Business architecture
Define entities, roles, approvals, statuses, documents, service ownership and the operating model behind each user-facing action.
03 / Architecture
Architecture for fintech products, operations and secure integrations.
Fixosoft connects business workflows, application boundaries, data, permissions, provider integrations and operational controls into a build-ready architecture. The result is a shared map for product owners, engineers and reviewers.
BusinessApplicationDataSecurity
Technical architecture
Define application components, API boundaries, data ownership, environments, external providers and deployment responsibilities.
Security and resilience
Plan identity, least-privilege access, auditability, secrets, monitoring, backup, recovery and security review points.
Architecture package
Enough detail to build, review and operate the system.
Diagrams are tied to decisions and responsibilities, not produced as decoration. The package is adapted to a new platform, an existing system or a single critical subsystem.
Context and boundaries
Users, external systems, regulated providers, trust boundaries, data exchanges and responsibilities across the service.
Components and data
Applications, services, administrative surfaces, databases, queues, APIs and the ownership of important records.
Control model
Authentication, authorization, approvals, audit events, secrets, monitoring, backup, recovery and incident responsibilities.
Delivery roadmap
Build stages, dependencies, technical decisions, validation gates, migration considerations and operational handover.
Architecture decisions
Make trade-offs visible before they become production incidents.
The architecture should show what must remain simple today and what needs room to grow. It should also identify decisions that require provider, legal, compliance or security confirmation.
- Separate customer, staff, administrator and provider trust boundaries, with explicit permissions and accountable approvals.
- Keep provider failures, retries, reconciliation and manual recovery visible to the operating team—not hidden inside an API call.
- Match availability, retention, audit and recovery controls to the real business impact and verified requirements.
Delivery path
Architecture layers
Role-based workflowsProvider boundariesOperable recovery paths
Business and workflow layer
Entities, roles, permissions, documents, statuses, approvals, exceptions and operational ownership.
Application and integration layer
Interfaces, services, APIs, data boundaries, providers, environments and delivery dependencies.
Security and operations layer
Access rules, logging, monitoring, backup, recovery, change control and compliance-supporting evidence.
Professional clarification
Architecture can support PCI DSS or other compliance work where relevant, but a diagram does not create certification or legal compliance. Scope and controls must be validated against the actual payment flow, providers and applicable requirements.
Questions
Architecture questions before implementation.
The goal is a useful decision system—not a large document that becomes obsolete before development starts.
Yes. Fixosoft can deliver architecture as a standalone phase or continue into implementation.
Yes. The review can focus on workflow gaps, integration reliability, data ownership, access boundaries, observability and recovery.
When they affect the product, the package can include environments, deployment, networking, storage, monitoring and recovery decisions.
No. Fixosoft can design and implement supporting controls, while compliance scope and validation remain subject to the applicable standard, providers and qualified reviewers.
Page maintained and reviewed by the Fixosoft team. Last content review: 19 August 2026.
Build from shared decisions
Turn the operating model into a buildable system map.
Start with a new platform, a subsystem or an existing architecture that needs a practical review.