SMAD Portal vs 3SL Cradle
Long-standing systems engineering tool vs modern mission workspace
Defense and aerospace teams using 3SL Cradle for systems engineering and requirements traceability
- Your organization has decades of Cradle institutional knowledge and templates
- You need Cradle’s deep document publication and configuration management features
- You manage tens of thousands of requirements with complex baselining
- Your contract specifically references Cradle deliverables
- You are a small to mid-sized space program that cannot justify Cradle’s licensing
- You need engineering calculators, orbit analysis, and budgets in the same tool
- Phase gate review packages should generate themselves, not be hand-built
- You want the modern web UX your engineers are used to elsewhere
Feature Comparison
| Capability | SMAD Portal | 3SL Cradle |
|---|---|---|
| Requirements management | ✓ | ✓ |
| Requirements traceability (RTM) | ✓ | ✓ |
| Suspect link detection | ✓ | ✓ |
| Risk register + risk matrix | ✓ | Custom |
| Mass / power / link budgets | ✓ | — |
| Phase gate tracking | ✓ | Custom |
| Orbit analysis calculators | ✓ | — |
| Engineering calculators (50+) | ✓ | — |
| Document publication engine | PDF reports | ✓ |
| Air-gap deployment | ✓ | ✓ |
| SMAD methodology built in | ✓ | — |
| Setup time | 10 min | Weeks |
| Starting price | $29/mo | $$$ |
Switching from 3SL Cradle?
Export your Cradle project to CSV or XML using the built-in export tool
Import requirements via the SMAD Portal CSV importer — hierarchy and attributes are preserved
Re-create document templates as SMAD Portal phase gate review packages
Run both systems in parallel for one phase gate, then deprecate Cradle for new programs
Frequently Asked Questions
How does SMAD Portal compare to 3SL Cradle?
Cradle is a comprehensive, mature systems engineering tool with deep document publication and configuration management. SMAD Portal is a focused mission engineering workspace that prioritizes the workflows spacecraft programs run daily — requirements, traceability, budgets, risks, phase gates, and orbit analysis — with a much shorter ramp-up.
Can SMAD Portal handle the requirement volumes Cradle does?
Yes. SMAD Portal scales to tens of thousands of requirements per mission. Performance has been validated at 10k+ requirement loads in under one second.
What about formal document publication?
SMAD Portal generates phase gate review PDFs (PDR, CDR, TRR) covering requirements, risks, budgets, and verification status. For arbitrary custom document templates, Cradle’s document generation engine is more flexible.
Is SMAD Portal cheaper than Cradle?
Significantly. SMAD Portal starts at $29/month per user. Cradle uses a perpetual license + maintenance model that typically runs in the high four-figure to low five-figure range per seat for the first year.
Other Comparisons
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