Des
iles str ig
f
A g r e e req n hard
uire w
me are
o f t w are nts
ns
Desig rements Pro
i
requ duc
e al
gor
ithm
s
Design testing strategy…read more

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What is Verification?
Prevents errors when copying data from one platform to another
What is Validation?
Checks the data to ensure that it satisfies the required
criteria......think of when you import your data into Access from
a .csv file…read more

Slide 6

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Development and Testing
This section is where you actually produce the system
itself ­ e.g. write the code ­ and test it to ensure that
it does what its supposed to do as per the
specification produced from the Analysis and Design
sections.
This stage also deals with how the interfaces will
interact with the final system. For example, how the
system will query the database that lies below the
user interface…read more

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