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ΕΚΤ Access to Knowledge ΕΚΤ Access to Knowledge CERIF API: Access and reuse research information in CRIS Dimitris Karaiskos Vasilis Bonis, Nikos Pougounias.

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Presentation on theme: "ΕΚΤ Access to Knowledge ΕΚΤ Access to Knowledge CERIF API: Access and reuse research information in CRIS Dimitris Karaiskos Vasilis Bonis, Nikos Pougounias."— Presentation transcript:

1 ΕΚΤ Access to Knowledge ΕΚΤ Access to Knowledge CERIF API: Access and reuse research information in CRIS Dimitris Karaiskos Vasilis Bonis, Nikos Pougounias National Documentation Centre / National Hellenic Research Foundation, Greece 1

2 ΕΚΤ Access to Knowledge Outline Specification of CERIF API v1.0 o Identity o Supported Operations o Entities and Parameters Implementation of CERIF API v1.0 o CERIF tools implemented o Maturity and systems using CERIF API Usage examples of CERIF API v1.0 2

3 ΕΚΤ Access to Knowledge CERIF API Specification Who: euroCRIS - Architecture & Development Task Group o 11 members (http://eurocris.org/community/taskgroups/architecture- development )http://eurocris.org/community/taskgroups/architecture- development When: November 2013 (started) - August 2015 (published stable v1.0) o 4 revision cycles Why: o To facilitate the interoperability of CRIS systems and their integration with other information systems o To enable the development of applications, services and components that can access and reuse information across different CRIS systems in a standard, unified way Found @ http://eurocris.org/cerif-api-v10http://eurocris.org/cerif-api-v10 3

4 ΕΚΤ Access to Knowledge CERIF API Specification Addressed to: o Organizations and individuals (e.g. software developers, product managers, CRIS managers) involved in the implementation of CRIS systems and related services. o Organizations and individuals (e.g. software developers, product managers) involved in the development of software applications, services and components that can benefit from retrieving and reusing the information stored in CRIS systems Current Functionality: o The present version 1.0 of the API addresses basic aspects of read-only access to information in CRIS systems. o Operations that alter the data in CRIS systems (for example, Create, Update and Delete) as well as sophisticated search facilities are planned for later versions of the API Found @ http://eurocris.org/cerif-api-v10http://eurocris.org/cerif-api-v10 4

5 ΕΚΤ Access to Knowledge CERIF API Specification API technology: HTTP REST o simplicity for developers o ubiquity and inherent support for CRUD operations o Use of HTTP as an application protocol (i.e. HTTP verbs for defining operations, HTTP message codes for addressing exceptions) Response Output Format: XML o content/MIME type = application/xml CRIS Data Output Format: CERIF XML o CRIS data in CERIF XML o Calls serving meta information about CRIS follow a simpler new non-CERIF XML scheme (currently 1 call in the API) Found @ http://eurocris.org/cerif-api-v10http://eurocris.org/cerif-api-v10 5

6 ΕΚΤ Access to Knowledge CERIF API Supported Operations 1. Get data on all instances of a particular type of entity GET /{entity name in plural}?identifiersOnly=[true | false]&{pagingSpec}&{returnedEntitySpec} 2. Get all information about a particular instance of a particular type of entity GET /{entity name in plural}/{id}?{returnedEntitySpec} 3. Get information about all CERIF entities (core and link entities) supported by the CRIS system GET /entities 6

7 ΕΚΤ Access to Knowledge CERIF API Supported operations 4. Get semantic layer contents from a CRIS GET /semantics 5. Search by classification GET /{entity name in plural}?class={class UUID}&classScheme={class scheme UUID}&{pagingSpec}&identifiersOnly=[true | false]&{returnedEntitySpec} 6. Search by Federated Identifier GET /{entity name in plural}?fedIdClass={class UUID specifying the type of federated identifier}&fedId={value of federated identifier}&{returnedEntitySpec} 7

8 ΕΚΤ Access to Knowledge Entities and Parameters EntityURL label cfProject/projects cfPerson/persons cfOrgUnit/orgunits cfResultPublication/publications cfResultProduct/products cfResultPatent/patents cfFunding/fundings cfService/services cfFacility/facilities cfEquipment/equipments cfMedium/media cfIndicator/indicators cfMeasurement/measurements cfEvent/events cfPAddr/postaladdresses cfEAddr/electronicaddresses cfGeoBBox/geobboxes cfCitation/citations cfCV/cvs cfPrize/prizes cfQualification/qualifications cfExpertiseAndSkills/expertiseandskills 8 Shortcut descriptionFormat of query fragment Example query fragments Paging specification Shortcut: (paging Spec) How API clients specify within a request the desired paging functionality. Parameters: offset [integer, optional, default=0] pageSize [integer, optional, default=20, max=200] offset=0&pageSize=100 offset=1500&pageSize =100 offset=0&pageSize=200 Returned entity content specification Shortcut: (returnedEntitySpec) How API clients specify within a request which data elements will be contained within returned CERIF Entity instances. Parameters: fedIds [true | false, default=true] classifications [true | false, default=true] links [true | false | {cerifEntity1;cerifEntity2;...;cerifEntityN}, default=true] linkedObjects [true | false | {cerifEntity1;cerifEntity2;...;cerifEntityN}, default=false] linkedSemantics [true | false, default=false] http://api.examplecris.org/p rojects/2c9083b43ec281df0 13ec285e81a0000?fedIds=f alse http://api.examplecris.org/p rojects/2c9083b43ec281df0 13ec285e81a0000?fedIds=t rue&classifications=true&lin ks=orgunits&linkedObjects= true

9 ΕΚΤ Access to Knowledge HTTP Response 9 1. Header (not the HTTP header!) Data about the source CRIS system Data useful for paging results The query 2. Payload The actual data retrieved from the CRIS system in response to the request CERIF XML structure for all calls except call #3 (GET /entities) which follows a custom XML response

10 ΕΚΤ Access to Knowledge CERIF API Implementation Who: National Documentation Centre, Greece on behalf of euroCRISNational Documentation Centre, Greece o Implementation o Maintenance and support When: o 1st prototype of the CERIF API: September 2014 (based on an earlier version of the API) o 1st production implementation CERIF API: August 2015 (based on the CERIF API version 1.0) Found @ http://cc-refim.ekt.gr/cerif-rest-refim/http://cc-refim.ekt.gr/cerif-rest-refim/ 10

11 ΕΚΤ Access to Knowledge CERIF Tools (1/2) CERIF Model o All CERIF entities as POJOs o 100% compliant to the latest CERIF version CERIF Services o JPA data repositories for all entities o Common persistence and selection services CERIF XML o Full support of CERIF 1.6 XML Schema CERIF API o RESTful services o OAI-PMH – per entity retrieval 11

12 ΕΚΤ Access to Knowledge CERIF Tools (2/2) 12 Open source o http://github.com/EKT/CERIF-Tools http://github.com/EKT/CERIF-Tools Maturity o 4 years of continuous development o Deployed on a plethora of production systems (nationally and internationally) Ongoing Maintenance o Tools aligned to CERIF versions o New features and bug fixing

13 ΕΚΤ Access to Knowledge Production Systems using CERIF API National o CRIS platform and national Aggregator o DMS Metrics: National R&D Indicators Management System (Eurostat) o Scientific Indicators: bibliometrics (Scopus and Web of Science) o Greek Researcher Registry o R&D Business Registry European o Past  PAERIP Inventory of Research Infrastructures  EuroRIs-Net+ Observatory  OpenAire  RICH o Current  RICH2020  MERIL2  PT-CRIS 13

14 ΕΚΤ Access to Knowledge EKT (Greece) GIVE CERIF Model | CERIF Services | CERIF XML | CERIF REST API | CERIF OAI | upgrades TAKE Contribution CSUC (Catalonia) GIVE CERIF validator | DSpaceCRIS early adaptor TAKE DSpace-CRIS | CERIF OAI FCT|FCCN (Portugal) GIVE PTCRISync: ORCID Synchronization Framework TAKE CERIF Model | CERIF Services | CERIF REST API | CERIF OAI | DSpaceCRIS South European Link for Research Information Management CINECA (Italy) GIVE DSpace-CRIS | ORCID HUB | upgrades | roadmap TAKE ORCID Synchronization Framework | CERIF REST API | CERIF OAI

15 ΕΚΤ Access to Knowledge Usage examples (1/4) Goal: Check out which and how many entities are served by EuroCRIS CERIF-CRIS Reference Implementation (CC-REFIM) Query: http://cc-refim.ekt.gr/cerif-rest-refim/entitieshttp://cc-refim.ekt.gr/cerif-rest-refim/entities 15

16 ΕΚΤ Access to Knowledge Usage examples (2/4) Goal: Get list of organisations (a list of actionable urls) Query: http://cc-refim.ekt.gr/cerif-rest-refim/orgunitshttp://cc-refim.ekt.gr/cerif-rest-refim/orgunits 16

17 ΕΚΤ Access to Knowledge Usage examples (3/4) Goal: Get list of organisations (just multilingual information) Query: http://cc-refim.ekt.gr/cerif-rest- refim/orgunits?identifiersOnly=false&fedIds=false&classifications=false&links=false http://cc-refim.ekt.gr/cerif-rest- refim/orgunits?identifiersOnly=false&fedIds=false&classifications=false&links=false 17

18 ΕΚΤ Access to Knowledge Usage examples (4/4) Goal: Get specific organisation and its projects only Query: http://cc-refim.ekt.gr/cerif-rest-refim/orgunits/d6bb7c60-92bd-4b56-882e- bff8726ceb45?links=projects&linkedObjects=true http://cc-refim.ekt.gr/cerif-rest-refim/orgunits/d6bb7c60-92bd-4b56-882e- bff8726ceb45?links=projects&linkedObjects=true 18

19 ΕΚΤ Access to Knowledge 19 Thank you for your attention Q&A More info: o karaiskos AT ekt.gr http://metrics.ekt.gr/en/cris http://github.com/EKT/CERIF-Tools http://eurocris.org/cerif-api-v10 http://cc-refim.ekt.gr/cerif-rest-refim/

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