Summary

The City of Zurich commissioned a study to examine whether the open-source software OpenDesk can replace Microsoft 365. The Digital Competence Center Zurich and Bern University of Applied Sciences concluded that while OpenDesk meets many office requirements, central functions are missing. External telephony, browser-based limitations, and missing native apps are particularly critical. A practical test is planned.

People

  • Martin Holland (Author)

Topics

  • Digital Sovereignty
  • Open-Source Software
  • Public Administration
  • Microsoft 365 Alternative

Clarus Lead

While cities and federal states seek to strengthen their digital independence, practical implementation reveals a problem: OpenDesk is not yet technically mature enough for a widespread transition. The study concludes that administrations will continue to rely on proprietary Microsoft solutions – a signal of the limits of current open-source alternatives in public infrastructure.

Detailed Summary

The analysis identifies selective strengths and critical gaps. For email, chat, and file management, OpenDesk meets essential requirements; the calendar was praised for its intuitive interface. The presentation software also makes a good impression.

However, the weaknesses are significant: The browser-based architecture blocks notifications, sensor access, and security features. Mobile applications are limited to individual component apps – yet these are an intensively used standard in administrations. External telephony with number porting is completely missing, as are low-code automation capabilities.

Schleswig-Holstein is cited as a practical example, but it did not introduce OpenDesk; instead, it replaced old on-premise Office versions with open-source – a less demanding starting point. Even there, exceptions were found: a single-digit percentage (e.g., "heavy Excel users" in the tax administration) still requires Microsoft Office.

The study also warns against cost illusions: OpenDesk is more than 50% more expensive than comparable Microsoft packages. The Center for Digital Sovereignty does continue to develop OpenDesk (monthly updates); missing functions could be partially compensated through LibreOffice and Thunderbird. Nevertheless, this solution remains merely a snapshot for now.

Key Statements

  • OpenDesk meets basic functions (email, chat, file management, calendar), but is not a complete Microsoft 365 replacement
  • Browser-based architecture is the central technical barrier (notifications, sensor access, native mobile apps)
  • Cost is not an argument for switching: OpenDesk costs over 50% more than comparable Microsoft packages
  • Even in successful migrations, specialist groups (e.g., Excel power users) remain dependent on proprietary software

Critical Questions

  1. Evidence: How representative is the Swiss study for German administrations with different requirements and IT landscapes?

  2. Data Quality: Is the cost calculation based on productive deployments or only on list prices? Are implementation and training costs included?

  3. Conflicts of Interest: What economic or political incentive does the Center for Digital Sovereignty (ZenDiS) have to overstate or understate critical weaknesses?

  4. Causality: Is the browser-based architecture technically unavoidable, or is it a design decision that could be solved through alternative architectures?

  5. Alternatives: Why are only open-source suites tested and not commercial mid-market platforms (e.g., Nextcloud with paid enterprise modules)?

  6. Feasibility: How realistic is it that "all" public employees can work without specialized software, when a single administration (Schleswig-Holstein) already required exceptions?

  7. Time Horizon: Are monthly updates to OpenDesk fast enough to keep pace with Microsoft's development tempo, or is there a risk of increasing gaps?

  8. Risks: What happens to data and processes if administrations migrate to OpenDesk and then discover it is insufficient – is reverse migration technically and legally possible?

Sources

Primary Source: Digital Sovereignty: OpenDesk According to Study Not a Full Microsoft Alternative – heise.de, Author: Martin Holland

Verification Status: ✓ Based on study results from the Zurich Digital Competence Center and Bern University of Applied Sciences

This text was created with the support of an AI model.
Editorial responsibility: clarus.news | Fact-checking: 2024