DFAST stands for Deformation and Failure Analysis of Slopes and Terraces. Originally developed by the US Bureau of Reclamation (USBR) and later adapted by private geotechnical firms, DFAST 2.0 bridges the gap between simple infinite slope models and complex finite element software like PLAXIS or FLAC.
The "2.0" moniker marked a departure from legacy code, introducing:
Version 7 (the "7" in your search) is the culmination of a three-year development cycle focusing on stochastic analysis, transient seepage coupling, and computational speed. dfast 2.0 7
| Feature | DFAST 2.0 7 | Slide (Rocscience) | Slope/W (GeoStudio) | |---------|-------------|--------------------|----------------------| | Probabilistic analysis | Built-in Monte Carlo + Latin Hypercube | Separate package (Slide3) | Limited to 5,000 runs | | Transient seepage coupling | Yes (Richards’ equation) | No (requires Seep/W) | Yes (tight integration) | | Newmark displacement | Advanced (1,400 record library) | Basic | Basic | | Price (annual commercial) | $2,200 | $4,500 | $3,800 |
For budget-conscious firms needing rigorous seismic and probabilistic analysis, dfast 2.0 7 is the clear winner. DFAST stands for Deformation and Failure Analysis of
Running dfast 2.0 7 with optimal parameters ensures the best results. Here is an advanced command line:
dfast \
--genome assembly.fasta \
--out dfast_result \
--prodigal-model single \ # For complete genomes; use 'meta' for metagenomes
--species "Escherichia coli" \
--strain "MG1655" \
--plasmid-ref \ # NEW in v2.0.7 - enhances plasmid CDS detection
--rRNA-mode sensitive \
--threads 8
While DFAST 2.0 simplifies the cycle, it remains heavily criticized for the opacity of the Federal Reserve's supervisory models. Banks often describe the process as a "black box," where they cannot precisely ascertain why they failed or why their buffer was set at a specific level. The 2.0 framework's reliance on "exploratory scenarios" adds to this uncertainty, as the results are qualitative rather than quantitative. Version 7 (the "7" in your search) is
Under the legacy framework (DFAST 1.0), banks with $100 billion to $250 billion in assets underwent a less rigorous version of stress testing compared to larger SIFIs. The 2024 updates (often referred to collectively as the "Basel III Endgame" proposal and the concurrent stress testing reforms) sought to streamline this.
DFAST 2.0 introduces a unified logic:
docker pull dfast/dfast:2.0.7
docker run --rm -v $(pwd):/work dfast/dfast:2.0.7 dfast --genome /work/my_genome.fasta --out /work/annotation