test data

• Computing

Verification

Validation

Double entry

Range Check

Visual check

Length check

Check digit

Data type check

Lesson Objectives

Explain test data

Using given data explain each  using given criteria

Explain check digit by using given criteria

Who can explain what the previous slide algorithm wants you to investigate

00:00

Identify normal test data in this sequence: E, f, g, h, i ,j, m

00:10

Identify extreme test data in this sequence: E, f, g, h, i ,j, m

00:19

What is abnormal data using the following date:
-3, -2 , -1, 0, 1, 2, 3

Test data

Plenary-Check digit -13

9 7 8 1 9 0 6 1 2 4 0 0

In the numbers above identify all the odd numbers

In the numbers above identify all the even numbers

What is the check digit?

9 7 8 0 3 4 0 9 8 3 8 2

Plenary-Check digit -13
identify the odd numbers by color coding them - 9 7 8 0 3 4 0 9 8 3 8 ?

Work out the check digit for the following number: 9 7 8 0 3 4 0 9 8 3 8 2 ? = check digit

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