Home page of Jan Flokstra

I work for the IS vakgroep as a software engineer. My task is to realize large experimental software systems. Projects I've worked on so far are:

PRISMA, a large parallel database machine. For this project I designed an XRA (relational algebra language) data structure and parser, a query optimizer and a Datalog like language called PRISMAlog. In the final stages of the project I helped optimizing the data managers and the result was for that moment one of the fastest database machines built.

OODM, the Object Oriented Data Models project. For this project I designed a typechecker for the language TM. In a later stage of the project after ideas about implementing the language had ripened I designed an interpreter for the language and implemented it. This interpreter is called the TAM (Tm Abstract Machine).

IMPRESS, For this project I created a graphical Database Design Tool for the TM language. This (case)tool is used to specify databases in TM in a user friendly graphical way. Even expressions are specified graphically.

MAGNUM. I'm am currently working in a project to translate an NF2 kind of language to a BAT (binary) algebra. This project is my first JAVA experience.

IMPACT, this project has not been started yet, but it is a research project on high performance parallel transaction models.

A Software Artist ?

Interests

• Travelling and hiking. More information can be found on my Travel Page.
• Motorcycles. After I got my motor drivers license I bought a very old Yamaha XT600Z Teneree. After a year I decided I wanted something more thrustworthy and I bought a new Honda NX650 Dominator all road motorcycle. I already made my first long trip with it to the last Formula I races of 1997 in Jerez. I drove 6000 km in 2 weeks and I thought the NX650 was very well suited for this kind of travelling.
  I now am the proud owner of a Honda African Twin. With this I made a three week journey to the Alps and Corsica in 2000.
• Wine, I'm lucky to live in an old house with a cellar which I'm using as a wine cellar. A list of my wines for WWW is under construction. My favorite wines are 'big' wines like Cote de Rotie, Pauillac, St. Estephe and the Australian wines which are still reasonably priced here.