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?
Entirely in the EU (Hetzner, Nuremberg, Germany). No application data leaves the European Union. Analytics is self-hosted and cookie-free. A data processing agreement per Art. 28 GDPR is in place with the hosting provider.
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
Infrastructure
How to make a sovereign cloud migration decision
Infrastructure
How to decide on IT outsourcing, a structured framework
Security
How to choose an EDR or XDR platform in 2026
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How to choose an IAM, IGA and PAM stack
Compliance
How to reach NIS2 readiness as a mid-market or enterprise operator
Related comparisons
DecisionOS vs Excel and slide decks
Spreadsheets work until the second stakeholder shows up.
DecisionOS vs RFP tools
RFP tools automate Q&A. DecisionOS runs the decision.
DecisionOS vs procurement suites
Procurement suites execute the purchase. DecisionOS makes the decision.
DecisionOS vs Notion
Notion stores knowledge. DecisionOS produces decisions.
DecisionOS vs Confluence
Confluence is a wiki. DecisionOS is a decision record.
Relevant industries
Telekommunikation
Telko entscheidet unter NIS2 + TKG §165 + BSI-Sicherheitskatalog gleichzeitig. Ein Memo, das alle Prüfer akzeptieren.
Manufacturing & Industrial
Manufacturing is a NIS2 important entity. OT security and supply-chain diligence are mandatory. The decision memo is the audit standard.
Pharma & Life Sciences
Pharma IT is regulated IT. Validation (CSV/CSA) and audit trail are not optional. The decision memo is the mandatory front-end documentation.
Automotive & Suppliers
Automotive = TISAX + UNECE R155/R156 + ISO 21434 + NIS2. The decision memo is the only format that maps all four in parallel.
Chemicals & Process Industry
Chemicals is a NIS2 important entity with physical major-accident risk. IT-OT convergence is the core strategic question.