How I Ensure My Application Scales

Short summary

Build scalable systems by understanding your problem scope and defining success metrics (SLOs/SLAs/KPIs) before architecture choices. Use Big O notation and capacity planning to evaluate trade-offs like event-driven systems, balancing ROI against complexity. Monitor continuously; scalability is an ongoing process of constraint analysis and assumption validation, not a final step.

• •Define problem scope and success metrics (SLOs/SLAs/KPIs) before building any system
• •Use Big O notation and capacity planning to evaluate architecture trade-offs critically
• •Monitor continuously and iterate—scalability is a process, not a feature to add later

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