Architecture Constraints

Executive Summary

Architecture Constraints define the boundaries that future Algosure technical design must respect.

Why This Exists

Constraints make the architecture realistic and governable. They prevent implementation teams from making decisions that conflict with the Blueprint, domain ownership, security, AI governance, or release sequencing.

Owner

The owner is the Chief Product Officer and Enterprise Architect.

Business Value

Constraints reduce rework and ambiguity by clarifying what architecture must not do.

Constraints

Constraint	Meaning
No implementation detail in Architecture Foundation	v0.2 defines governance and direction, not code, APIs, schemas, or deployment configuration.
Blueprint alignment is mandatory	Architecture must implement the Blueprint rather than replace it.
Domain ownership cannot be bypassed	Source facts must remain owned by their Domains.
Human approval gates are required	High-impact decisions require explicit approval support.
AIOS does not own facts	AIOS coordinates work but does not become a source Domain.
Modular monolith first	Initial architecture should favor modular monolith discipline before microservice extraction.
Tenant isolation is mandatory	Tenant context must be present across architecture decisions.
Security is foundational	Identity, authorization, audit, and data access cannot be deferred.
Events must be governed	Event ownership, semantics, versioning, and idempotency must be reviewed.
APIs must be governed before implementation	API-first does not mean API-sprawl. Contracts must be deliberate.

Constraint Diagram

flowchart TD
    Blueprint[Blueprint]
    Constraints[Architecture Constraints]
    Domains[Domain Ownership]
    AIOS[AIOS Orchestration]
    Human[Human Approval]
    Security[Security and Tenant Isolation]
    Modules[Modular Monolith]
    Events[Governed Events]
    Future[Future Engineering]

    Blueprint --> Constraints
    Constraints --> Domains
    Constraints --> AIOS
    Constraints --> Human
    Constraints --> Security
    Constraints --> Modules
    Constraints --> Events
    Constraints --> Future

Out-of-Scope Constraints

The following must not be defined in this layer:

• Endpoint URLs.
• Request and response payloads.
• SQL tables.
• Cloud resources.
• Runtime queues or brokers.
• Model provider configuration.
• Frontend component designs.