Sven Liesecke

Title: Sven Liesecke and In-Memory Variant Configuration Evaluation.

Introduction

Sven Liesecke is an inventor based in Mannheim, Germany, associated with SAP SE. His patent work addresses the evaluation of variant configurations using in-memory technology.

Latest Patents

Liesecke is credited with 1 patent: “Evaluation of Variant Configuration Using In-Memory Technology.” The invention describes a system, method, and computer program product for evaluating whether a concrete configuration satisfies a selection condition.

The approach transforms Boolean selection expressions into disjunctive normal form in memory, joins configuration values with the condition, and compares the values. It aggregates comparison results using minimum functions within AND-groups and maximum functions across OR-groups, then outputs the result for the concrete configuration. The patent also describes SQL Script implementations, an alternative based on conjunctive normal form, and extensions for calculations, string operations, multi-valued literals, in-lists, and variant tables. It further addresses parallel processing and evaluating branches in order of complexity.

Career Highlights

Liesecke’s documented patent contribution focuses on applying in-memory processing to variant configuration evaluation. The described techniques organize condition evaluation into structured operations that can support complex configuration data.

Collaborations

The provided information names Petra Meyer and Nadine Gaertner as Liesecke’s coworkers. It does not specify their roles in the patent or the invention.

Conclusion

Sven Liesecke’s patent presents an in-memory approach to evaluating variant configuration conditions, with methods for handling complex expressions and supporting efficient processing.