Can I attach multiple workflows to a content type?

Workbench Moderation is used to define states and state changes to create workflows. You can create multiple workflows with some states shared or all states different.

Workbench Access can add complicated permissions. Workbench Access adds "section" as an identifier and you could create a workflow per section.

is there a solution for multiple workflow in workbench?

@SocialNicheGuru - did you find the solution?

I've a similar scenario where I need two different departments from editorial team to review and approve content from one content type.

Ex: there is an article and there are bunch of images which gets uploaded with the article, one dept would only review images and other would do the article content.

The simplest Workflow approach would be to define the states:
draft
needs-article-check
needs-image-check
publish

The content would flow from the author to the content editor then to the image checker then to the publisher.

If you wanted something working in parallel, you could set some approval checkboxes, put the content into waiting-for-approval, notify all the approvers, and have one of the approvers move the content up to the next step when all the boxes are checked.

Rules can fire on content update. You could create a rule to check all the checkboxes then promote the content when everything is checked. You would have:
draft
waiting-for-checks
checked
published
Rules would move the item from waiting-for-checks to checked when the last checkbox it ticked. You would need a rule to alert someone if something remains in the waiting list too long.

thanks peterx for taking out your valuable time and responding here.

I need a parallel but independent workflow, in your reponse

If you wanted something working in parallel, you could set some approval checkboxes, put the content into waiting-for-approval, notify all the approvers, and have one of the approvers move the content up to the next step when all the boxes are checked.

This still sound sequential, I want two departments within editorial to review content and image at the same time and not wait for either dept to move the status up.

its like both parts of the node should have their own flow.
Content (Draft, Review In Progress, Approved, Published)
Images (Draft, Review In Progress, Approved, Published)

is there something like Field Collection or field groups which works with workbench?

hassanali20, are your images separate nodes? The publish step publishes a node. If your images are input through one of the media options, they are separate nodes that can be published. For other types of image entities you need to add the equivalent of the publish indicator used on nodes.

Workbench has Workbench media to integrate with the Media module. SocialNicheGuru mentioned the Workflow module Workflow field as another way to add a publish indicator for the images. You can also use fields and Rules.

You could mix two or three systems but it would be a mess. They would all want to switch on the publish button. Workflow looks like it would be the single solution for you.

Should the content be published when the content is approved but before any image is approved?
Can an image be published without the content being approved?

For most of the publishing systems I produced, the content is an article that mentioned the photographs which means the article does not make sense without the photographs. Everything in the article has to be approved before the article is published. For that reason, you want the parallel image approval finished before the final approval for the article.

If an image is independent of the article, it is usually uploaded as a media asset for selection by article authors and editors. Approval to publish is at the media upload point, not when the image is attached to an article.

Good luck. Let is know what works for you.