On paper the process is simple, linear, and known. From supply chain and inventory to finance, compliance, and product design, every department has its ways of working.
Systems hold the data
Plate Data, process modelling and value
Date 2026-10-03
Licence Rextuvia
Rextuvia finds the lost value
Field
On paper the process is simple, linear, and known. From supply chain and inventory to finance, compliance, and product design, every department has its ways of working.
Basis A simple purchase-to-pay procedure
Source Rextuvia’s drawing
Reality normally looks different. Deviations, workarounds, rework, approvals going back and forth, bottlenecks and delays are some of the many defects found in a process.
Basis The same procedure as systems record it; a schematic, no single company’s log
Source Rextuvia’s drawing
Systems keep a record of every action: which process, what activity and when it happened.
Process mining is a scientific field that began in the late 90s and is used by many global corporations to X-ray their processes, using their systems’ data and nothing else.
Findings uncover defects that are traceable down to the record, so an organization can see where and how exactly it leaks value and money.
Basis Begun 1999; first journal paper 2004
Source W. M. P. van der Aalst et al., IEEE Transactions on Knowledge and Data Engineering, 2004
Processminingwithouttheplatform
Method
One process at one site. The way in, sized to run alongside the client’s own work.
Purchase-to-pay and order-to-cash, across every location on one enterprise resource planning (ERP) instance.
The same two processes, run again after a Project, so every change is measured against the first result.
Any process a system records can be mined: purchase-to-pay (P2P), order-to-cash (O2C), record-to-report (RTR), enterprise asset management (EAM) and more. Rextuvia delivers the pair that touches every supplier, every customer and every invoice: purchase-to-pay and order-to-cash.
The data already exists. Every step leaves a row holding three things: which case it belongs to, what activity happened, and when. Fields such as user, amount, supplier or customer add the detail behind each finding.
SAP, NetSuite, JD Edwards and Microsoft Dynamics are the systems Rextuvia works with first. Every installation stores its record differently, so each engagement starts by modelling the client’s own tables into one event log, whatever the system.
The order is the method. The pre-audit comes first because data extraction is where engagements fail, and nothing is signed until the data has been seen. The report comes last and stands on its own: no live connection to the client's systems, nothing to maintain after delivery.
A free check of the client's tables before any commitment: which systems, which fields, how far back, how clean.
The raw tables of the enterprise resource planning (ERP) system become one log: each order, each step, each timestamp.
The process is drawn from the log, then held against the reference model the client confirms, so every deviation is named.
Each finding carries one of four grades: Hard data, Modelled, Judgement, Assumed. The reader knows how far to trust each number.
A static deliverable: the map, the defects with their counts, and the trace behind each one. Recommendations are quantified, not implemented.
Everythinghasprovenance
Provenance
Every figure on this site and in every deliverable carries three things: an evidence grade, a named source and the basis it was computed on. A number that cannot say where it came from does not appear. The same rule applies to the firm.
Estevão Castro, Founder. TK: two sentences on the record behind the firm, written from the model CV when it exists.
Delivered from a Portugal cost base to clients in the United States. Open-source process mining tooling, used internally; no platform is sold or hosted.
TK: the list of every source cited on this page, in the apparatus form of the prospectus.
Pre-audit
The pre-audit is free and comes before anything is signed. Rextuvia reviews which systems hold the process, which tables and fields exist, how far back they go and how clean they are, and returns a written view of what a Pilot could and could not find.
What Rextuvia asks for
Read access or an extract of the purchasing tables for one site, under a non-disclosure agreement signed before any data moves. The list of tables is TK and will come from the extraction plan.