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Introduction

Skolfederation is member of This article provides an overview of the technical integration between Skolfederation and Skolverket's interfederation FIDUS, enabling school organizers access to services provided within FIDUS from other member federations, such as Skolverket's which allows schools to access services like digitized national tests (DNP) . In this article, the technical relationship and integration between Skolfederation and FIDUS is explained.We often receive questions regarding why schools cannot login to a FIDUS service such as the DNP verification tests, or why the school IdP does not show up in the FIDUS discovery service from other FIDUS member federations. It addresses common issues schools face when attempting to access FIDUS services, such as the delayed appearance of an Identity Provider (IdP) in the FIDUS Discovery Service (DS). A common error is that there are several systems that have to publish and synchronize the latest federation metadata key factor in these delays is the synchronization of federation metadata across multiple systems to establish the interfederational necessary trust which is required for a successful login attemptattempts.

The article introduces In this article, we will explain and illustrate the concept. Approximate Maximum Update Time (AMUT) will be used as the term for an estimated maximum a guideline for the maximum expected waiting time for a an IdP change in Skolfederation to be represented at relying parties' implementations in to propagate within FIDUS and other FIDUS member federations. AMUT values vary depending on the receiving service provider, with times ranging from 30 minutes for the FIDUS DS to over three hours for services like Beda. These estimates, current as of November 2025, help schools understand the timing and sequencing involved in metadata updates, ensuring smoother access to FIDUS services.

Resources

• More on FIDUS on Skolverket.se and the FIDUS GitHub

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