How to choose a SCADA software: five questions before making a decision

Choosing a SCADA software is not simply a matter of meeting an immediate need for industrial supervision. It is a fundamental decision that will shape the long-term performance, safety and scalability of your operations.  Given the wide range of solutions available, it is easy to get lost amidst technical promises, advanced features and integration constraints. However, the wrong choice can lead to significant costs, adoption difficulties… or even setbacks in your future digital transformation projects. To avoid these pitfalls, here are five essential questions to ask yourself before choosing your SCADA software. 

1. What are your business needs today? 

Before choosing a SCADA software, you must first define your requirements precisely. This analysis involves the following elements in particular:

• The types of installations to be supervized, the number of sites, pieces of equipment and measurement points.
• The hardware brands and associated communication protocols.
• The overall architecture of the information system.
• The criticality level of the processes to be monitored: what is the tolerance for failure or data loss?
• Specific functional requirements: management of remote alarm notifications, reporting, dashboards, etc.

The deployment context is just as important as the technical requirements: it determines how effectively your teams will adopt the tool. Several aspects are worth considering at an early stage:

• The proposed SCADA architecture (thick client, thin client, mobile app, etc.) and the associated access rights.
• IT integration and interactions with other components of the information system.
• Those responsible for configuring and maintaining the SCADA application.
• End users and their technical proficiency with the tool.

2. What will your business needs be in the future? 

A SCADA software is a long-term investment: it must adapt to changes in your facilities without becoming an obstacle to your future projects. Check the following points:

• Scalability: your solution must grow with your needs (new sites, increasing data volumes, scaling up, etc.).
• Openness and interoperability: availability of APIs, compliance with open standards, and the ability to integrate with your business software and equipment, regardless of the supplier.
• Compatibility with a future IIoT strategy involving the integration of connected sensors.
• Software modularity and architectural evolutivity to adapt to your on-site needs over time.

Beyond your technical installation, the software publisher’s ability to evolve its solution and incorporate new emerging technologies ensures the long-term value of your investment.

Discover our specifications model for your SCADA project >>

3. What will be the adoption rate of the chosen SCADA software?

The adoption of a SCADA software by teams cannot be imposed. It depends on several practical factors:

• Features tailored to real-world applications in the field, without unnecessary over-engineering.
• A clear and user-friendly interface, designed with teams in mind.
• Ease of configuration and operation, to gain greater autonomy without having to rely on an integrator at every turn.
• The quality of the training and technical support offered by the software publisher.
• Multi-user access, including on the move.

Involving future users (in configuration and operation) in the choice of solution remains a best practice that is all too often overlooked. In day-to-day use, they will be the ones putting the tool to work: their buy-in is key to the project’s success.

4. How does it fit in with your security and business continuity requirements? 

Industrial supervision often touches on the very heart of your critical infrastructure. Security and service continuity are not mere luxuries. They require methodical control:

• Detailed management of user rights and profiles, including roles and permissions.
• Encryption of communications.
• A policy of regular updates and transparent disclosure of vulnerabilities identified by the software vendor (see the dedicated page for AREAL >>).
• Traceability of operator actions, server redundancy to ensure application availability, and backup and recovery mechanisms in the event of a failure.
• Compliance with current regulatory frameworks and adherence to ANSSI best practices.
• Recognised certification for the software publisher, such as ISO 27001.

These criteria are even more important for Operators of Vital Importance (OVIs) under the European NIS Directive, or for essential and important entities under the new NIS 2 Directive.

5. What will its actual cost be over its entire lifespan? 

The price of the software itself is only part of the equation. To compare solutions objectively, one must consider the total cost of ownership (TCO) of the SCADA project, taking into account:

• The licensing model: one-off purchase or subscription.
• Integration and initial deployment.
• Maintenance, support and updates.
• Staff training.
• The cost of future developments: new sites to be added, new data sources, new options, new users, etc.

For a long-term investment, the strength of the software publisher also affects the final cost of the solution. Its track record, sector-specific references, the responsiveness of its multilingual support and its roadmap are all factors to be assessed.
Choosing a SCADA software is a strategic decision that goes far beyond technical considerations. By asking yourself the right questions about your needs, your architecture, your teams, security, costs and the solution publisher, you maximise your chances of making a sustainable and effective choice.