MASTERARBEIT Titel der Masterarbeit Metadata Management Services for Spatial Data Infrastructure - A Case Study of a User-centric Implementation Strategy for an Academic Institution Verfasser Mag. Peter Lanz angestrebter akademischer Grad Master of Science (MSc) Wien, 2011 Studienkennzahl lt. Studienblatt: A 066 856 Studienrichtung lt. Studienblatt : Master Kartographie und Geoinformation Betreuerin: Prof. Dr. Tobia Lakes 2 Metadata Management Services for Spatial Data Infrastructure Metadata Management Services for Spatial Data Infrastructure 3 CONTENTS CONTENTS...................................................................................................................................... 3 LIST OF FIGURES ............................................................................................................................. 6 LIST OF TABLES ............................................................................................................................... 7 GLOSSARY ...................................................................................................................................... 8 ZUSAMMENFASSUNG....................................................................................................................10 ABSTRACT .....................................................................................................................................12 ACKNOWLEDGEMENT ...................................................................................................................14 1. INTRODUCTION .....................................................................................................................15 1.1. MOTIVATION AND THE UNDERLYING IDEA .........................................................................15 1.2. RESEARCH OBJECTIVES ......................................................................................................17 1.3. STRUCTURE .......................................................................................................................18 2. STATE OF PLAY ......................................................................................................................20 2.1. SPATIAL DATA INFRASTRUCTURES .....................................................................................20 2.2. SDI COMPONENTS .............................................................................................................21 2.3. SDI CLASSIFICATION ...........................................................................................................22 2.3.1. FIRST AND SECOND GENERATION SDI ............................................................................23 2.3.2. EVOLUTION AND UNDERSTANDING OF SDI ONTOLOGY..................................................25 2.3.3. THIRD GENERATION SDI .................................................................................................27 2.4. SDI DEVELOPMENT FRAMEWORK ......................................................................................29 2.5. METADATA ........................................................................................................................30 2.5.1. METADATA STANDARDS ................................................................................................31 2.6. METADATA CATALOGUES ..................................................................................................33 2.7. GEOPORTALS .....................................................................................................................36 2.8. SERVICE ORIENTED ARCHITECTURE (SOA) ..........................................................................39 2.8.1. WEB SERVICE ARCHITECTURES .......................................................................................41 2.9. OGC SPECIFICATIONS .........................................................................................................42 2.9.1. CATALOGUE SERVICE FOR WEB 2.0.2 .............................................................................42 2.10. DESIGN AND USABILITY OF COMPUTER USER INTERFACES .............................................43 2.10.1. SEARCH INTERFACES ......................................................................................................44 2.10.2. METADATA QUERY .........................................................................................................46 2.10.2.1. SEMANTICS AND GEOGRAPHICAL INFORMATION .......................................................47 2.10.3. METADATA EXPLORATION & VISUALIZATION .................................................................48 4 Metadata Management Services for Spatial Data Infrastructure 3. CASE STUDY: METADATA MANAGEMENT SYSTEM FOR ASDI IN AN ACADEMIC INSTITUTION. 51 3.1. SDIlight FOR ACADEMIC INSTITUTIONS ................................................................................ 51 3.2. EXISTING SDI NODE ........................................................................................................... 53 3.2.1. TECHNICAL FRAMEWORK .............................................................................................. 53 3.2.2. INSTITUTIONAL AND LEGAL FRAMEWORK ..................................................................... 54 3.2.3. TECHNICAL ARCHITECTURE ............................................................................................ 55 3.2.4. DEPARTMENT‘S DATABASES AND RESOURCES ............................................................... 57 3.3. GEONETWORK CATALOGUE APPLICATION ......................................................................... 59 3.3.1. TECHNICAL ASPECTS ...................................................................................................... 61 3.3.2. INTERNATIONAL STANDARDS ........................................................................................ 63 3.3.3. HARVESTING IN A SHARED ENVIRONMENT .................................................................... 64 4. METHODS & WORKFLOW ...................................................................................................... 66 4.1. IMPLEMENTATION CONCEPT ............................................................................................. 66 4.1.1. JOINT APPLICATION DEVELOPMENT .............................................................................. 67 4.1.2. RAPID PROTOTYPING ..................................................................................................... 70 4.2. WORK PROCESS................................................................................................................. 71 4.2.1. ASSESSMENT OF USER REQUIREMENTS ......................................................................... 72 4.2.2. SOFTWARE EVALUATION ............................................................................................... 73 4.2.3. SOFTWARE IMPLEMENTATION PROCESS ....................................................................... 74 4.2.3.1. NEW METADATA STANDARD SET ............................................................................... 75 4.2.4. PROTOTYPE CREATION .................................................................................................. 77 4.2.5. USER EVALUATION AND FEEDBACK ............................................................................... 79 4.2.6. INTERFACE DESIGN ........................................................................................................ 80 5. RESULTS ................................................................................................................................ 82 5.1. USER REQUIREMENT ASSESSMENT .................................................................................... 82 5.2. SOFTWARE EVALUATION ................................................................................................... 84 5.2.1. METADATA CATALOGUE ANALYSIS ................................................................................ 84 5.2.2. COMPARISON OF METADATA MANAGEMENT SYSTEMS ................................................ 86 5.2.3. GEONETWORK AS NEW METADATA MANAGEMENT ...................................................... 89 5.3. GEONETWORK AS NEW METADATA MANAGEMENT SYSTEM ............................................ 90 5.3.1. NEW METADATA STANDARD SET ................................................................................... 91 5.3.2. GEOPORTAL DESIGN AND INTERFACE ............................................................................ 95 6. DISCUSSION ........................................................................................................................ 100 6.1. DISCUSSION OF RESEARCH OBJECTIVES ........................................................................... 102 6.2. OUTLOOK ........................................................................................................................ 104 Metadata Management Services for Spatial Data Infrastructure 5 7. SOURCES .............................................................................................................................105 ANNEX A: SDI Stakeholder & Expert Questionnaire......................................................................111 ANNEX B: Export Meeting 20.5. INFO ..........................................................................................112 ANNEX C: Expert Meeting 20.5. Report ........................................................................................115 ANNEX D: Resource Specific Metadata Standard Sets ..................................................................118