opengeospatial / opengeospatial/ogcapi-processes

Ad-hoc CWL workflows not applicable

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Description

Using CWL for describing workflows allows more flexibility that then Part 3 Nested Processes approach (https://github.com/opengeospatial/ogcapi-processes/issues/445).

Part 3 mentions a "Requirement for CWL ad-hoc workflow definition". However, that makes no sense, since "ad-hoc" implies submitting the execution values directly, whereas CWL is a Workflow Definition, similarly to Process Description. CWL are not convenient with injected values. They instead rely on a separate "execution/job" document, similar to the OAP's Execution Request.

How to provide both of these documents simultaneously needs to be addressed to make CWL definitions actually usable.

More details here:

Comment with Possible Workarounds:

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reading the Part 3 Nested Processes section and its requirement for CWL ad-hoc workflow definition. Review the linked Weaver issue and workaround discussion; the work is done when the specification clearly defines how a CWL workflow definition and its execution/job document are supplied together.

Written by the indexing model from the issue text.

Assessment

Domain
api
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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