Cognos Lasttests
2026-04-16 · CUG Anwendertagung · Hamburg (with Robert Dostal)
Load and performance testing for Cognos Analytics. Cognos User Group e.V. at TK Hamburg.
Conferences
Talks, user-group sessions, and earlier net culture — from FidoNet and Bremen’s early ISP years to Cognos User Group DACH and IBM TechXchange. Newest first.
Talks and user groups
Superschnelle Dashboards
2024-11-21 · CUG Cognos Anwendertagung · Frankfurt
Fast Cognos dashboards at the DACH Cognos User Group conference with IBM.
Fast open-source dashboards
2024-09-23 · AIDA User Group @ IBM iX · Berlin
How to build fast dashboards for IBM Cognos, SAP BI, Microsoft Power BI, ServiceNow, and more with open source. GitHub examples and a setup path under 15 minutes.
jMeter and COMETA performance
2024-05 · CUG Anwendertagung · Wiesbaden
Monitor and improve Cognos performance with jMeter and COMETA at the Cognos User Group DACH conference.
Cognos REST API super power
2024-03-14 · AI on Pi Day · AIDA User Group
Interactive session on fast Cognos dashboards with JavaScript and Angular. Sub-three-second visualization, multi-device layout, open examples to fork.
Cognos Analytics REST API webinar
2024-02 · IBM Community · Online
IBM Community webinar: build striking, responsive dashboards on Cognos data with open-source examples.
IT Boutique Consulting — Cognos API
2024-01-23 · IBM TechXchange · Barcelona
Sessions on pushing the IBM Cognos API in real projects. Also listed via Cognos User Group DACH for members going to Barcelona.
IBM Testing and IBM Analytics
2023-09 · IBM TechXchange · Las Vegas
Sessions on IBM testing and analytics. Also published AIDA Forecaster guidance for the conference track list.
Cometa open-source testing
2023 · AgilityToday
Introduced cometa-rocks: open-source no-code / low-code test automation for visual and functional regression, cloud or on-prem.
COCOMA for Cognos Analytics
2022-07 · Cognos User Group e.V. · Online / DACH
Presented COCOMA as an open alternative among Cognos tooling, next to CogBox, in the CUG session on tools for Cognos Analytics.
Angular dashboards on Cognos data
2019-02 · IBM Think · San Francisco
Authentication, interactive report runs, saved outputs, and dashboards with first paint under 0.5s and full interaction under 2s.
Cognos API dashboards
2018 · Miami
Early public presentation of Angular + Cognos data retrieval for fast operational dashboards (same line of work as Think 2019).
Early net
Internationale Stadt Bremen / ISB
1993–2001 · is-bremen.de · isb.net · Bremen
Co-founded Internet Service und Beratung GmbH — among the first full-service internet providers in Bremen. Technical and financial lead for Internationale Stadt Bremen (www.is-bremen.de / isb.net). Public debate on open nets and provider responsibility after a 1998 guestbook case (taz Bremen; also covered in Spiegel).
European Media Art Festival
1990s · emaf.de · Osnabrück
Early internet and media-art collaboration around the European Media Art Festival — bridging Bremen ISP infrastructure with the festival’s online presence in the first web decade.
Over-the-Edge BBS / FidoNet
1992–1994 · FidoNet · Bremen
Sysop of Over_the_Edge (later two lines: Line_I / Line_II). Listed in the public FidoNet nodelist as Ralf_Roeber, Bremen — among others 2:240/325, 2:241/2015, 2:241/2032, then 2:2426/3020–3021. No public echomail message archives found; the nodelist is the durable public record.
Prix Ars Electronica / Cyberarts 97
1997 · Honorary mention · Cyberarts book
Prix Ars Electronica is one of the longest-running international competitions for digital art and cyberculture — a Linz benchmark for work that treated the net as culture, not only as infrastructure.
Programming for the interactive web project *Energized Gaming Culture* (Mark von Rahden) — PHP chat and mSQL magazine (ISB). Honorary mention in the .net category, 1997. Named in the printed catalog *Cyberarts: International Compendium Prix Ars Electronica* (Springer, Edition 97; eds. Leopoldseder / Schöpf).