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ADLC Has Six Definitions and Zero Consensus — I Compared Every Major Framework
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- DeepHorus
The term “Agentic Development Lifecycle” has six definitions and zero consensus, according to a review of frameworks published in the first half of 2026. The comparison examined offerings from a cloud consultancy, a security vendor, a systems integrator, a boutique dev shop, and an enterprise ops firm. All use the same acronym, but disagree on phase counts, priorities, and even whether it is a new lifecycle at all.
Behind the acronym lies a real problem. The classic Software Development Lifecycle assumes behavior can be specified at build time and tested before release, but agentic systems reason across context they do not fully control. A non-peer-reviewed preprint shows issue-resolution rates on SWE-bench Verified jumped from under 2% to over 78% between October 2023 and April 2026. That shift demands some change in the SDLC.
EPAM defines ADLC as a lifecycle where the model sits at the core of product behavior, not a human with AI assistants. It front-loads tasks like defining business and technical KPIs, mapping human-agent decision ownership, and data-readiness reviews. Codebridge structures ADLC as six named phases including Ideation and Intent Specification, Development, and Governance, with a “Capability Matrix” for deciding where to use LLM reasoning versus deterministic logic.
Sumatosoft takes a different shape: five pillars applied across seven phases. Its cost-governance pillar, demonstrated in a token-economics review, caught a design flaw that would have cost $180,000 per month, then a model-routing fix reduced it to $22,000. Cycode views ADLC primarily as a security challenge, noting the volume of AI-driven changes exceeds human review capacity.
Because Gartner and Forrester have not stepped in to settle a standard, each vendor attaches the label to what it already wanted to sell. This makes it difficult for organizations to compare offerings or adopt best practices. The lack of consensus does not negate the need for change, but it raises the question of whether “ADLC” names a coherent answer or simply a marketing label.
Going forward, the industry may need a common framework or at least agreement on core principles. Without that, enterprises risk adopting incompatible lifecycles and amplifying the very governance problems the term promises to solve.
