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This complete revision guide covers every specification point in Edexcel IAL Information Technology Unit 4 (WIT14/01) — all three topics from Database Applications and Relational Concepts to Database Solutions. Aligned with the Pearson Edexcel IAL IT specification (Issue 2, Feb 2021) and verified against Pearson’s published grade boundaries (2020–2025).
What’s what’s inside?
Full spec coverage – Every point of Topics 17–19 (17.1–19.4) with complete revision notes, including database applications, user needs, user experience, data types, relational structures, referential integrity, validation and data-entry techniques, queries, calculated fields, forms, reports, macros, testing, and evaluation.
Priority heatmap – Every sub-topic colour-coded by a disclosed Structural Priority Index, built from AO weightings and practical assessment focus.
Top 12 error register – Common mistakes drawn from mark-scheme conventions, including wrong data types, storing calculated values in tables, missing referential integrity, and incomplete test plans.
Database & Query Toolkit – SQL reference, data type decision guide, fully worked calculated fields, subqueries, cascading updates/deletes, and a full worked practical walkthrough from scenario to tested solution.
UI & Testing Toolkit – Form design checklists, two worked macro examples, report and dashboard design, and the structured test plan template.
Model answers by question type – Short theoretical, practical-with-justification, testing, and extended scenario responses, including two synoptic-style extended questions spanning the whole unit.
Grade-boundary intelligence – Verified Pearson boundaries across five series (2020–2025), showing the most dramatic recovery of any unit in the series.
Teacher tools – Diagnostic activities, misconceptions register, three-tier differentiation, revision plans, and a final practical skills audit.
How I use this resource:
For teachers – Unit 4 has 52% AO4 (design solutions) and effectively no AO1 (recall). Revision must be almost entirely hands-on — building real databases against realistic scenarios, including the candidate evidence template workflow.
Ideal for independent study, flipped learning, intervention, and final-week cramming.
Independently produced by Samata Reviews. Not affiliated with or endorsed by Pearson Education Limited.
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