Fred van Engen's Home Page

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First Name: Fred
Middle Names: Wilhelmus Gerardus
Last Name: van Engen

Born in Amsterdam, The Netherlands at April 21, 1968

E-Mail at fengen@dds.nl

• SoftBlue
• Pascal Metrics
• Scanner for Postcode Disk
• FIDO Nodelist Converter
• Rebel to PGN database converter
• Scanner for Gouden Gids
• AM-WorkFlow/SQL
• DWF Viewer
• Persistency in Java

Available as LHA file with C, 680x0 and 8086 assembly source.

Metrics is a small project conducted for the Technical University of Delft. It calculates several software complexity metrics for Pascal source code, according to Halstead's measure for software complexity, McCabe's cyclomatic complexity and a simple lines of code metric.

Available as zipped lex, yacc, ast and C source and PostScript report.

PTT Postcode Disk contains all ZIP-codes for addresses in The Netherlands. It is maintained by PTT Post. A version is available on floppy disk for MS-DOS systems which uses a proprietary (unavailable) database format.

During this project I created an MS-DOS executable that converts the database to a text format while running the Postcode program with a simulated user. Sources for Borland C 3.0 are also available.

Sources for Borland C 3.0 and MS-DOS executable to convert a FIDO node-list to a dBase III file.

Rebel is a chess program by Ed Schröder which includes database functionality.

During this project I created a program to convert Rebel 6.0 .DAT databases to PGN. The results are available as zipped MS-DOS executable and as source for Borland C 3.0.

Gouden Gids are the yellow pages for companies in The Netherlands, maintained by ITT Gouden Gids. A version is available on floppy disk for MS-DOS systems which uses a proprietary (unavailable) database format.

During this project I created an MS-DOS executable that converts the database to a text format while running the Gouden Gids program with a simulated user. Sources for Borland C 3.0 are also available.

Graduation project at the Technical University of Delft, faculty of Technical Mathematics and Informatics, department of Technical Informatics, at the chair of Software Engineering, performed for Cyco Software Development. The project investigated the feasability of an SQL version of the AutoManager WorkFlow document management software.

Available are zipped PostScript versions of documents describing a relational model of AM-WorkFlow 3.2 data and an implementation of an SQL version of AM-WorkFlow 3.2. Also available is a zipped PowerPoint presentation of the project.

Whip! is a 2D vector file format with extension DWF defined by Autodesk. During this project a viewer was created for these files by hacking the file format which had at that time not been described by Autodesk yet.

Available are zipped versions of an MS-Windows executable and sources for Borland Delphi.

This project is a research into persistent versions of Java. It is available as zipped Microsoft Word document and as zipped PostScript document.