Key points
- Cloud does not automatically mean SaaS or automatic security.
- On-premise ERP needs people, backups and continuity planning.
- Test the decision against real requirements and incidents.
Three models that are often confused
SaaS means using the vendor’s product as a service, usually by subscription. ERP can also be hosted in cloud infrastructure but managed specifically for one company. On-premise means the infrastructure is under the company’s direct control.
Clarify who administers the application, database, updates, backups and access. Server location alone does not answer these questions.
Cost and predictability
SaaS reduces the initial server investment, but subscription continues and may grow with users or modules. On-premise ERP needs infrastructure, replacement and administrators.
Compare both over the same period and include test environments, monitoring, security, updates and disaster recovery.
Access, performance and availability
Cloud supports access from several locations but depends on connectivity and vendor architecture. A local system may continue in some internet outages but can be exposed to a physical incident at the site.
Define acceptable downtime for each workflow and the team’s fallback. Then ask for evidence of monitoring, redundancy and data restoration.
Security and responsibility
No model is secure because of its label. You need authentication, roles, logging, updates, encryption, tested backups and an incident process.
In cloud services, responsibility is shared. The contract should state who protects each layer, where data resides and how it is returned when the relationship ends.
Integration and customization
Check API access, limits, maintenance windows and connection to local equipment or applications. SaaS can be simple to start but restrictive for a specific process.
For on-premise systems, customization must remain compatible with upgrades. Full control becomes a burden when each update needs costly intervention.
A simple decision matrix
Score total cost, time to launch, access, continuity, security, integration, data export and internal capability. Weight the criteria before seeing proposals.
Run scenarios: no internet, unavailable vendor, fast user growth, a new integration and contract termination. Concrete answers beat broad presentations.
Relevant Webmate resources
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Frequently asked questions
Are cloud ERP and online ERP the same?
The terms are used inconsistently. Ask about hosting, administration, isolation, updates and data ownership.
Can cloud ERP work without internet?
Some products offer limited offline features, but most operations depend on connectivity. Check the exact product.
Can we move data to another supplier?
You should be able to export usable data. Check the format, cost, timing and assistance in the contract.
