IT assignment

Here are brief answers for your Information Technology assignment on Data Validation and Verification:

Define the term ‘Data’:

Data is raw facts and figures without context.

What is ‘Data Capture’:

It is the process of collecting data from various sources.

List at least 4–5 sources of data & information:

Surveys

Sensors

Forms

Internet

Transactions

Define ‘Data Validation’:

It is the process of checking if data is accurate and reasonable before input.

Explain the purpose of data validation:

To ensure the data entered is sensible, correct, and useful.

Define ‘Data Verification’:

It is checking that data has been accurately entered or copied.

Explain the methods of verification (e.g., double entry):

Double entry: Entering the data twice and comparing both entries.

Proofreading: Manually checking the data for errors.

Define ‘Proofreading’:

It is the process of manually checking data for mistakes.

List 5 errors made during data entry:

Typing errors

Omissions

Extra characters

Transposition errors

Misinterpretation of handwriting

Define each method of validation:

Range check: Ensures data falls within a specific range.

Format check: Ensures data matches a specific format (e.g., DD/MM/YYYY).

Reasonableness check: Ensures data is sensible (e.g., age not over 150).

Data type check: Ensures data is of the correct type (e.g., number, text).

Consistency check: Ensures data does not conflict with related data.

Presence check: Ensures required fields are not empty.

Length check: Ensures the data has a suitable number of characters.

Let me know if you need these written in full sentences for your notebook!