Playbook workflow builder: Interactive construction of bioinformatics workflows
Fig 4
The structure of the Persistent Process Resolution Graph (FPPRG) Database.
The FPPRG database stores the data that flows through workflows in four tables. The first table is a dependency graph of each constructed step of a workflow. The second table stores the sequential order of a workflow. The third table is a Result record, and the 4th table is a Data record.