Frank's Blog


Last week I attended the 6th International Conference on Business Process Management (BPM2008). In contrast to most other conferences I visited in the past, I didn't had a talk of my own. Instead, I reviewed a bunch of papers and acted as a session chair. The session chair was quite funny, since one of the presenters was unable to finish his speech in time. Indeed, right after he told me that he needed more time, he switched to a slide titled something like "violating time constraints".

The conference itself was very interesting and I met a bunch of old colleagues and yet another one of new contacts. What I found a bit disappointing was the very slow progress in the area of semantics. Nevertheless, other areas like mining or process analysis have moved ahead.

Another interesting news is the fact the you can by unlocked iPhones in Italy for as low as 500 Euro (8GB). This is especially interesting since I've read today that Amazon plans to sell unlocked iPhones in Germany for 750 Euro. My suggestion: Invest the 250 savings in a nice trip (incl. flight and hotel) to Milano. But be warned that a beer costs about 8 Euro in downtown!

Last but not least I'm giving you some impressions:

The Banca Popolare di Milano welcomed us right at the airport.

The building at the Politecnico di Milano where the conference took place.

The crowd of attendees during a break.

Prof. Weske from the HPI, Potsdam presented the web-based modeling tool Oryx.

Paul Harmon, Executive Editor and Founder of gave an interesting keynote.

Milano has a large castle in the center of the city.

A downtown view.

Torben, a colleague of mine, Jan, and myself in the underground.

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Together with my family and good friends, I spent this year's summer holidays in Sweden. Somewhere here.

Our house.

Our boat.

Our rainbow?

A lake.

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Yeah, it's summer time! While you might think this website is dead and buried, some things are going on behind the scenes... the meantime, I'm going to give you a short wrap-up of the missing months.

For the first time in my life, the price of diesel went higher than benzine.

This is quite weird, since the German tax system has a much higher charge on benzine than diesel. Still, today, I would be happy if I could fill my car for the shown price.

Knut has grown up in the meantime.

The Malibu Cocktail Bar has been extended towards the beach.

(I love this place. Indeed, there's another picture taken there in this blog).

inubit moved to a new location (and my desk has been relocated, too).

Now there's also enough room for you. If you're a student and interested in BPM research topics (and their practical implementations and evaluations), don't miss this ad. If not, we have also a bunch of other interesting jobs to offer.

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Still alive 

Yes, it's time for me to give a ping that I'm still alive. In addition to my job transition to inubit AG, I also moved to a new apartment. To get a bit out of the theoretical thoughts, I assembled the IKEA kitchen together with my brother---85 flat boxes and more than 600 kilogram in weight. That took quite some time and should be a good excuse.

But now I'm back into business---semantics this time. While semantic (web) has been claimed to be the next big thing(tm) for some time now, the excitement has settled. While some might claim that it's dead at all, I think some important preconditions have matured in the meantime. Most of it can be found at the Semantic Web Activity Homepage of the W3C.

In particular, the Resource Description Framework (RDF) and its variants such as RDFS (schema) and RDFA (annotations), SPARQL as a query language for RDF, and the Web Ontology Language (OWL) provide a number of interesting technologies to really integrate semantics into products. I'm not talking about the blue from the sky, but rather about simple, pragmatic things like data mappings or business rules that are connected to business processes and organigrams via ontologies.

An important step is the integration of an RDF database into Oracle 11g. It's not that I personally like to spend sooo much money, but it means that there's a professional, performance optimized RDF store available.

Last but not least, I'm still working on bringing you an updated introduction to the Business Process Modeling Notation (BPMN). It will be based on a chapter of a technical report that I wrote some years ago, but covers BPMN 1.1. In the meantime you can take a look at the old report here.
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Today is time for statistics. Rule number one: don't trust any that you didn't manipulated yourself. Rule number two: show only what you want to show.

Here is the web browser and OS statistics for February 2008 of my whole website. The left hand diagram shows you the different browsers. It's quite interesting to see that 38 percent of my visitors are Internet Explorer users. This is noteable, since only the blog has a stylesheet for IE, all other pages are rendered in plain (but readable) text. Safari is not refined further by my web statistics (provided by 1und1).

The right hand diagram shows the distribution of different operating systems, where others include different versions of Windows and SunOS. Windows XP and Vista power the computers of 59 percent of my visitors. Not surprisingly, almost a quarter uses MacOS (again not further refined).

I removed the Google, Yahoo, etc. bots. And yes, I let you guess the number of visitors :-)
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