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AWS architecture patterns covering microservices vs monolith decisions, multi-tenancy, serverless design, database selection, and multi-account governance. Frameworks drawn from real enterprise and SaaS architecture engagements.
Assume 8 state transitions and 200 approved signups in a month: 1,600 transitions. Step Functions Standard includes 4,000 free transitions a month in US East (N. Virginia) at $0.000025 after that. The workflow marks READY only after the health check.
On October 9, 2026 Amazon Connect Customer added Save and validate in 8 Regions. Structural errors block activation. Gen AI warnings do not. The Gen AI check is capped at 3 in parallel and 30 per hour.
A lab design review still had a cron server for a nightly job. Classic Lambda had already stopped at 900 seconds. Name the primitive, or name the stop-rule that keeps the box.
A lab schedule after the 3 August 2026 GA returned findings and zero pull requests. Agentic-readiness scores 56 criteria. AWS-managed compute runs analyses only — remediation still needs Batch or EC2.
A lab renewal only changed the connection string, and a construct was still unconverted. Babelfish speaks TDS 7.1 through 7.4 on port 1433 and does not apply to Oracle. Identifiers longer than 63 characters are rewritten.
On October 1, 2026, AWS opened Well-Architected Agent in preview. One profile covers up to 100 accounts on a 7-day refresh, and Business+ is limited to 2 profiles. Developer and Business support have no access.
On 16 Sep 2026 AWS opened Sign up (new) with $100 in credits at signup, up to $200 over 6 months, and a project pinned to one of three Regions. Use advanced on day one for HIPAA, Marketplace, or a Region you choose.
On 18 Sep 2026 SNS raised the payload ceiling to 1 MiB, four times 256 KiB, but only after you set MaximumMessageSize. A full 1 MiB Standard publish is 16 requests. At 50 cents per million requests, one million of those publishes cost 8 dollars before the free tier.
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