Comparison
DecisionOS vs LeanIX
LeanIX gives you a structured view of your current technology portfolio: applications, services, SaaS, dependencies. DecisionOS gives you a structured way to decide what to add, replace or retire. Many enterprise architecture programmes use LeanIX for the map and DecisionOS for the decisions that reshape the map.
TL;DR
LeanIX tracks your portfolio. DecisionOS decides what changes.
Side-by-side comparison
| Criterion | DecisionOS | LeanIX |
|---|---|---|
| Object | A decision | A portfolio |
| Scope | Per-decision end-to-end | Enterprise-wide, ongoing |
| Users | CISO, CIO, buying committee | Enterprise architects, SaaS management |
| Output | Decision memo | Portfolio views, dependency maps |
Choose DecisionOS when
- ✓You are adding, replacing or retiring something and need a defensible decision.
- ✓You need structured stakeholder briefs and criteria weights.
Stick with LeanIX when
- ·You need to map the current enterprise architecture.
- ·You manage an ongoing SaaS portfolio.
How DecisionOS is different
LeanIX answers "what do we have?". DecisionOS answers "what should we change, and why?". The LeanIX record after a decision matches the DecisionOS memo that drove it.
Questions we get about this
Can LeanIX and DecisionOS be used together?
Yes. DecisionOS decisions feed LeanIX portfolio updates with a traceable reason-of-record.
Ist DecisionOS eine EAM-Alternative?
Nein. LeanIX (jetzt SAP) ist Enterprise Architecture Management mit Application-Portfolio, Capability-Mapping und Tech-Radar. DecisionOS ist Entscheidungs-Infrastruktur für die einzelne Investitions- oder Migrations-Entscheidung im Architekturkontext. Viele Architekten verwenden LeanIX für die Bestandsaufnahme und DecisionOS für die strukturierte Entscheidung über Veränderung.
Where is DecisionOS hosted?
The application, its databases, the self-hosted analytics and all backups run on dedicated servers in Germany operated by a European provider, under an Art. 28 GDPR data processing agreement. There is no hyperscaler, no US fallback and no cross-border replication of stored data. Two steps do leave the EU: traffic reaches you through a content delivery provider that terminates TLS in front of the origin, and the AI features are provided from the USA. That second one carries case content: decision memos, document extraction and vendor research all work on what you entered, so where you describe your decision in your own words, that text is part of the request. These transfers rest on EU standard contractual clauses, and every sub-processor is listed by name, purpose and location at nexalign.io/hosting. Whether a given workload can accept them is a question we would rather you decide with the facts than discover later. The self-hosted analytics is cookie-free.
How do I evaluate DecisionOS for my next decision?
Book a 30-minute demo at nexalign.io/book. During the demo the team walks a real decision end-to-end using a scenario close to yours (EDR, IAM, sovereign cloud, ERP, whichever fits).
Related decision guides
- InfrastructureHow to make a sovereign cloud migration decision
- InfrastructureHow to decide on IT outsourcing, a structured framework
- SecurityHow to choose an EDR or XDR platform in 2026
- SecurityHow to choose an IAM, IGA and PAM stack
- ComplianceHow to reach NIS2 readiness as a mid-market or enterprise operator
Related comparisons
- DecisionOS vs Excel and slide decksSpreadsheets work until the second stakeholder shows up.
- DecisionOS vs RFP toolsRFP tools automate Q&A. DecisionOS runs the decision.
- DecisionOS vs procurement suitesProcurement suites execute the purchase. DecisionOS makes the decision.
- DecisionOS vs NotionNotion stores knowledge. DecisionOS produces decisions.
- DecisionOS vs ConfluenceConfluence is a wiki. DecisionOS is a decision record.
Relevant industries
- TelekommunikationTelko entscheidet unter NIS2 + TKG §165 + BSI-Sicherheitskatalog gleichzeitig. Ein Memo, das alle Prüfer akzeptieren.
- Manufacturing & IndustrialManufacturing is a NIS2 important entity. OT security and supply-chain diligence are mandatory. The decision memo is the audit standard.
- Pharma & Life SciencesPharma IT is regulated IT. Validation (CSV/CSA) and audit trail are not optional. The decision memo is the mandatory front-end documentation.
- Automotive & SuppliersAutomotive = TISAX + UNECE R155/R156 + ISO 21434 + NIS2. The decision memo is the only format that maps all four in parallel.
- Chemicals & Process IndustryChemicals is a NIS2 important entity with physical major-accident risk. IT-OT convergence is the core strategic question.