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REST and GraphQL APIs, webhooks and event-driven services, built and documented for you.

System integration connects the separate applications, databases and devices an organisation runs so that they share data and work as one process. Arke Technologies (Pty) Ltd in Johannesburg designs, builds, tests and supports system integration for mid-sized and large organisations, public-sector bodies and schools across South Africa, under one contract and one SLA.
System integration is the work of joining separate systems (software, databases, hardware and cloud services) into one integrated computer system that behaves as a whole. In information technology, that means the CRM, the ERP that keeps the books, payroll, the website and the reporting tools pass data to each other automatically, under written rules about which system owns each record and what happens when a transfer fails.
Explained for a board or a budget committee, the system integration definition is short: data entered once, used wherever it is needed and trusted wherever it appears. The meaning goes beyond moving data. A good integration carries a process across systems, such as quote to order to invoice to payment, so people stop re-typing and reconciling spreadsheets.
A system integration example most organisations recognise: an order captured in the CRM creates the customer and the invoice in the accounting system, reserves stock and sends a payment link. When the payment clears, all three records and the management dashboard update. Without integration, that is four logins and a month-end reconciliation.
System integration and architecture go together: architecture decides how systems should fit, and integration makes them fit as each one changes. Once records agree, integrated data systems turn reporting into a query, and our data, analytics and business intelligence team can build dashboards on numbers everyone accepts.

What are the benefits of system integration? They show up in five places:

Integration texts describe 4 types of system integration, and most organisations run more than one. The type you choose decides how expensive the next change will be.
| Type | How it works | Suits | Watch for |
|---|---|---|---|
| Point-to-point (star) | Each system connects directly to every other system it needs | Two or three systems with simple needs | Connections multiply with each new system and become hard to maintain |
| Vertical | Systems are integrated within one function or silo | A single department or product line | Data still does not flow across functions |
| Horizontal (hub, bus or middleware) | Systems connect to a shared integration layer that translates between them | Mid-sized and large estates | The hub becomes critical infrastructure and needs its own monitoring |
| Common data format | Systems exchange data in one agreed format or canonical model | Organisations standardising their shared records | Design effort before the benefits show |
Inside a large organisation the horizontal approach is called enterprise application integration (EAI): an enterprise application integration system, usually middleware, sits between the business applications and translates between them. Integration also happens at three levels: data (records agree), application (systems call each other) and process (one workflow spans several systems).
Within each type, the methods and techniques of system integration are practical choices: real-time APIs and webhooks where a customer or process is waiting; event-driven messaging with queues where systems must not depend on each other being online; scheduled batch transfers for large volumes that can wait; and file or database links for older systems with no API.
As a system integrator, we build integration solutions around the systems you already run rather than asking you to replace them. Where no connector exists, the connection is software, built by our custom software development team; where the systems themselves need implementing, see business software.

REST and GraphQL APIs, webhooks and event-driven services, built and documented for you.

ERP system integration with Sage (50, 200, Business Cloud), Pastel Partner and Evolution, Xero, QuickBooks, SAP Business One, Microsoft Dynamics 365 Business Central, Odoo and NetSuite.

Records moved from an old system to a new one, validated at source and reconciled at destination, with a rollback plan.

PayFast, Yoco, Paystack, Peach Payments and Stripe, reconciled into your ledger.


Notifications, customer service and chatbots on the WhatsApp Business Platform.

Microsoft 365, Google Workspace, AWS, Azure and Google Cloud connected to each other and to on-premises systems, with identity through Entra ID.

CRM phone system integration (click-to-dial and call logging from Teams Phone or a hosted PBX into Salesforce, HubSpot or Zoho), and booking system integration with calendars, payments and reminders.

Firewall, endpoint, identity and Microsoft 365 logs brought into one SIEM, such as Microsoft Sentinel, so one team sees every alert.

Claude (Anthropic) and Gemini (Google, through Vertex AI) added to existing systems, with retrieval over your documents, guardrails, logging and cost controls.

Servers, storage and networks supplied through Server Hub, configured and bench-tested before dispatch, then integrated with the software they run.
Examples of system integration projects our team has delivered:

Server Hub, our IT hardware division, runs on a platform we built in-house: a catalogue of more than 26,000 products, quoting backed by dated sources, PayFast and Yoco payments and a Google Merchant integration.

AtlasOS brings client entities, CIPC and SARS data, deadlines, tasks and billing into one system for professional services firms, in production at Evolv Accountants.
Integration work we offer the public sector and education:

Billing, metering and property-valuation records reconciled, including data integration with the GIS where valuation records must match land parcels, with exception reports and systems that keep revenue from leaking again.

SA-SAMS exports and school administration data linked to a learning management system and to Google Workspace for Education or Microsoft 365 Education accounts.
The word is used across several engineering fields, so it helps to confirm which one you need:
How does system integration work in practice? Our methodology has six steps, and the process flow is the same whether a project connects two systems or twenty. Each step produces a document you keep, so the framework is as visible to your auditors as it is to us.
01.
We map systems, data flows, owners, interfaces and constraints, and draw a diagram of the current state. Typical examples of what the diagram shows: which system owns each record, how often data moves and where people re-key it.
02.
We agree the system integration strategy and approach (point-to-point, hub or event-driven), define data contracts, mappings, security boundaries, error handling and monitoring, and record it in a system integration design document you keep.
03.
The system integration plan sets scope, milestones, cutover, rollback and acceptance criteria, including a system integration test plan agreed with your process owners.
04.
Connectors and the integration layer, with retries, idempotent writes (a retried message never creates a duplicate), logging and alerts.
05.
Every flow tested end to end with realistic data, including failure modes: a system offline, a malformed record, a duplicate message. Your users then run acceptance testing.
06.
Go-live with monitoring of volumes, errors and delays, then support under an SLA with a monthly service review.
Five best practices hold on every system integration project: one owner for every record, a documented contract for every interface, retries and dead-letter queues so no message disappears silently, least-privilege service accounts, and change control with a rollback for every interface change.
| Challenge | What goes wrong | How we prevent it |
|---|---|---|
| Undocumented or weak APIs | The build takes longer than planned; hidden limits appear late | We test access and read the documentation in discovery, before we quote |
| Dirty or conflicting data | Duplicates and mismatches spread to every connected system | Data profiling and cleansing before go-live; one system of record per entity |
| Silent failures | Records stop flowing and nobody notices until month end | Alerts on volumes and errors, plus reconciliation reports |
| Vendor API changes | A supplier changes or retires an endpoint and the link breaks | Version tracking, change notices watched, fixes under the SLA |
| Security gaps | Integration accounts with broad access become an attack path | Least-privilege accounts, secrets kept in a vault, audit logs |
| Key-person dependency | Only one developer understands the integration | Documentation, runbooks and handover as contract deliverables |
The right integration software depends on your estate. Most organisations end up with a mix of three kinds of system integration software and tools.
| Option | Examples | Suits | Trade-offs |
|---|---|---|---|
| Built-in connectors | Native links between Microsoft 365 apps, or an accounting system's bank feed | Standard needs inside one vendor's products | Limited to what the vendor supports |
| Integration platforms (iPaaS) | Microsoft Power Automate, Azure Logic Apps and similar cloud integration services | Many systems with standard connectors; teams that want low-code | Per-user or per-run licences; data may be processed outside South Africa |
| Custom integration | APIs, webhooks and event-driven services written for you and run in your cloud account | Complex rules, high volumes, systems with no connector | Needs engineering and ongoing support |
We choose per flow and write the reasoning into the design document, so you are never locked into a tool because it was our preference.
System integration is priced as a project, then supported monthly. We quote a fixed scope after discovery; monitoring, fixes and changes to connected systems then run under an SLA billed monthly.
What drives the price:
For context, published hourly rates for IT project work in South Africa run from about R550 to R750 ex VAT (matnet.co.za, September 2026). We quote a scope and a price your budget committee can approve, not an open-ended hourly engagement.
Last reviewed: September 2026.

The integrator business model ranges from build-and-leave projects to integrations run under an SLA, so ask which one you are buying. When you compare system integration companies in South Africa, or system integration firms abroad, check:
System integration means connecting separate software, databases, devices and cloud services so they share data and work as one system. A record entered once flows to every system that needs it, a process such as order to invoice runs across systems without re-typing, and every transfer is logged. It covers design, build, testing and support.
A systems integrator designs how an organisation's systems should connect, builds the connections, tests them end to end and supports them in production. The work starts with mapping systems, data owners and interfaces, and ends with documentation, monitoring and a handover. A good integrator stays accountable for failures after go-live, not only for the build.
Common examples are a CRM that creates customers and invoices in the accounting system, an online checkout that reconciles payments into the ledger, and a mobile app that synchronises field orders with head office. Others include SA-SAMS data feeding a school's learning platform, or municipal billing reconciled with metering and valuation records.
The 4 types of system integration are point-to-point (each system linked directly), vertical (integration within one function), horizontal (systems linked through a shared hub or bus) and common data format (one agreed data model). Most organisations combine types as their estate grows, and the choice decides how costly the next change will be.
The three types of integration usually meant are data, application and process integration. Data integration keeps records consistent across systems; application integration lets systems call each other through APIs or messaging; process integration runs one workflow, such as order to invoice, across several systems. Most projects need all three.
Software integration is usually done through APIs and webhooks for real-time exchange, event-driven messaging through queues, scheduled batch transfers, secure file exchange, or direct database links for older systems. Integration platforms and built-in connectors package these techniques. The right choice depends on volume, urgency, each system's interfaces and the audit trail you need.
A simple integration between two well-documented APIs can take days, while a multi-system project with data transformation and workflow orchestration can take weeks or months. The quality of each system's API and the state of the data are the biggest variables. We give a detailed timeline and a fixed scope after discovery, before any build starts.
System integration is quoted as a fixed-scope project after discovery, followed by monthly support under an SLA. The price depends on the number of systems and flows, API quality, data volume and cleansing, and compliance needs. For context, published South African IT project rates run from about R550 to R750 an hour ex VAT (matnet.co.za, September 2026).
We will map your systems, show you the integration options and quote a fixed scope. Book a discovery call on 010 447 2445 or email info@arketechnologies.com; we aim to respond to new enquiries within one business day.