The standard establishes techniques for the evaluation of tribological performance of sliding contacts with a lateral size of between a few nanometres and 10 µm, and where the applied load is between 50 µN and 100 mN. It describes procedures for undertaking these measurements, and provides guidance on the effect of parameters on test results. It does not cover existing SPM techniques, such as frictional force microscopy and atomic force microscopy (AFM).
Understanding the CEN standardization process (part 1)
This webinar for CEN Technical Body Officers talks about:
Role and responsibilities of Technical Committees & Working Groups - their officers and members
From New Work Item to Publication with a special focus on Enquiry procedure associated with Formal Vote
Developing standards intended to be cited in OJEU (annex Z, risk assessment)
This webinar is open to all, but focuses on the basic processes of European standardization that CEN Technical Body Officers should know about when starting their work.
ISO 29481-2:2012 specifies a methodology and format for describing coordination acts' between actors in a building construction project during all life cycle stages. It therefore specifies a methodology that describes an interaction framework, an appropriate way to map responsibilities and interactions that provides a process context for information flow, a format in which the interaction framework should be specified. ISO 29481-2:2012 is intended to facilitate interoperability between software applications used in the construction process, to promote digital collaboration between actors in the building construction process, and to provide a basis for accurate, reliable, repeatable, and high-quality information exchange.
ISO 12006-3:2007 specifies a language-independent information model which can be used for the development of dictionaries used to store or provide information about construction works. It enables classification systems, information models, object models and process models to be referenced from within a common framework.
This International Standard provides a model and framework for integrating different standards as well as systems based on those specifications by supporting the use case specific identification and consistent, formal representation including constraints of necessary components and their relationships. It facilitates analysis and improvement of specifications under revision as well as the design of new projects. The approach is future proof due to its scientific soundness, based on systems theory, knowledge representation and knowledge management via ontology development and harmonization, that way supporting advanced interoperability between dynamic, multi-domain systems through knowledge and skills sharing in the context of intelligent cooperation. The approach is successfully deployed in several standards such as ISO 22600, ISO 21298, ISO 13606, ISO 12967, ISO 13940 and ISO 13972 (both under way), but also in most of the HL7 security specifications. The intended International Standard adopts objectives, content and presentation style used in other foundational standards such as ISO/IEC 10746, this way qualifying for a potential ISO/IEC 10746-6
This document specifies a set of representational primitives and semantic relations needed for an unambiguous representation of explicit time-related expressions in health informatics. This document does not introduce or force a specific ontology of time, nor does it force the use of a fixed representation scheme for such an ontology. Rather this document provides a set of principles for syntactic and semantic representation that allow the comparability of specific ontologies on time and the exchange of time-related information that is expressed explicitly. This document applies to both the representation of actual phenomena occurring in the real world (e.g. registrations in medical records) and to the description of concepts (e.g. medical knowledge bases). This document is applicable to a) developers of medical information systems where there might be a need for explicit time-related concepts for internal organization (e.g. temporal databases, temporal reasoning systems), b) information modellers or knowledge engineers building models for the systems mentioned in a), c) experts involved in the development of semantic standards on precise subdomains in health care where time-related information needs to be covered, (e.g. in the study of pathochronology, i.e. the discipline dealing with the time course of specific diseases), and d) developers of interchange formats for messages in which time-related information is embedded. This document is not intended to be used directly for — representing what is true in time, — reasoning about time, or — representation of metrological time.
This document specifies the general rules for an on-board data communication system between the different systems that may be used within public transport vehicles, based on the Internet Protocol (IPv4, [3] and IPv6, [4]). This includes operational support systems, passenger information systems, fare collection systems, etc. This document describes: - the requirements for an on board IP network; - the overview architecture and components for an IP based on-board network; - the modular structure of the network architecture; - the Service Oriented Architecture (SOA) approach, and approach to defining services. Systems directly related to the safe operation of the vehicle (including propulsion management, brake systems, door opening systems) are excluded from the scope of this document and are dealt with in other standardization bodies. However, the architecture described in this document may be used for support services such as safety information messages. Interfaces to safety-critical systems should be provided through dedicated gateways with appropriate security provisions; for the purposes of this document, these are regarded as simply external information sources. This document is designed primarily for vehicles with a fixed primary structure, where networks can be installed on a permanent basis and the system configuration task consists largely of the integration, adjustment or removal of the functional end systems that produce and/or consume data. Public transport vehicles consisting of units linked temporarily for operational purposes (specifically, trains in which individual engines, cars or consists are routinely connected and disconnected) require additional mechanisms to enable the communications network itself to reconfigure. Such mechanisms are provided through other standards, notably the IEC 61375 series [5].
The purpose is to define the tests to be performed in order to evaluate the performances of road applications’ GNSS-based positioning terminal (GBPT). To fully define the tests, this task will address the test strategy, the facilities to be used, the test scenarios (e.g. environments and characteristics, which shall allow the comparison of different tests), and the test procedures. The defined tests and process will be validated by performing various in-field tests. The defined tests focus essentially on accuracy, integrity and availability as required in the statement of work included in the invitation to tender. This document will benefit to: - The consolidation of EN 16803-1: "Definitions and system engineering procedures for the establishment and assessment of performances" - The elaboration of EN 16803-2: "Assessment of basic performances of GNSS-based positioning terminals" - The elaboration of EN 16803-3: "Assessment of security performances of GNSS based positioning terminals".
The objective is to analyse the security issues that can occur at the GNSS SIS level. In order to do so, a full taxonomy of the GNSS SIS attacks are proposed and GNSS SIS attack security model are elaborated and classified. Security metrics for the validation of the GBPT robustness performances are defined. The proposed methodology for this technical report consists in three distinct steps that are described hereunder: I. The first step consists in providing a full taxonomy of the possible GNSS Signal in Space attacks (voluntary or not) to be considered and identify their impact at GBPT level; II. The second step consists in regrouping narrow sets of previouslyidentified GNSS SIS attacks into security attack models. For each security attack model, an assessment of the dangerousness based on beforehand identified key parameters and methodology will be provided; III. The third step consists in providing definition of performance objectives, security control, security metrics, and a specific procedure for a robustness evaluation of a GBPT against the identified security attack models at step II. The results will benefit to the EN16803-3 "Assessment of security performances of GNSS based positioning terminals"
