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Visualization of Mappings Between Schemas

This study presents a scalable interface for visualizing mappings between hierarchical data schemas, introducing features like Highlight Propagation, Auto-Scrolling, Coalescing Trees, and Multi-Select. User trials showed significant speed improvements and user preference for the full feature set. Future work includes extending features to editing scenarios and generalizing the concepts to other problems. The study questions the significance of incremental improvements and explores the potential benefits of separating features for usability testing.

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Visualization of Mappings Between Schemas

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  1. Visualization of Mappings Between Schemas George G. Robertson Mary P. Czerwinski John E. Churchill

  2. George Robertson

  3. Overview • Scalable interface for examining connections between two sets of hierarchical data

  4. The Problem

  5. The Solution(s) • Highlight Propagation • Auto-Scrolling • Coalescing Trees • Multi-Select • Incremental Search

  6. Highlight Propagation

  7. Auto-Scrolling • Auto-scroll map • Center mappings on selected element • Auto-scroll columns within map • Map consists of columns of functoids • “functoids” is not a word in Word™ • Auto-scroll other schema tree view • Animated transition

  8. Auto-Scrolling

  9. Coalescing Trees

  10. Multi-Select

  11. Incremental Search

  12. User Study • 8 very experienced BizTalk users • 4 Versions • A: Baseline • B: Add highlight propagation • C: Add auto-scroll • D: Add coalescing and search ticks • (i.e., everything) • 6 isomorphic tasks / person / version • Order controlled by partial Latin Square

  13. Results

  14. Results

  15. Results • Time Trials • All significantly faster than baseline • Full feature set (D) faster than just highlighting (B) • Satisfaction Survey • All preferred over baseline • No significant difference between B, C, D • However, unanimously preferred D when asked directly (people like features!)

  16. Future Work • Extend features to editing scenario • Include features in TreeView control • Animated scrolling • Coalescing • Incremental search with scrollbar ticks

  17. Discussion • Does reordering versions even matter when they’re incremental improvements? • Might get more useful data by separating features • Generalize these ideas to other problems?

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