What are the advantages of a 5-stack instance structure that consists of development, quality assurance, user acceptance testing, staging, and production?
A 5-stack instance structure (dev, QA, UAT, staging, production) provides several advantages:
A. Staging instance for troubleshooting: The staging instance closely mirrors the production environment, allowing for thorough testing and troubleshooting of changes before they are deployed to production.
C. Deployment testing: Each instance serves a specific testing purpose (QA for functional testing, UAT for user acceptance testing), ensuring comprehensive validation before production deployment.
D. Increased parallel activity: Different teams can work simultaneously in their respective instances, increasing development and testing efficiency.
Why not the other options?
B. Lower maintenance effort: A 5-stack structure can actually increase maintenance effort due to the need to manage multiple instances.
E. Single Dev track: A 5-stack structure typically supports multiple development tracks or branches.
[Reference: ServiceNow instance strategy best practices, =================]
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