A central usage
The first version addresses a complete journey, rather than adding isolated features.
03 · Build
Business software & SaaS.
The tool suited to real work.
Mellion designs the portal, internal tool, or platform missing from your organisation or market. The product is scoped with the teams, prototyped before development, then deployed on a secure and documented basis.
The problem we address
When the standard tool forces the team to work around it.
Parallel spreadsheets, versions sent by email, information copied between multiple applications and statuses known only to a few people: these workarounds often signal that a central system is missing or that the current tool no longer meets the business needs.
We first check if an existing solution already meets the need. When customisation is justified, the first version focuses on the critical journey, essential data, and rules that truly differentiate your activity.
Reliable information
Documents, statuses, decisions, and responsibilities are gathered in a common system.
A dynamic foundation
The architecture, permissions, and integrations are designed to accommodate the following uses.
The Method
Validate the product before adding features.
Each step reduces a risk: building the wrong tool, making the process incomprehensible, underestimating data, or deploying without the ability to track.
- 01 · Scoping
Define the Product
Problem, users, critical journey, rules, data, and expected outcome.
- 02 · Prototype
Test before coding
Screens, navigation, content, and decisions validated with future users.
- 03 · Build
Deliver a useful version
Development, integrations, rights, testing, and data migration required.
- 04 · Deploy
Maintaining the system
Deployment, training, documentation, supervision, and roadmap.
The scope
Product, user experience and technology working together.
Internal Business Tools
- Case file and workflow management
- Specialized CRM and operations
- Dashboards and Monitoring
- Standards and Document Research
Customer and partner portals
- Secure Spaces and Roles
- Documents, requests, and validations
- Progress tracking and notifications
- Billing or signing as needed
B2B platforms & SaaS
- Value proposition and usage model
- Onboarding and account management
- Subscriptions, permissions, and administration
- Measurement of adoption and product evolution
Technical foundation
- Architecture and data model
- Existing APIs and integrations
- Security, Backups, and Hosting
- Testing, documentation, and observability
Typical case
A study bureau manages its files through emails and shared documents.
- Situation
- Each file exists in multiple versions. The team, the client, and partners do not share the same level of progress or the same list of decisions.
- Mellion's response
- A secure portal centralizes files, documents, statuses, deadlines, roles, and validations, with a viewable history for authorised individuals.
- Targeted result
- A reliable status available at any time, fewer coordination reminders, and focused exchanges on key decisions.
Key performance indicators project timeline, back-and-forth iterations, versioning errors, adoption, and research time
Frequently Asked Questions
Before building custom software.
When should we build rather than buy software?
When the process is differentiating, market solutions impose too many workarounds, or the tool must become a product. For a well-covered standard need, purchasing remains preferable.
How long for a first version?
After scoping and the prototype, a targeted first version typically requires four to ten weeks. The timeframe depends on the roles, integrations, data, and security requirements.
Who owns the developed software?
The contract specifies the ownership of the specific code, data, accounts, and documentation to avoid hidden dependencies and make the terms of resumption clear.
Who is responsible for hosting and maintenance?
Mellion can organise hosting, monitoring, backups, security updates, and evolutions. This scope is defined separately from the initial construction.
Your next step
Is your team forced to work around its tools?
A first exchange helps distinguish what needs better configuration, automation, procurement, or actual construction.
In France, Brussels, and Madrid
Mellion accompanies you across France, Brussels, and Madrid to design your custom business software, portals, and SaaS solutions. Initial scoping is done by video call. If the project requires it, our on-site team members will then visit your premises, anywhere in France, Brussels, and Madrid.
Explore our ways we work in the Hauts-de-France and in Île-de-France.