A coherent and connected Open Science infrastructure for the Netherlands.
Six deliverables, one reference model. A shared framework, and the tools that put it into practice.
AI-assisted: parts of this page were drafted with AI (Claude) and reviewed by the SPII team.
The six deliverables
The reference model, top row, and its matching tool, bottom row. Each tool operationalises the piece directly above it.
Values and Principles
Shared values and principles that define a connected Open Science infrastructure.
Open the page →Feedback →Principles Alignment Tool
Check how far an infrastructure component follows the shared principles.
Open the tool →Feedback →Landscape & Researcher Journey
A map of the ecosystem, seen through the path a researcher actually takes.
Open the page →Feedback →Inventory of infrastructures and projects
Existing components and projects, mapped to find overlaps and gaps.
Open the page →Feedback →Way of working
Feedback on every deliverable is collected in the open, on GitHub, and every outcome stays visible.
Each of the six deliverables has its own repository and issue tracker. Anyone, a researcher, an institution, or an infrastructure provider, can open an issue against a deliverable: a correction, a gap, or a proposal. The issue template asks for your name, organisation, role, and which infrastructure you represent, so the origin of the feedback is clear alongside its content.
A curator reviews incoming issues for each deliverable. The curator checks feedback against that deliverable's scope, decides whether it is incorporated, and records the outcome directly on the issue (accepted, rejected, or already covered) with a short rationale before closing it. Nothing is handled silently: an issue's status and the reasoning behind it stay visible in the tracker, so the deliverables stay a community effort in practice, not only in name. Who curates each deliverable will be published here once assigned.
About SPII
SPII, the Strategic Plan for Integrated Open Science Infrastructure, develops a plan for a coherent and connected Open Science infrastructure that supports researchers and institutions in practicing Open Science. The current Dutch landscape is fragmented: many universities, universities of applied sciences and national service providers are independently building parts of an Open Science infrastructure. SPII's response is a reference model, a broadly supported framework that describes the functions and relationships an infrastructure needs, while leaving room for each component's own implementation choices.
The reference model itself is the combination of the three deliverables in the top row below: Values and Principles, Landscape and Researcher Journey, and Capabilities and Interoperability. Together they let the operator of an infrastructure component check where it stands: (1) how far it practices Open Science, (2) where it fits in the wider landscape, and (3) how interoperable it is with other Open Science infrastructures. Each of the three is paired with a tool, in the bottom row, that puts it into practice, such as the Principles Alignment Tool for Values and Principles.
Building on POSI. In September 2026 SPII's principles subgroup proposed presenting the SPII principles as an extension of the Principles of Open Scholarly Infrastructure (POSI), which applicants to Open Science NL's infrastructure call will be asked to consider and which infrastructures internationally are adopting. On October 1, 2026, the values and principles working group decided: POSI v2.0 is the official assessment framework in the Principles Alignment Tool. The draft that merges POSI with the SPII principles POSI does not cover and adds a four-level maturity scale, POSI+SPII merged v0.5, will be shown to and discussed with POSI's authors and the wider POSI community. It needs careful review there, with the aim of a mandate for POSI to adopt it officially, on a global scale. The overlap analysis and the proposal are on the Values and Principles page.
Source: Towards a reference model for an open science infrastructure (SPII, version 20-07-2026).