From Classic PDLC to AI-Native Development
How the engineering process changes when AI becomes part of the production loop
How the engineering process changes when AI becomes part of the production loop
How the engineering process changes when AI becomes part of the production loop
Transition strategy
Part 1: Bimodal IT failure.
Part 2: SE 1.0 vs 2.0.
Part 3: DORA, Google, Meta, AWS.
Parts 4–5: limits and practices.
Fast vs slow IT
Mode 1: stable systems.
Mode 2: experimental speed.
McKinsey: Two Speed IT.
Diagnosis became operating model.
'Fast/slow' is too coarse.
Fast loop still hits the core.
DORA: speed and stability grow together.
Useful diagnosis; weak operating model.
Roles, stages, controls
Requirements → code → tests → release
Strength: artifact controls
Weakness: context transfer, long cycle
NIST SDLC — classic framing
Work shifts to AI tools
Issue → agent → PR → CI/CD.
Copilot agent, Amazon Q, AutoGen.
QA, security, analysis remain.
Control: PR, CI, branch protection.
Two modes with bilateral exchange
SE 1.0
Roles and stages are separate
Mature control points
SE 2.0
Roles compress into agent loop
PRs in minutes, new quality loops
DORA 2024: AI adoption reduced throughput.
Reason: AI sped up IDE, not delivery.
DORA 2025: correlation turned positive.
ROI comes from platform quality.
Source: Google
AI spans inner and outer loops.
Features prove value in real flow.
Funnel: latency, relevance, UX.
Productivity is designed and measured.
Source: arxiv.org/abs/2601.22832
22,126 generated tests.
JIT tests target a specific diff.
Less manual review and flaky-test noise.
Solutions return to SE 1.0 as standards.
Source: AWS DevOps Blog
AI generates requirements, code, tests.
Roles compress, not disappear.
Faster agentic loop needs guardrails.
AWS outages exposed AI-tool risk.
Local flow ≠ delivery
More changes → rework.
Faster code → instability.
Fast PR → bottleneck.
Local loop ≠ business gain.
Old guardrails become foundation
Branch protection and PR review
CI policies and policy-as-code
Audit trail for changes
Sandboxing, signing, SSDF
Thoughtful exchange, not victory
SE 1.0 → SE 2.0
Guardrails and security policies
Version control and audit trail
SE 2.0 → SE 1.0
E2E delivery scenarios
JIT tests and short feedback loops
SE 2.0 — greenfield, R&D, orchestration.
SE 1.0 — production backbone: platform, reliability.
Success is measured by DORA, SPACE, DevEx.
What to take away
AI changes speed and work organization.
SE 2.0 is a capabilities factory.
AI-native rebuilds creation, verification, delivery.
A unified engineering approach is required.
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Key sources
Gartner, McKinsey, NIST SDLC.
DORA 2024/2025, AI Capabilities.
Google AI, Meta JIT, AWS DLC.
Copilot, Amazon Q, AutoGen, SSDF.
From PDLC to AI-Native
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Alexander Polomodov, Technical Director & Fellow, T-Technologies
@Book_Cube