![Sustainability | Free Full-Text | Theoretical Availability versus Practical Accessibility: The Critical Role of Metadata Management in Open Data Portals | HTML Sustainability | Free Full-Text | Theoretical Availability versus Practical Accessibility: The Critical Role of Metadata Management in Open Data Portals | HTML](https://www.mdpi.com/sustainability/sustainability-10-00545/article_deploy/html/images/sustainability-10-00545-g002.png)
Sustainability | Free Full-Text | Theoretical Availability versus Practical Accessibility: The Critical Role of Metadata Management in Open Data Portals | HTML
![SIST-TS CEN/TS 17234:2019 - Intelligent transport systems - eSafety - eCall: Tests to enable PSAPs to demonstrate conformance and performance SIST-TS CEN/TS 17234:2019 - Intelligent transport systems - eSafety - eCall: Tests to enable PSAPs to demonstrate conformance and performance](https://cdn.standards.iteh.ai/images/65206/72bb66182c6144d188459ac07070ff42/page1.jpg)
SIST-TS CEN/TS 17234:2019 - Intelligent transport systems - eSafety - eCall: Tests to enable PSAPs to demonstrate conformance and performance
![SIST-TS CEN/TS 17234:2019 - Intelligent transport systems - eSafety - eCall: Tests to enable PSAPs to demonstrate conformance and performance SIST-TS CEN/TS 17234:2019 - Intelligent transport systems - eSafety - eCall: Tests to enable PSAPs to demonstrate conformance and performance](https://cdn.standards.iteh.ai/images/65206/72bb66182c6144d188459ac07070ff42/page3.jpg)
SIST-TS CEN/TS 17234:2019 - Intelligent transport systems - eSafety - eCall: Tests to enable PSAPs to demonstrate conformance and performance
Critical Link International 9 Conference Proceedings International University of Health and Welfare, Akasaka, Tokyo Japan 14-16,
![EN 62616:2010 - Maritime navigation and radiocommunication equipment and systems - Bridge navigational watch alarm system (BNWAS) EN 62616:2010 - Maritime navigation and radiocommunication equipment and systems - Bridge navigational watch alarm system (BNWAS)](https://cdn.standards.iteh.ai/images/22198/0059810aa21d416da8829cda776d8af0/page1.jpg)