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Entry 07PUBLIC HANDBOOK

Architecture, stack, and technology ecosystem

Separates Architecture, Stack, Runtime, Environment, Infrastructure, and Tooling; covers Runtime Profiles, provider neutrality, IaC, CI/CD, observability, and Tool Catalog.

Source & authority

Public explanation

PUBLIC HANDBOOK
Based on
Human Handbook 07 — Architecture, stack, and technology ecosystem
Related normative sources
  • NORMATIVE SOURCEStandard · Development Methodology
Authority
Public explanation — NON-NORMATIVE
Summary

Separates Architecture, Stack, Runtime, Environment, Infrastructure, and Tooling; covers Runtime Profiles, provider neutrality, IaC, CI/CD, observability, and Tool Catalog.

DCP Flow avoids treating architecture, stack, runtime, infrastructure, and tooling as synonyms. Each layer answers different questions and can evolve at a different pace.

Decision layers

Architecture defines structure and responsibilities; Stack names technologies; Runtime explains how software executes; Environment identifies contexts such as dev or production; Infrastructure provides resources; Tooling supports building, operating, and observing.

Key points
  • Architecture.
  • Stack.
  • Runtime and Runtime Profile.
  • Environment, Infrastructure, and Tooling.

A governed ecosystem

Provider neutrality, IaC, Configuration Drift, CI/CD, Observability, Automation, Orchestration, and the Tool Catalog keep technology subordinate to the solution. Tools are adopted by evidence rather than trend.

Key points
  • Cloud/provider neutrality.
  • IaC and drift.
  • CI/CD and observability.
  • Tool Catalog and Vendor Intelligence.

EspoCRM as an ADOPTED lightweight CRM

EspoCRM is DCP Flow’s adopted lightweight CRM option when a decoupled commercial lifecycle is needed without introducing a full ERP or building a CRM from scratch. ADOPTED does not mean mandatory: Solution Discovery and Project Truth still determine fit.

Key points
  • Own Blueprint.
  • Own Runtime Profile.
  • Core/vendor read-only.
  • CRM entities remain contextual.

Architecture, Stack, Runtime, Environment, and Tooling answer different questions

Architecture describes structure, responsibilities, and boundaries; Stack identifies primary technologies; Runtime explains how they execute; Environment defines the operating context; Infrastructure provides resources; Tooling helps build, deploy, and observe. DCP Flow governs these choices without becoming a technology itself.

Key points
  • Architecture ≠ tool inventory.
  • Stack ≠ Runtime.
  • Branch ≠ Environment.
  • Tooling serves the methodology.

Runtime Profiles and provider neutrality make deployment boundaries explicit

Each active Blueprint should express a proportional Runtime Profile covering local execution, cloud target, CI/testing compatibility, shared hosting, persistence, health, and recovery. Architecture separates the needed capability — such as object storage — from a provider-specific service. IaC helps version infrastructure and detect drift, but does not remove Human Gates.

Key points
  • Shared hosting: SUPPORTED / CONDITIONAL / NOT_SUPPORTED.
  • Capability ≠ provider service.
  • Runtime divergence must be known.
  • Reproducible IaC does not mean automatically authorized.

CI, observability, and vendor knowledge are capabilities, not authority

CI automates repeatable evidence, but a green pipeline is not Human Acceptance. Observability asks which signals are needed to detect and diagnose, not which product must be installed. Vendor Intelligence supplies official version-aware knowledge without allowing vendor documentation to define governance. The Tool Catalog reduces repeated research and separates adoption from experimentation.

Key points
  • CI result ≠ Human Acceptance.
  • Observability ≠ installing a tool.
  • Vendor knowledge complements; it does not govern.
  • EXPERIMENTAL ≠ ADOPTED.
Contextual glossary+
Architecture

Structure of responsibilities, boundaries, and relationships in a solution.

Stack

Set of concrete technologies used to implement an architecture.

Runtime Profile

Reproducible profile of the runtime environment required by a solution.

IaC

Infrastructure as code: versioned, reproducible infrastructure definition.

Observability

Ability to understand system state through logs, metrics, traces, and signals.