Colorectal Cancer Screening For All Of Vienna

One start date, many partners

The programme had a fixed start. On 9 June 2026 it opened to the public, and from that day on residents had to be able to register, order a kit and read their result. Every other decision had to fit that date.

The hardest parts we tackled:

• Many partners, moving specifications: The platform connects to Post, the laboratory and customer care at 1450, among others, each with its own systems and timelines. Requirements kept evolving while we built.
• Analog as good as digital: A target group aged 45 to 75 needs a path that works without a computer. Not everyone has an email address or wants an account. Residents can register by phone through 1450 and receive their result by post.
• Health data at the core: The platform handles sensitive health data. Privacy and security were a core requirement from day one and shaped every decision, from the architecture down to each email.
• Six languages from day one: The platform runs in German, English, Turkish, Bosnian, Croatian and Serbian.

One platform for the whole programme

A screening programme has many steps. Invitation, home test, logistics, laboratory, result and follow-up. WePrevent defined how these steps fit together and which partners and systems have to be connected. Our job was to build that on one platform.

For residents the path from registration to result had to be short and clear. Customer care works in the same system, and partners such as Post and the laboratory are connected directly. Fewer interfaces, fewer manual steps and a process that holds up with large numbers of participants.

We chose the stack based on the use case and kept it as simple as possible. Laravel with Blade, Alpine.js and Tailwind. Rendering happens on the server, which to us is a form of security by default, because sensitive data stays on the server. Queues send large waves of emails without slowing down the interface.