, working! document! with! a! list! of! 29! potential! properties.! The! document!was!circulated!internally!among!the!SUB!and!FHP!colleagues!involved!in!HaS.! The!feedback!included!a!ranking!of!the!properties,!because!originally,!in!the!final!version! the!number!of!properties!should,!if!possible,!be!limited!to!around!15!in!order!to!keep!the! effort!for!implementing!it!manageable.!Together!with!the!incorporation!of!feedback!on! other!aspects,!this!resulted!in!a!first!draft.!The!limit!of!15!could!not!entirely!be!kept,!but! mandatory!and!nonAmandatory!properties!were!introduced!to!set!the!threshold!not!too! high!for!potential!users!wishing!to!implement!it.! This! first! draft! was! presented! to! and! discussed! with! the! HaS! consortium! at! the! Project! Board! Meeting! in! Ghent! on! 12A13! October! 2016.! The! overall! feedback! was! very! positive.! Some! minor! adaptations! were! proposed! and! comments! made.! For! example,! we! first! envisioned!VIAF 31 !to!be!used!as!controlled!vocabulary!for!the!properties! " Provider " !and! " Creator, 2016.
, 31 !https://viaf.org/! 32 !This!idea!was!considered,!but!eventually!dropped!due!to!the!fact!that!indicating!a!concrete!person!always! bears!the!risk!that!the!information!will!become!invalid!sooner!or!later,!because!people!on!projects!etc.!can! quickly!change.!Also,!one!mandatory!property!is!URL,!i.e.!the!website,!via!which!contact!information!
, Horizon!2020!?!Individual!Implementation!and!operation!of!ESFRI!projects! Grant!Agreement!no, p.675570
, be!found!in!annex!1.!Following!this,!the!implementation!of! the! AP! within! TERESAH! could! be! completed! and! tests! with! RDFa! implemented! by! partners!in!their!websites!can!begin.!As!a!few!of!those!elements!are!bound!to!controlledA lists,! we! created! a! simple! list! of! the! terms! that! can! be! used
, will!go!through!the!22!terms!of!the!AP,!of!which!only!four! are!mandatory.!More!information!can!be!found!in!annex!1.! ! Name:!mandatory,!describes!the!name!of!the!tool/service! Type:!mandatory,!controlledBlist,!explains!if!it!is!a!tool!or!a!service! Description:!mandatory,!provides!a!description!of!the!tool/service! Url:!mandatory
, !controlledBlist,!type!of!service!being!offered!(HaS!WP5!inkind!classes
, ! controlledBlist,! describes! what! the! tools! and! services! can! be! used! for!
, !controlledBlist,!The!object!upon!which!the!action!is!carried!out!(TaDiRAH! Research!Object
, or!service! Date!modified:!date!of!last!modification!of!the!tool!or!service! Provider:!provider!or!operator!of!the!tool!or!service! Creator:!main!creator/developer!of!the!tool!or!service! Contributor:!secondary!contributor!to!the!development!of!the!tool!or!service! License:!a!license!document!applying!to!the!tool!or!service! Operating!System:!operating!systems!supported! Memory!Requirements:!minimum!memory!requirements! Processor!Requirements
, ! describes! the! browser! requirements,! for! example! HTML5! support! Storage!Requirements:!describes!the!storage!(free!space)!necessary!to!install!and!run!the! application! D8
, Horizon!2020!?!Individual!Implementation!and!operation!of!ESFRI!projects! Grant!Agreement!no
, ! a! decentralised! approach! due! to! different! reasons.! In! addition! to! the! effort! of! setting! them! up! and! maintaining! them! technically,! centralised! registries! require! much! more! financial! and! human! resources! to! keep! their! content! up! to! date.! HaS! explored! a! distributed! approach! where! metadata! about! tools! and! services! are! embedded! directly! into! the! websites! of! their! originators! or! projects! using! them.! Nevertheless! it! is! still! possible! to! manually! enter! tool! descriptions! into! the! registry!demonstrator!TERESAH.! ! This!is!realised!with!the!help!of!the!W3C!standard!RDFa.!RDFa!is!a!wellAknown!Resource! Description!Framework!in!the!domain!of!the!Semantic!Web!and!allows!to!add!structured! and! descriptive! metadata! information! to! (X)HTML! in! an! easy! way.! Using! RDFa! has! the! benefit! to! augment! visual! information! on! the! web! with! machineAreadable! hints! by! offering! a! set! of! markup! attributes. 33 !In! comparison! to! microformats 34 ,! which! is! also! an! approach! to! semantic! markup! using! (X)HTML,! RDFa! is! much! more! expressive.! It! is! not! limited! to! certain! topics! and! allows! description! of! nearly! all! domains,! if! adequate! ontologies! are! used.! All! properties! used! are! unambiguously! identified! by! a! URL.The! barrier!for!the!implementation!in!websites!is!quite!low,!as!no!further!interface!is!needed! for!the!provision!of!descriptive!metadata!and!the!syntax!is!quite!simple
, ! we! could! also! approach! partners! as! well! as! related! websites! within! the!fields!of!Digital!Humanities!in!order!to!propose!to!them!the!implementation!of!our!AP! to!describe!their!own!tools!and!services.!The!description!of!those!would!then!be!made!in! RDFa 35 !within! their! already! existing! websites,! RDFa! information! would! not! break! the! frontend!of!their!pages.!When!this!would!be!done,!TERESAH!could!then!be!modified!in! order! to! " harvest
, Horizon!2020!?!Individual!Implementation!and!operation!of!ESFRI!projects! Grant!Agreement!no
, are!used!by!the!one(s)!harvesting!your!website,!that's!why!we!created!this!AP,!which!are! the! properties! that! can! be! set! in! HTML! in! order! to! have! descriptive! information! easily! readable!by!machines.!Firstly,!you!will!need!to!set!a!vocabulary!at!the!top!HTML!element! that!encapsulates!the!description!of!your!tool!or!service.!This!can!be!at!the!very!top!of!an! HTML!page!if!the!page!only!describes!one!tool!/!service!or!multiple!times!within!the!page.! Once!the!vocab!attribute!has!been!given,!it!would!need!to!be!given!a!type!attribute,!our! AP!is!set!on!a!type!of!SoftwareApplication!(http://schema, schema.org/"!typeof="SoftwareApplication">!
, for! this! tool! or! service.! All! the! descriptive! elements! you! wish! to! use! in! RDFa! will! come! from! the! AP,! for! example! you! wish! to! add! a! TaDiRAH! Research! Activities! item! like! " Publishing " 36 ,! you! can! do! so! by! a! property! " applicationCategory " ! around! your! " Publishing " !description:! <a!href="http://teresah.dariah.eu/tools/by%facet/application%category/publishing"! property="applicationCategory">Publishing</a>! ! Now,! by! reading! the! AP,! you! will! realize! that! in! order! to! include! a! TaDiRAH! Research! Activities!item,!you!will!need!to!use!http://schema.org/applicationCategory!and!since!we! are! already! in! the! vocabulary! of! http://schema.org,! a! simple! property! " applicationCategory " ! would! suffice! to! describe! that! element.! However,! would! you! choose!to!describe!the!type!of!the!item,!which!can!only!be!Tool!or!Service!(as!defined!by! NeMO!Instrument!class 37
, HaS!would!reuse!the!tool!TERESAH!created! by! another! european! project! (DASISH)! as! a! basis! for! the! demonstrator! needed! for! the! registry!of!tools!and!services.! However,!reusing!this!tool!also!means!redeveloping!it,!it!needs!to!be!reviewed!in!order! for!it!to!be!used!with!the!new!AP!as!well!as!extending!its!old!capabilities, 2017.