The table compare SoS with several popular bioinformatics workflow systems including Nextflow, Snakemake, Bpipe, CWL, and Galaxy, in three broad aspects: 1) basic features (syntax, file format, user interface, etc), 2) workflow features (workflow specification, dependency handling, execution and monitoring, etc), and built-in support for external tools and services (container support, HPC systems, distributed systems and cloud support). It is a snapshot of an interactive table online at https://vatlab.github.io/blog/post/comparison where comments and potential contributions from the community can be continuously incorporated through github issues or pull requests. (XLSX)