한국어 
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Background
"New sales system manual training, delivered on mobile in one shot."
Major Commercial Bank B
18,000 employees across 1,000+ branches needed training on a new sales system, but internal internet access was restricted.
Infrastructure capable of handling massive concurrent connections was required for nationwide simultaneous system testing.
Solution
"Turning dry manuals into something fun."
Major Commercial Bank B
Developed color-coded microlearning courses (4-5 pages each) with activation events for app installation and course enrollment.
Mobile learning bypassed internal internet restrictions; the platform coordinated nationwide simultaneous system testing.
Results
A load test used an 18,000-concurrent-user condition, and system-manual training was distributed nationwide via mobile.
The 18,000 figure is a test result, not guaranteed standing capacity.
Insight
This case used mobile learning in a restricted-internet environment. The 18,000-user load-test condition and the approximately 18,000 learners are separate measures; neither guarantees standing capacity or learning outcomes.
