1. 25.04.2001 Slide 1 Wolfram Höpken RMSIG Reference Model Special Interest Group Wolfram Höpken IFITT RMSIG

2. 25.04.2001 Slide 2 Wolfram Höpken RMSIG Reference Model Special Interest Group Content Motivation Objective Architecture of the reference model Building concrete models Interoperability Advantages Process of the IFITT RMSIG

3. 25.04.2001 Slide 3 Wolfram Höpken RMSIG Reference Model Special Interest Group Motivation drawbacks of past standardization initiatives –lack of flexibility and extendibility fix standards are hard to maintain no possibility for suppliers to differentiate their offer drawbacks of XML-based standardization –XML-based specifications stick to a physical level –different XML-based standards will evolve  standardization on an abstract, conceptual level –focusing on semantic aspects independent of the physical representation –enabling interoperability between different physical representations

4. 25.04.2001 Slide 4 Wolfram Höpken RMSIG Reference Model Special Interest Group Objective harmonizing electronic tourism markets –flexibility and extendibility –interoperability independent of the physical representation framework for modeling electronic tourism markets –uniform language with standardized building blocks as vocabulary for describing electronic tourism markets –conceptual, abstract modeling of tourism markets, independent of their physical representation semantic aspects instead of physical details derivation of different physical models (e.g. XML models)

5. 25.04.2001 Slide 5 Wolfram Höpken RMSIG Reference Model Special Interest Group Modeling levels UML model XML model Distributed object model Conceptual level Physical level

6. 25.04.2001 Slide 6 Wolfram Höpken RMSIG Reference Model Special Interest Group Modeling language tourism specific modeling language based on the UML –extends the UML by domain specific concepts and mechanisms composition mechanism market interface descriptions –provides building blocks as specific modeling elements –enables the flexible description of specific models

7. 25.04.2001 Slide 7 Wolfram Höpken RMSIG Reference Model Special Interest Group Building blocks building blocks as common modeling components for reuse building blocks are provided on different levels of granularity –elementary building blocks (date, location,...) –tourism services (flight, hotel,...) –process building blocks (searching, booking,...)

8. 25.04.2001 Slide 8 Wolfram Höpken RMSIG Reference Model Special Interest Group Building blocks (2) Process layer Entity layer Base layer Name Category Room Hotel Time Route Class Fligh t Name Address Age Customer Criteria Customer ResultList Searchin g Service Customer Date Booking StartLocatio n EndLocation Route Date Time FacilitiesLocation Address Name

9. 25.04.2001 Slide 9 Wolfram Höpken RMSIG Reference Model Special Interest Group Architecture of the reference model

10. 25.04.2001 Slide 10 Wolfram Höpken RMSIG Reference Model Special Interest Group Building concrete models first step constructing a specific model on a conceptual level, containing all specific concepts and semantic aspects second step deriving one or several specific physical models from the conceptual model (e.g. XML representations)

11. 25.04.2001 Slide 11 Wolfram Höpken RMSIG Reference Model Special Interest Group Building concrete models (2) Specific conceptual model Reference model Name Category Room Hotel CureServices Name Category Room CureHotel derive Category Room Time MoonFlight compose MealPlan Time Route Class compose XYFlight Time Class Room Name Route Category CureServices MealPlan

12. 25.04.2001 Slide 12 Wolfram Höpken RMSIG Reference Model Special Interest Group Building concrete models (3) Specific conceptual model CureServices Name Category Room CureHotel Category Room Time MoonFlight MealPlan Time Route Class XYFlight Specific XML model

13. 25.04.2001 Slide 13 Wolfram Höpken RMSIG Reference Model Special Interest Group Interoperability

14. 25.04.2001 Slide 14 Wolfram Höpken RMSIG Reference Model Special Interest Group Advantages flexibility and adaptability for suppliers flexibility for change low entrance barriers to electronic markets for suppliers (SMEs) separation of semantic aspects and technical aspects interoperability on and between all possible communication levels

15. 25.04.2001 Slide 15 Wolfram Höpken RMSIG Reference Model Special Interest Group Process of the IFITT RMSIG activities executed within the IFITT RMSIG –commitment of methodology –specification of electronic tourism markets –domain analysis general survey for electronic tourism markets specific surveys for tourism services –Tourtags.org results (available under www.rmsig.de) –white paper –reference model version 0.9 –data dictionary

16. 25.04.2001 Slide 16 Wolfram Höpken RMSIG Reference Model Special Interest Group Process of the IFITT RMSIG (2) next activities –reference model version 1.0 –review activities outlook –tourism repository providing common building blocks enabling interactive maintenance and enlargement –prototypical applications of the reference model