Bachelor practical course linked data preliminary meeting
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Transcript of Bachelor practical course linked data preliminary meeting
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Technische Universität München
Bachelor Practical Course Linked DataWinter Term 2014/2015
Preliminary meeting - 25.6.2014 Claudius Hauptmann
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 2
Agenda
1. Organisational Issues 2. Linked Data 3. Continuous Delivery
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Technische Universität München
Organisational Issues
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 4
Bachelor Practical Course - Module Description
• Intended Learning Outcomes: “Participants are able to design and implement small software systems in a team. They know how to apply engineering methods and models and can judge the risks and typical problems encountered in software projects.”
• Content: “Participants exercise systematic software engineering for a small system in small teams with a precise task description with tight time constraints (design, implementation, test). Intermediate results of the team work have to be presented. Design, project plans and implementation have to be documented.”
• Work load: 300 total hours (90 contact hours, 21o self-study hours)
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 5
Topics
• Linked Data technologies und applications (RDF, SPARQL, LOD) • Developing web applications using Java • Agile project management • Configuration management • Continuous delivery • Test automation
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 6
Schedule
• 06.10. Setup SDE (please bring your notebooks!) • 13.10. Task 1: Linked Data and SPARQL • 20.10. Task 2: Using Linked Data in Java-Projects • 27.10. Task 3: Developing Web Applications using Java • 03.11. Sprint 1 • 10.11. Sprint 2 • 17.11. Sprint 3 • 24.11. Sprint 4 • …
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 7
Schedule
• … • 01.12. Sprint 5 • 08.12. Sprint 6 • 15.12. Sprint 7 • (22.12. Sprint 8) • (12.01. Sprint 9) • 19.01. Presentation !!
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 8
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 9
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 10
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Technische Universität München
Linked Data
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 12
Motivation
• Publish datasets over the web • Query datasets effectively by applications • Graph-based data model • Extension, integration, inference and uniform querying
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 13
Queries
• “Retrieve a performance of the Beethoven violin concerto by a Chinese orchestra”
• “Retrieve a photo of the conductor of this performance” • “List male British rock musicians married to Scandinavians”
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 14
Background standards
• HyperText Transfer Protocol (HTTP) • Uniform Resource Identifier (URI) • eXtensible Markup Language (XML) • Resource Description Framework (RDF) • RDF Schema (RDFS) • Web Ontology Language (OWL) • SPARQL Protocol and RDF Query Language (SPARQL)
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 15
Uniform Resource Identifier (URI)
• A compact sequence of characters that identifies an abstract or physical resource
• Data from different data sources has to be linked to indicate synonyms
http://rdf.freebase.com/ns/en.ludwig_van_beethoven!
http://dbpedia.org/resource/Ludwig_van_Beethoven!
http://musicbrainz.org/artist/1f9df192-a621-4f54-8850-2c5373b7eac9#_!
http://data.nytimes.com/N30866506154608358173
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 16
Resource Description Framework (RDF)
• Statements are represented as triples of the form subject-predicate-object
<http://musicbrainz.org/artist/b10bbbfc-cf9e-42e0-be17-e2c3e1d2600d>!
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>!
<http://musicontology.com/specification/#term-MusicGroup>.
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 17
SPARQL Protocol and RDF Query Language
• Language for formulating queries over RDF data • It is the Semantic Web's counterpart to SQL
PREFIX dc: <http://purl.org/dc/elements/1.1/> PREFIX foaf: <http://xmlns.com/foaf/0.1/> PREFIX dbpedia: <http://dbpedia.org/resource/> PREFIX music-ont: <http://purl.org/ontology/mo/> SELECT ?album_name ?track_title WHERE { dbpedia:The_Beatles foaf:made ?album . ?album dc:title ?album_name . ?album music-ont:track ?track . ?track dc:title ?track_title }
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 18
Sites using Linked Data
• http://data.nytimes.com/schools/schools.html • http://www.bbc.co.uk/music • http://linkedgeodata.org/ • http://www.data.gov/ • http://data.gov.uk/
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 19
References
• EUCLID Project:http://www.euclid-project.eu/modules/chapter1
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Technische Universität München
Continuous Delivery
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 21
Continuous Delivery - Motivation
• Goal: Deliver software as quickly as possible • A lot of software development methodologies focus on requirement
engineering and impact on development effort • Bottleneck: build, deploy, test and release process
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 22
Continuous Delivery - Principles
• Create a Repeatable, Reliable Process for Releasing Software • Automate Almost Everything • Keep Everything in Version Control • If It Hurts, Do It More Frequently, and Bring the Pain Forward • Build Quality In • Done Means Released • Everybody is Responsible for the Delivery Process • Continuous Improvement
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 23
Configuration Management - Definition
Configuration Management refers to the process by which all artefacts relevant to your project, and the relationships between them, are stored, retrieved and uniquely identified, and modified.
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 24
Configuration Management - Key Questions
• Can I exactly reproduce any of my environments and their configuration?
• Can I easily make an incremental change and deploy to any, and all, of my environments?
• Can I easily see each change that occurred to an environment and trace it back to see exactly what the change was and who made it?
• Can I satisfy all of the compliance regulations that I am subject to? • Does every member of the team easily get the information needed?
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 25
Continuous Integration - Essential Practices
• Don’t Check in on a Broken Build • Always Run all Commit Tests locally before Checking Committing • Wait for Commit Tests to Pass before Moving On • Never Go Home on a Broken Build • Always be Prepared to Revert to a Previous Revision • Time-Box Fixing before Reverting • Don’t Comment Out Failing Tests • Take Responsibility for all Breakages That Result from Your Changes • Test-Driven Development
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Technische Universität München
Bachelor Practical Course Linked Data - Preliminary meeting 26
References