16724341
Description
Mind Map by Mathew Wheatley, updated more than 1 year ago
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Created by Mathew Wheatley
almost 6 years ago
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Unit 2.3 Robust Programs
- Key Words and
Phrases on Robustness
- Authentication - A coding method that
checks that the user really is who they say
they are. It can also be physical, for example
through the use of a banking secure key
- Maintainability - Code must be maintainable. We
can use comments and indentation to provide
information to future users and programmers
that may be required to maintain the code.
- Comments - Help explain the code and
its function Using the hash symbol.
- Indentation - Used to help
group together a function
- Anticipating Misuse -
We predict how
someone could abuse
the program and the
plan for these issues
- Data Sanitisation -
Cleaning up
inputted data so it is
ready for apps or
the program to use.
- Data Validation - Makes sure
that data entered is reasonable.
Comes in many forms.
- Check Digit - The last one or two
digits in a code are used to check
the other digits are correct
- Format Check -
Checks inputs are
in the right format
- Length Check - Checks
it isn't too long/short
- Lookup Table -
Looks up acceptable
values in a table
- Presence Check -
Checks if data has been
entered into a field
- Range Check -
Checks that the
value falls in the
specified range
- Spell Check -
Looks up spellings
in the dictionary
- Check Digit - The last one or two
digits in a code are used to check
the other digits are correct
- Data Verification - Makes sure that
data entered is accurate through
either dual entry or double checking.
- Authentication - A coding method that
checks that the user really is who they say
they are. It can also be physical, for example
through the use of a banking secure key
- Different types of Test Data
- Normal - Data
in the range
- Extreme - Data lying on the
edge of the range (Min/Max)
- Erroneous -
Data outside of
the range
- Null Value -
Nothing is entered
- Invalid -
Wrong type of
data inputted
- Normal - Data
in the range
- Key Terms on Testing
- Iterative Testing -
Testing as you go along.
Done line by line or
section by section
- Final Testing -
Carried out at
the ending,
when it's fully
written
- Syntax Errors -
Mistakes in
the way the
code is written
- Logic Errors -
A bug in the
program that
makes it run
incorrectly
- Bugs - These cause
programs to run
incorrectly and are
often caused by
erroneous code
- SYSTEMS LIFECYCLE - THIS CYCLE LOOPS
- Background Investigation
- Analysis
- Design - Test Plan
is created here
- Implementation -
Iterative Testing
takes place
- Testing - Final
Testing occurs
- Evaluation - We
feedback on our testing
here
- Evaluation - We
feedback on our testing
here
- Testing - Final
Testing occurs
- Implementation -
Iterative Testing
takes place
- Design - Test Plan
is created here
- Analysis
- Background Investigation
- Iterative Testing -
Testing as you go along.
Done line by line or
section by section
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