Field notes on SAP, HPC, enterprise architecture and the occasional academic rant. Short reads, usually with code.
Everyone wants clean-core ABAP until it's Tuesday and the customer needs a field on MIGO yesterday. Here's a pragmatic framing — treat it as a contract between product, customer and consultant, not a binary state.
Read the full postA pragmatic framing for moving modification-heavy on-premise ABAP toward the clean-core ideal — with decision trees for real customers.
"Portable" doesn't mean "equally fast." Three patterns where SYCL kernels silently fall off the vectorization path, and how to instrument for them.
LeanIX is only as good as what you put in it. A template for capability maps that stay useful after the architect leaves the project.
Why you should start writing ABAP Unit tests today — and the three fixture patterns that turn "painful" into "routine."
Notes from going from Spring services to ABAP full-time. What transferred, what didn't, and what I'd do differently.
The things I now look for as a reviewer on HPC manuscripts: reproducibility, hardware transparency, and the quiet art of "compared against."
On designing EA artefacts for the engineers who have to live with them. A short argument against one-more-PowerPoint.
Five small CDS patterns — annotations, extensions, analytical projections — that keep paying off across projects.
A look back at the ambassador years — beyond the badge, what sticks is a particular respect for systems that have to stay up.
A short essay on what weekend fishing on the Bosphorus taught me about debugging complex enterprise systems. Patience, mostly.
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