Unit 8 3 Validation and verification

Unit 8 3 Validation and verification

By Michael Harrington

Fill in the Blanks

Show you know the objectives

Understand the need for validation and ? checks to be made on input data

Fill in the Blanks

Show you know the objectives

Be able to give examples of range checks, length checks, type checks and check ?

Fill in the Blanks

Show you know the objectives

Devise algorithms to ? data entered by a user

Open Ended

What is the definition of validation?

Multiple Choice

Which type of check is this?

The maximum daily temperature in a certain month is between 10°C and 30°C

• Length check

• Check digit

• Type check

• Range checks

• Presence check

Multiple Choice

Which type of check is this?

An airport code can only be three characters

• Length check

• Check digit

• Type check

• Range checks

• Presence check

Multiple Choice

Which type of check is this?

An airport code can only be three characters

• Length check

• Check digit

• Type check

• Range checks

• Presence check

Multiple Choice

Which type of check is this?

A car number plate contains only letters, digits or spaces

• Length check

• Check digit

• Type check

• Range checks

• Presence check

Multiple Choice

The Addition row has 43 at the right hand side. How was this 43 calculated?

(get this correct!)

• Add all the ISBN numbers

• Add all the weight row numbers

• Add all the multiplication result row values

• Add 40 plus 3

Multiple Choice

The Remainder row has 3 at the right hand side. How was this 3 calculated?

(get this correct!)

• divide 40 by 10

• divide the total of the row above by 10

• Add 43 + 3 + 7 and divide this total by 3

• Subtract the total 40 from the divide remainder 43

Multiple Choice

The check digit value is calculated on the final Subtraction row. How was this 7 calculated?

(get this correct!)

• subtract the remainder row value from 10

• subtract the 10 from 7

• subtract the remainder row value 43 from 50

• Subtract the result from a value that gives 7

Fill in the Blanks

If a product code displayed on an item is 4244723. What is the value of the check digit?

​1 Bug

to find

Open Ended

What is the bug here and what will you change to correct this?

(this is a logic error and nothing to do with indentation or spelling or pseudocode used)

Open Ended

Verification is often used when setting a new password. Can you give another example where Verification is used when entering information?

​Worksheet 3 - on your unit 8 one Drive

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Ensure the correct link to this is on your class notebook Lesson 3 page

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Then complete all the task​s

​- See correct version here