System Design Powerpoint

GCSE Systems Analysis and
Design Theory…read more

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

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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 testing strategy…read more

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

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