RISE versus On-Premise TCO.

Six outcomes from completed TCO models.

1. The 12-category TCO decomposition used in 80+ engagements. Subscription, infrastructure, BTP, integration, FUE conversion, run-and-maintain — and six more that SAP's own TCO model frequently omits.
2. Where the 5-year crossover actually sits. The breakeven points between RISE and on-premise across three workload profiles, and the assumption sensitivities that move them.
3. The indexation drag that compounds across years 3, 4, and 5. How SAP's standard 4–6% annual uplift reshapes a model that looks favourable at year-one.
4. The hyperscaler-hosted alternative, fully modelled. RISE-equivalent functionality run on AWS, Azure, or GCP — the licensing, the infrastructure, the operational team cost, and the comparison-grade economics.
5. The hidden operational cost line items in each model. Run-and-maintain, integration support, custom-code management, security and compliance — what each option actually requires, not what the sales pitch implies.
6. How to present the model to the executive committee. The four sensitivities that always come up, the answers, and the slide layout that frames the decision honestly.

Seven chapters. Forty-six pages.

Four audiences. One reference.