Be able to identify and correct data entry errors including transposed numbers, incorrect spelling, inconsistent character spacing, inconsistent case

Published by Patrick Mutisya · 14 days ago

Cambridge IGCSE ICT 0417 – Topic 15 Proofing

Topic 15: Proofing

Objective

Be able to identify and correct data entry errors including transposed numbers, incorrect spelling, inconsistent character spacing, and inconsistent case.

Common Data Entry Errors

  • Transposed Numbers – e.g., 12 345 entered as 21 345.
  • Incorrect Spelling – e.g., “recieve” instead of “receive”.
  • Inconsistent Character Spacing – e.g., “New York” with an extra space.
  • Inconsistent Case – e.g., “john DOE” instead of “John Doe”.

Strategies for Proofing

  1. Read the data aloud to catch oddities.
  2. Use a two‑pass approach: first check for obvious errors, then verify consistency.
  3. Apply formatting rules (e.g., title case for names, consistent decimal places).
  4. Cross‑check with source documents or reference lists.
  5. Use spell‑check tools but review manually for context‑specific terms.

Examples and Practice

Error TypeIncorrect EntryCorrected Entry
Transposed NumbersInvoice Total: 3 452.00Invoice Total: 4 352.00
Incorrect SpellingCustomer: Acme Corp. (spelled “Acme Corg”)Customer: Acme Corp.
Inconsistent SpacingAddress: 123 Main St.Address: 123 Main St.
Inconsistent CaseProduct Code: abc123Product Code: ABC123

Self‑Assessment

  1. Identify the error in the following entry: “Employee Name: sARAH jONES”.
  2. Correct the transposed number in: “Total Sales: 9 876.54”.
  3. Rewrite the following with consistent spacing: “Project Deadline: 31‑Dec‑2024”.
  4. Apply title case to: “john smith jr.”.

Suggested diagram: Proofing workflow – Input → Initial Review → Consistency Check → Final \cdot erification → Record.