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Vihren Labs
Operator guides

The step-by-step versions.

How to run the cutover, the master-data audit, the EU regulatory registers — answered in operator depth, free. Each guide gives away the what and the why. The done-for-you template lives in the catalogue.

Programme Delivery & Enterprise IT PMO

The ERP modernisation business case — the honest case, build-vs-buy, and the cost of not acting

How to build an ERP / S/4HANA modernisation business case that survives the steering committee: the honest obligation-driven case (not the inspirational one), the five modernisation options each with its trap, the brownfield-vs-greenfield-vs-selective decision, a five-year TCO with the data-remediation line, the weighted decision scorecard, and the cost-of-not-acting frame anchored to the 2027 ECC maintenance deadline.

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Procurement & Vendor Management

IT vendor & SaaS TCO — the true three-year cost, not the invoice price

What an IT vendor / SaaS total-cost-of-ownership model must contain: the licence line, the hidden bolt-ons and admin FTE, the three-year cost with the renewal uplift modelled, and the renewal mechanics (notice period, auto-renewal trigger, list-vs-floor price, the vendor's fiscal-quarter close) that decide what you actually pay. From the distributor side of the table.

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Transformation & SSC/GBS

The SSC/GBS transition plan — FTE sizing, knowledge transfer, and the exit to BAU

What a shared-services, GBS or BPO transition plan must contain: the FTE sizing math (volume / productivity x ramp uplift), the four transition models, the four-stage knowledge transfer that advances on evidence, the governance and self-writing status, the hypercare-to-BAU exit criteria, and the retained organisation. From an operator who has run offshoring transitions, not pitched them.

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Career & Roles

The Job Decoder — 6 questions that tell you what a role actually is

Most job descriptions are written for the applicant-tracking filter, for HR and legal, and for the internal pay grade — not to tell you what the work is. The Job Decoder is the six-question method to understand any role in about a minute: what they do all day, what they're really measured on, who they work with, the number-one failure mode, the skills that actually matter, and how to break in. Written by an operator who has hired into and worked across enterprise-operations roles on both sides of the table.

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Programme Delivery & Enterprise IT PMO

The PMO status report that doesn't lie — defensible RAG, RAID, and gates

Most programme status reports are watermelons: green on the outside until they turn red overnight. A defensible PMO status has written RAG definitions everyone agrees on, a RAID log with owners not just entries, stage gates that are pre-agreed pass criteria instead of date theatre, and numbers that assemble from the trackers rather than being narrated. Written by an operator who has run transformation PMOs — here is how to make a status report nobody can argue with.

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Transformation & Shared Services

How to size an offshoring or SSC transition — the FTE math nobody teaches

Most transitions are sized with optimism, not arithmetic — and the new team is understaffed for its first six months, exactly when its reputation is set. The real method: Target FTE = annual volume ÷ productivity, then a ramp-inefficiency uplift you actually fund; choose the transition model deliberately; run knowledge transfer in four evidence-gated steps; budget the dual-running window; and declare done at BAU exit criteria, not the go-live date. Written by an operator who has run SSC and offshoring transitions.

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Transformation

Why transformations fail — the 7 failure modes and the operating spine that prevents them

Transformations almost never fail on the technology. They fail in seven predictable, organisational ways: no honest baseline, maturity scored to flatter, everything-is-Wave-1, strategic builds before quick wins, no operating model for the after, governance by status deck, and value asserted but never proven. The fix is an operating spine — assessment, capability maturity, roadmap, target operating model, governance, value. Written by an operator who has run transformation programmes.

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AI Adoption & Governance

Are you ready to deploy an AI agent? The 12-point operator readiness check

A free 12-point readiness check for deploying an AI agent on real enterprise data: the identity, completeness, consistency, governance and process questions to answer before go-live — because an agent amplifies whatever your data already is. From an operator who builds master-data and AI-readiness tooling.

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Regulatory & Compliance

The DORA Article 28 ICT register — what it must actually contain

What a DORA Register of Information has to capture under Article 28: every ICT third-party arrangement, which critical or important function each one supports, the criticality and sub-contracting chain, and the concentration-risk picture — not just a procurement list. An operator's view of the register supervisors actually open.

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Regulatory & Compliance

The EU AI Act deployer checklist — what an SME has to do before August 2026

A practical EU AI Act readiness checklist for deployers: build the AI system inventory, classify each system (prohibited, high-risk under Annex III, limited-risk, minimal), meet the Article 50 transparency obligations, cover the Article 26 deployer duties, and assemble the evidence — treated as a documentation exercise, not a legal one.

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Master Data Operations

The master data quality audit — the checks that actually matter

How to run a master data quality audit: the six dimensions worth scoring (completeness, validity, consistency, uniqueness, conformity, timeliness), how to score at field level, how to log and prioritise defects, and how to evidence the improvement over time — for the person accountable for the data, not the consultant reviewing it.

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SAP / ERP Operations

The S/4HANA cutover checklist — the run sheet that survives 3 a.m.

What an S/4HANA migration cutover checklist must contain: the readiness gates, the hour-by-hour run sheet, the master-data freeze, the data-validation checks (BP-MASS, MIGO, FBL3N), the pre-agreed rollback criteria, and the hypercare plan. From an operator who has watched cutovers fail at 4 a.m.

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Procurement & Vendor Management

The SaaS renewal negotiation checklist — terms that beat the discount

How to negotiate a SaaS or software renewal from the buyer's seat: find the notice period and start 90–120 days out, pull real usage, build the true 3-year TCO, read the vendor's leverage (quarter-end, deal registration, your renewal date in their CRM), establish a credible alternative, and counter the uplift with specifics. Written by someone who has run renewals from the vendor and distribution side.

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