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DIKCA: data, information, knowledge, control, architecture

Sources: Huiwen Han, Intelligence beyond knowledge: control, architecture, and the structural law of artificial agency (AI and Ethics, 2026), doi:10.1007/s43681-026-01256-3; Architecture as Law (2026), doi:10.5281/zenodo.19822511.

Knowledge tells you what is the case. Control tells you what may be done. Architecture determines what can be governed at all.

From DIKW to DIKCA

The classical DIKW hierarchy — Data, Information, Knowledge, Wisdom — describes epistemic ascent. DIKCA adds two layers that are not epistemic:

Layer Role
Data Raw symbols or observations.
Information Data made meaningful relative to an observer and context.
Knowledge Claims about what is the case, with justification.
Control Constraints on what may be done, and enforcement of those constraints.
Architecture The constitutive structure that makes the other layers cohere as a governable system.

Autonomy is then treated as meta-control: the capacity of a system to modify its own control structures under architectural authorization.

The category error

A recurring mistake is to treat governance as a kind of knowledge. A policy document, a system prompt, or a safety instruction can represent a norm without enforcing it. A model may know the rule and still violate it. Knowledge and control are different logical types.

The practical consequence is blunt:

  • If a constraint is only described, it is advice.
  • If a constraint is enforced by an architecture, it is governance.

Architecture as law

Architecture as Law argues that architecture is a constitutive condition for governable AI. A system without an explicit architecture is not merely technically incomplete; its behavior cannot be predicted, constrained, or audited in a principled way.

Architecture is not the same as a diagram or a framework label. It is the set of constraints that determines:

  • which data structures are permissible;
  • which information flows are valid;
  • which knowledge claims can be represented;
  • which control mechanisms can be enforced.

Autonomy without architectural bounds is not advanced intelligence; it is a governance failure.

How it maps to AxisVela

DIKCA layer AxisVela examples
Data / Information Ingestion, events, assertions, traces
Knowledge GNOSIVELA concepts and evidence; ONTOVELA world state; MNEMOVELA memory
Control AEGIVELA policy, MODUREGIS capabilities, SYMBIVELA approvals, sandboxing
Architecture Contract boundaries, runtime seams, evidence architecture, deployment topology
Autonomy (meta-control) Bounded self-modification: policy change, capability registration, plan revision, agent lifecycle

The ecosystem’s emphasis on contracts, evidence, and control planes is a direct expression of this view: governance must be structural.

What to take away

  • Do not confuse a prompt with a policy.
  • Make the control layer enforceable and inspectable.
  • Treat architecture as a governance artifact, not only an engineering artifact.
  • Define the conditions under which an agent may change its own controls.