1. PC/4 Manfred Thaller PLANETS TB meeting, DenHaag, Sept 29th. '06

2. PC/4 * * as seen from Cologne in the context of PC/2, PC/4 and PP/5 or: The XCEL / XCDL concept.

3. Interoperability Framework Existing Service New Service Technical communication (phone) Semantic communication (language)

4. Interoperability Framework Existing Service New Service Technical communication (phone) Semantic communication (language)

5. Manfred Thaller PLANETS PA/4-PC/4, Den Haag, Sept. 29 th '06

6. Manfred Thaller PLANETS PA/4-PC/4, Den Haag, Sept. 29 th

10. Building block I A language, which allows a program to read "any file specification" based on ==> "eXtensible Characterisation Extraction Language" Formulate the humanly readable specifications of TIFF, RTF, WAV …in a language, which a general purpose program can read. General enough that any existing format specification can be expressed in it. (LATeX, MAX, VRML …)

11. Manfred Thaller PLANETS PA/4-PC/4, Den Haag, Sept. 29 th Building block I - Warning After the alphabet had been designed...

12. Manfred Thaller PLANETS PA/4-PC/4, Den Haag, Sept. 29 th Building block I - Warning After the alphabet had been designed...... somebody had still to write all those books.

13. Manfred Thaller PLANETS PA/4-PC/4, Den Haag, Sept. 29 th Building block II A language, which allows a program to describe "any file content" using a ==> "eXtensible Characterisation Definition Language" Formulate the content of any file in an abstract language, which captures the complete information contained in it. General enough that any existing content can be expressed in it.

14. Manfred Thaller PLANETS PA/4-PC/4, Den Haag, Sept. 29 th Building block III A program, which is able to interpret a format description in XCEL, and, using that, extracts from any file of that format a XCDL description of its content. Production level quality. Indicative performance: <= 1 second / file.

15. Manfred Thaller PLANETS PA/4-PC/4, Den Haag, Sept. 29 th Building block IV A program, which takes two XCDL descriptions and delivers a statement about the similarity of the information described.

16. Manfred Thaller PLANETS PA/4-PC/4, Den Haag, Sept. 29 th Relationship to DOW PC/2 defines the languages. (Starting: month 1 – [ finished month 18 ]. ) Deliverable: End month 5. Reuses PRONOM / DROID. PC/4 implements the extraction mechanism (Starting: month 1, ups, 4 – [ finished month 18 ]. ) Reuses any existing (useful) tools. PP/5 implements comparison mechanism and metrics of similarity of "information". (Starting: month 15.)

17. Thanks Manfred Thaller PLANETS PA/4-PC/4, Den Haag, Sept. 29 th