Replacing workflow modules

I think for simple transitions and a small number of states and roles, workflow works quite well, so I would recommend against switching to rules just for the fun of it.

In complex systems workflow can be a bit hard to manage and this is where rules can make life a lot easier. To manage state use a CCK field, Rules will allow you to test these values in your conditions. I also recommend you create a new rule set for each of the important events (on content viewed, on content saved, etc) for any content types that take part in the workflow. This will help keep the administration of the rules managable, as I've found the administration side of things to be a bit of a weakness in Rules.

You could also use Taxonomy to capture state if you aren't already deploying CCK. I've just found that CCK plays nicely with a whole range of other modules.

I didn't think that “workflow-NG is suppsoed to be successor of workflow”, so this post is interesting! I want to build a publish workflow based on taxonomy: if a node is in “being reviewed” state, not all editors have access on it, just only editors having the same term as this node.

Do you think rules or workflow is the better way to go? In any case, it's no doubt that I'll have to write customized code.