1. Copyright 2006 by Satoru Takagi all rights reserved 1 Panel Session 2: How Japanese Industry Works with Web Standards Satoru Takagi YRP Ubiquitous Networking Laboratory

2. Copyright 2006 by Satoru Takagi all rights reserved 2 Self-introduction I have been researching and developing distributed Location-Based Services and Mapping Systems for WWW at KDDI since 1995. KDDI:Telecommunication Career of Japan Its principles: Based on map visualization (rather than geo-spatial semantics) Visual inter-operation (the “Hyper-layering” pat. US:6107961, JP:3503397 ) Target is commodity rather than mission critical. Target is the infrastructure rather than differentiated service.

3. Copyright 2006 by Satoru Takagi all rights reserved 3 Standardization at W3C SVG1.1 Top 2 of SVG1.1 Mobile Usage Scenarios : 2001 –Location-Based Services. –Mapping and Positioning. SVG1.1 Recommendation : 2003 –Royalty-free use of "Hyper-Layering" was guaranteed as long as it used with SVG for it was adopted by SVG1.1 specification. BUT! At present, distributed web mapping platform as the social infrastructure that the author imagined has not been completed. Only proprietary Location Based Services begins to be acknowledged by the public. 2003 : LBS for cellular phone with GPS (ezNaviWalk) 2005 : Google Maps for PC Effectiveness of open and inter-operable LBS is still to be demonstrated and hard to inform to the public.

4. Copyright 2006 by Satoru Takagi all rights reserved 4 Findings from the experience Proprietary Location-Based Services technology overcame the chasm in 2003. But, it takes longer to construct the standardized platform compared with the construction of proprietary services. That is, chasm period of the public infrastructure is very long. A persistent long-term activity is necessary for constructing the standardized information platform.

5. Copyright 2006 by Satoru Takagi all rights reserved 5 Importance of Human-understandability It is related to the easiness of the acquisition of information literacy (accessibility in the wide sense). Information which only the machine can understand is convenient for the ICT vendor to dominate market. That is, it promotes lock-in situation for ICT vendors. (Lock-in by ICT knowledge) XML Schema, *ML and WS* boom in 2000 might have been based on this. And, did it succeed? No! Web2.0 might be starting afresh the Semantic web, but it requires human understandable web. It is establishing a minimum vocabulary for the metadata of human understandable contents. (DC, RSS..) However, the current Web2.0 campaign by ICT vendor resembles closely the situation in 2000.

6. Copyright 2006 by Satoru Takagi all rights reserved 6 Wave of WWW with cycle of ten years They try to “Lock-In" by using the expectation by the boom of WWW. When the expectation exceeds the limit of an actual interoperation ability, WWW becomes the concentrated and tight coupling system, and the charm of WWW declines. WWW disappoints people and the development stalls. Expectation Reality Web1.0 Web2.0 Web3.0(tentative) Web4.0(tentative) Machine-understandability to interoperate RSS Web1.5 HTML 20052010?2015?20001995 Age now here? XML WS* *ML desirable for infrastructure?

7. Copyright 2006 by Satoru Takagi all rights reserved 7 Findings from the experience It is the necessary condition of WWW to secure human understandability. It resembles human's "Language" problem that Mr.Murata pointed out, too. And, the language dependency of the map is low