Difficulty: Easy
Correct Answer: you type the key in an entry line, and the correct form is displayed
Explanation:
Introduction / Context:
Forms are a common user interface for CRUD tasks (create, read, update, delete). Efficient lookup minimizes user effort and reduces errors by retrieving a specific record based on a key or search criterion rather than browsing sequentially through many records.
Given Data / Assumptions:
Concept / Approach:
The most efficient pattern is to enter a key (or search value) into a designated field and have the form display the matching record immediately. Sequential browsing is inefficient and error-prone. Modern form frameworks offer search boxes, combo boxes with autocomplete, or dedicated lookup dialogs to reduce friction.
Step-by-Step Solution:
Verification / Alternative check:
Usability guidelines recommend direct lookup by key or unique attribute; database indexing ensures fast retrieval compared to manual paging through forms.
Why Other Options Are Wrong:
Common Pitfalls:
Relying on manual browsing when indexes and search fields exist; not validating keys before executing the lookup.
Final Answer:
you type the key in an entry line, and the correct form is displayed
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