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How to Choose Business Software: A Decision That Will Shape Your Company for Years to Come
Choosing software isn't just another purchase. The tool you select will shape the way you work, take up a portion of your budget for years to come, and determine your dependence—or independence—on a software vendor. Whether you're choosing between standard SaaS, a configurable software package, or custom-built software, the right choice depends on specific criteria. Here they are.
Major Software Categories
Before making a comparison, we need to categorize the options. There are four main categories of business software.
- Standard software-as-a-service (SaaS) solutions such as Salesforce, HubSpot, or Odoo: rapid deployment, monthly subscription, designed to meet approximately 80% of a sector’s needs.
- Configurable software packages (such as SAP and Cegid ERP systems): more adaptable, but their configuration is still limited to what the vendor has provided.
- Custom software: Developed specifically for your company, it aligns 100% with your processes.
- Low-code/no-code tools (Airtable, Notion): quick to set up for simple needs, but quickly reach their limits as business logic becomes more complex.
| Criterion | Standard SaaS | Customizable software package | Custom-made |
|---|---|---|---|
| Alignment with Your Processes | Standard (~80% of the requirement) | Restricted by the publisher | Total (100%) |
| Cost Model | Recurring Monthly Subscription | License + Configuration | Investment, Owner Code |
| Code ownership | No (rental) | No | Yes, full transfer |
| Scalability | According to the publisher's roadmap | Limited to configurable options | Unlimited, depending on your line of work |
| Implementation period | Immediate | Average | Fast-paced with hyperdevelopment |
| Ideal for | General need, fewer than 15–20 users | Semi-standard process | Process = added value, more than 15–20 users |
General comparison: The right choice depends on your size, your processes, and your budget.
Why Consider Custom Software?
Every SaaS provider builds its product for the broadest possible audience. That’s its strength—and your limitation. The 20% of your needs that it doesn’t cover are often the very things that set you apart: your work methods, your management rules, and your unique metrics. With off-the-shelf software, you adapt to the tool; with customized software, the tool adapts to you.
Long reserved for large corporations due to cost considerations, custom solutions have become accessible to small and medium-sized businesses thanks togenerative AI. This is a new factor to consider in your decision-making process.
The 7 Criteria for Choosing Your Software
Beyond the listed price, there are seven criteria that should guide your comparison.
1. Alignment with Your Processes
Does the software fit your workflow, or do you have to work around its limitations with Excel exports and duplicate data entry? That’s the number one criterion.
2. The total cost over 3 to 5 years
Don't compare a monthly subscription to a one-time investment: consider the total cost of ownership, including licenses, modules, integrations, and internal time. Our guide to budgeting, timelines, and methodology details this calculation.
3. Ownership and Dependency
With SaaS, you’re essentially renting: you don’t own the code, and you’re subject to price increases. With a custom solution, you own the source code: it’s an asset, not a recurring expense.
4. Scalability
Your needs will change. Will you be able to adapt the tool to your business, or will you be dependent on a vendor’s roadmap that makes decisions for you?
5. Integration with Your IT System
Standalone software creates silos. Check to see if it can communicate with your other tools (ERP, CRM, accounting, Microsoft 365) via APIs and true interoperability.
6. Security, the GDPR, and Hosting
Where is your data hosted? Is it GDPR-compliant? For many small and medium-sized businesses, hosting in France or in a sovereign environment is a decisive factor.
7. The Implementation Deadline
A SaaS solution can be deployed quickly but comes with its own set of rules; a custom solution used to take months. With rapid development, that timeframe has plummeted—a point worth double-checking with each service provider.
Decision Support
Custom or standard? Talk it over with an expert.
IT Systèmes analyzes your processes and total costs, then gives you an honest assessment of whether a custom solution is right for you—with no obligation.
Explore our offerings and rates →Standard SaaS or Custom Software: The Tipping Point
Most companies start out with a SaaS solution, and that makes sense: no upfront investment, and you can get started right away. But the total cost rises as the number of users increases, and the tool imposes its own rules on your organization.
The tipping point is generally around 15 to 20 users: beyond that, custom software covers the same scope at a lower cost starting in the second or third year, with full ownership of the code. Below that threshold, or for a generic need, SaaS often remains the right choice. The question, therefore, is not “custom or off-the-shelf” in absolute terms, but “at what point does custom software become cost-effective for me?”
How to Choose Your Development Provider
If a custom solution is necessary, choosing the right service provider is just as important as choosing the right technology. Four points to consider:
- A method that minimizes risks: Choose a service provider who starts with your use cases and builds a working prototype rather than a 200-page requirements document. To set the right scope, learn how to write software requirements.
- Ownership of the code: Demand the full transfer of the source code and rights, without any dependencies.
- Security and Compliance: GDPR, Hosting in France, Best Practices in Development.
- Price transparency and follow-up: clear quotes, prioritization, and ongoing maintenance (TMA) after delivery.
Frequently asked questions
What are the criteria for choosing software?
The main factors: compatibility with your processes, total cost over 3 to 5 years, code ownership and vendor lock-in, scalability, integration with your information system, security and data hosting, and implementation time.
Is off-the-shelf software better than custom software?
It depends on the size of your organization and the specific nature of your processes. For fewer than 15 to 20 users, or for general-purpose needs, standard SaaS is often sufficient. Beyond that, or when your processes are your key competitive advantage, a custom solution becomes more cost-effective and sustainable.
What are the four types of software?
Standard software (SaaS), configurable software packages (configurable ERP), custom software (developed specifically for your needs), and low-code/no-code tools. The choice depends on the level of specificity of your processes, your budget, and your need for scalability.
How do you choose a software development provider?
Check their methodology (use cases and prototypes rather than a specification tunnel), the quality of the code they deliver, their security and compliance guarantees, and the transparency of their pricing and post-delivery support.
Are you trying to decide between several options?
We'll objectively compare your options, backed by data, and let you know if a custom solution is worth it for you. No obligation.
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