Name: Consistent Time (IHE CT)
Identifier: IHE CT
Issuing Organisation: Integrating the Healthcare Enterprise (IHE)
Organization website (opens in new window): https://www.ihe.net/
Link to standard (opens in new window): https://wiki.ihe.net/index.php/Consistent_Time
Availability: Free to Access
Type: IHE Profile
Issue Year: Not known
Forward Review Date: Not known
Intended Audiences: Third (Voluntary) Sector Bodies, Private Sector Bodies, Professional and Trade Bodies, and Governmental and Public Sector Bodies
The Consistent Time Integration Profile (CT) provides a means to ensure that the system clocks and time stamps of the many computers in a network are well synchronized. This profile specifies synchronization with a median error less than 1 second. This is sufficient for most purposes. CT defines mechanisms to synchronize the time base between multiple actors and computers. The Consistent Time profile requires the use of the Network Time Protocol (NTP) defined in RFC 1305. When the Time Server is grouped with a Time Client to obtain time from a higher tier Time Server, the Time Client shall utilize NTP. For some Time Clients that are not grouped with a Time Server, SNTP (see RFC 4330) may be usable.
Relevance to Active and Healthy Ageing: Medium
Older Person Specific: No
Usage / Adoption status: IHE Profile endorsed by European Commission for Public Procurement
This IHE Profile is an essential building block in establishing interoperable digital tools in support of healthcare, thereby supporting seamless integrated healthcare for all generations incl. the elderly. This IHE Profile is mentioned in COMMISSION DECISION (EU) 2015/1302 of 28 July 2015 on the identification of ‘Integrating the Healthcare Enterprise’ profiles for referencing in public procurement (see Official Journal of the European Union, L199/43): (7) On 2 October 2014, the European multi-stakeholder platform on ICT standardisation evaluated 27 ‘Integrating the Healthcare Enterprise’ (IHE) profiles against the requirements set out in Annex II to Regulation (EU) No 1025/2012 and gave a positive advice to their identification for referencing in public procurement. The evaluation of the 27 IHE profiles was subsequently submitted to consultation of the eHealth network established by Article 14 of Directive 2011/24/EU of the European Parliament and of the Council (2) that confirmed the positive advice to their identification. (8) IHE develops ICT technical specifications in the field of healthcare information technology. The 27 IHE profiles are detailed specifications developed over a period of 15 years within the committees of IHE that optimise the selection of well-established standards describing the different layers of interoperability (i.e. protocol communication, technical, syntactical, semantic and application levels) with a view to find interoperability solutions for exchanging or sharing medical data. (9) The 27 IHE profiles have the potential to increase interoperability of eHealth services and applications to the benefit of patients and medical community. The 27 IHE profiles should therefore be identified as ICT technical specifications eligible for referencing in public procurement.
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