Verification | IGCSE Information and Communication Technology Preparation - Year 11 PDF Download

Why use Verification?

• Verification is a crucial process that ensures data accuracy and correct input.
• It plays a vital role in maintaining data integrity and minimizing input errors.

Characteristics and Uses of Verification

• Visual checking involves manually verifying data by comparing the entered data with the source.
• Double data entry is a process where data is inputted twice and then cross-checked for discrepancies.

Is there a Need for Validation as well as Verification?

• Verification vs. Validation:
  • Verification ensures accurate data input, while validation checks data for sensibility and adherence to set criteria.
  • Both processes are vital for maintaining data precision and quality.
• Reasons for Verifying Data Entry:
  • Verification is crucial to ensure that data is accurately transcribed during entry.
  • For example, in a railway system implementing e-tickets, verifying passenger information helps prevent errors in the database.
• Distinguishing Verification and Proofreading:
  • Proofreading involves checking data content for errors, while verification entails comparing data with the original source.
  • While proofreading focuses on grammar and spelling, verification confirms data accuracy.