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[{"key": "dc.contributor.advisor", "value": "M\u00f6nk\u00f6l\u00e4 Sanna", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Kauppinen, Janne", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2016-06-13T12:20:57Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2016-06-13T12:20:57Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2016", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/50283", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Ohjelmoinnissa on usein tilanteita, joissa kaksi toisiinsa yhteyksiss\u00e4 olevaa rakennetta on sidoksissa toisiinsa niin, ett\u00e4 muutokset yhteen rakenteeseen heijastuvat asianmukaisesti my\u00f6s toiseen rakenteeseen. T\u00e4ss\u00e4 tutkielmassa k\u00e4sitell\u00e4\u00e4n datamallien v\u00e4list\u00e4 transformointia kaksisuuntaisten transformaatioiden n\u00e4k\u00f6kulmasta. Tekstiss\u00e4 k\u00e4yd\u00e4\u00e4n l\u00e4pi erityisen tarkasti er\u00e4s kaksisuuntainen transformaatio, nimelt\u00e4\u00e4n linssit, ja tutkitaan linssien rakenteita ja ominaisuuksia. Linssien yhteydess\u00e4 k\u00e4yd\u00e4\u00e4n l\u00e4pi alunperin relaatiotietokannoista tullut termi n\u00e4kym\u00e4np\u00e4ivitysongelma, joka on yleistett\u00e4viss\u00e4 datamallien v\u00e4lisiin transformaatioihin. Linssit ovat viel\u00e4 t\u00e4ll\u00e4 hetkell\u00e4 melko harvinaisia ohjelmoinnissa, mutta nyky\u00e4\u00e4n on olemassa ohjelmointikieli\u00e4, jotka perustuvat kokonaan linsseihin. Lis\u00e4ksi Haskelissa on tarjolla laaja linssikirjasto.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Computing is full of situations where two structures are connected in such a way that modification to one structure should be propagated to the other structure. This research is about bidirectional transformations between data structures. This text focuses on a special case of bidirectional transformations called lenses. The structure and the properties of lenses is studied in a general but still in a detailed way. The text also covers a term called view update problem which has been extensively studied in context of relational databases. The data transformations between two different structures is a generalization of the view update problem. Lenses are still rare in the context of programming but there are, however, programming languages which are based on lenses. Haskell has also a large implementation of lens library.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Janne Kauppinen (jaankaup) on 2016-06-13 12:20:57.240138. Form: Kandidaatintutkielma -lomake (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/kandin-tutkielma-lomake). JyX data: [jyx_publishing-allowed (fi) =True]", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija.group@korppi.jyu.fi) on 2016-06-13T12:20:57Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201606133050.pdf: 533855 bytes, checksum: c0f28248fe3a30fa3b6adb0cc3de06d5 (MD5)\nlicense.html: 4769 bytes, checksum: d2340c2512fefae3a1c7597cc3686175 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2016-06-13T12:20:57Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201606133050.pdf: 533855 bytes, checksum: c0f28248fe3a30fa3b6adb0cc3de06d5 (MD5)\nlicense.html: 4769 bytes, checksum: d2340c2512fefae3a1c7597cc3686175 (MD5)\n Previous issue date: 2016", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "20", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "linssit", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "kaksisuuntainen transformaatio", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "n\u00e4kym\u00e4np\u00e4ivitysongelma", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Haskell", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Linssit ohjelmoinnissa", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "bachelor thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-201606133050", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Kandidaatintutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Bachelor's thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Informaatioteknologian tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Information Technology", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Informaatioteknologia", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Information Technology", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Tietotekniikka", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Mathematical Information Technology", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.date.updated", "value": "2016-06-13T12:20:58Z", "language": null, "element": "date", "qualifier": "updated", "schema": "dc"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_7a1f", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": "fi", "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "bachelorThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}]
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