Billing Domain

Why This Exists

The Billing Domain is responsible for subscription plans, trials, billing accounts, invoices, payments, payment failures, subscription status, plan limits, usage limits, entitlements, renewals, cancellations, and billing notifications.

Algosure is an AI Digital Procurement Company. Customers need clear access to the capabilities they have subscribed to, predictable billing, transparent invoices, governed entitlements, and reliable handling of renewals, cancellations, trials, limits, and payment failures.

Owner

The owner is the Chief Product Officer and Enterprise Architect.

Billing owns subscription, billing account, invoice, payment, entitlement, usage limit, renewal, cancellation, and payment failure state.

Business Value

Billing converts commercial packaging into operational access. It protects revenue, supports subscription lifecycle management, enables plan-based entitlements, and gives customers confidence that subscription status and invoices are transparent.

Domain Definition

The Billing Domain manages:

• Subscription plans.
• Trials.
• Billing accounts.
• Subscriptions.
• Subscription status.
• Invoices.
• Payments.
• Payment failures.
• Plan limits.
• Usage limits.
• Entitlements.
• Renewals.
• Cancellations.
• Billing notifications as Billing-owned facts requested through Notification.

Plan Catalogue

Plan	Purpose
Free	Entry-level access for exploration, onboarding, or limited usage.
Starter	Basic paid access for small organizations beginning procurement work.
Professional	Expanded access for active tendering and structured procurement workflows.
Business	Higher-capacity access for teams, collaboration, reporting, and broader capability use.
Enterprise	Contracted access for advanced requirements, governance, support, integrations, and negotiated limits.

Ownership Boundaries

Concept	Owning domain
Subscription, billing account, invoice, payment, payment failure, entitlement, usage limit, renewal, cancellation	Billing
Customer organization identity and business profile	Organization
Billing notification delivery state	Notification
Revenue and subscription reporting metrics	Analytics
Plan explanations and upgrade recommendations	Intelligence
Product capability definitions	Owning product/domain capability areas

Domain Relationship Overview

flowchart TD
    Organization[Organization]
    Billing[Billing Domain]
    Notification[Notification]
    Analytics[Analytics]
    Intelligence[Intelligence]
    Platform[Platform Access]
    PaymentProvider[Payment Provider]

    Organization -->|OrganizationId and billing contacts| Billing
    Billing -->|billing notification requests| Notification
    Billing -->|subscription and revenue events| Analytics
    Intelligence -->|plan explanation and upgrade recommendation| Billing
    Billing -->|entitlements and limits| Platform
    PaymentProvider -->|payment status callbacks| Billing

Domain-Driven Design Position

Billing is a supporting domain with direct commercial importance. It does not own customer organization identity, platform capability definitions, notification delivery, analytics reporting, or AI reasoning. It owns the accepted subscription state and all billing lifecycle records.

What This Domain Does Not Own

Billing does not own tender data, compliance state, bid workspaces, contract delivery, supplier records, learning progress, or notification delivery state. Billing may restrict access through entitlements and limits, but the operational facts remain in their owning domains.