Keeping the flow going: Data-flow oriented workflow systems
summary
Claims a data‑flow workflow where the flow is a purely functional program that guarantees consistency while letting users perform tasks in any order as dependencies allow. Implements this with Arrow combinators and higher‑order reactive ideas, a Haskell prototype called the HTF library served via happstack, and a company variant in Delphi. Demo shows dynamic task graphs, parallel execution of independent tasks, and a running prototype, with persistence and collaborative semantics left as future extensions.
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chapters (13)
- 0:00Intro
- 0:40Whats the problem
- 2:17The workflow
- 3:09Programming
- 4:42Data collection
- 5:42Dynamic workflow
- 8:24Four variants of tasks
- 9:35Task a computation
- 11:07Errors
- 13:46Tasks
- 15:12Workflows
- 16:33HTF
- 20:11Questions
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