I propose to divide your workflow in modules and represent the active state for each module.
A module is a subset of your main workflow. For example it could be divided by tasks, person, roles, department, etc. This will greatly simplify the representation of the workflow. Let's says someone is responsible for data entry at many critical moments. We can group all his tasks in one module (or sub-workflow) containing the same activities, inputs, outputs and conditions. Modules could be inter-dependants and related.
A state is where we are located in a module. In simple workflows there is only one active task. In real life we are multi-threaded! So maybe in one module many states could be active at the same time. The state also includes active inputs, outputs and memory bits.
An input is something required to perform an activity for evaluation a boolean condition. It could be a document, a piece of data, a signal...
An output is something resulting from a task: an information, a document, a signal...
Enough definitions?
Then simply convert your workflow into a LADDER LOGIC and you have your states!
See Ladder Logic definition on Wikipedia
You display only active states:
- Active task(s) for the module
- Inputs required / inputs confirmed
- Output required / output realized
- Conditions to continue
Seems abstract?
Here is a small example...
Janet enters data in the system. She manages the green tasks of the diagram. We focus only on her work, not other tasks. She knows how to do 16 tasks in the workflow. We are waiting the following actions from her to continue, and her Intranet dashboard says:
Priority 1: You must send a PO to order enough pencils for the next month based on the sales report.
- Task: Send a purchase order
- Inputs: Forecast report from the marketing department
- Outputs: PO, vendor, item, quantity
- Condition for completion: PO sent and order confirmation received from supplier
Priority 2: You must enter into the financial system the number of erasers rejected by production
- Task: Data entry
- Inputs: Reject count from production
- Outputs: Number of rejects
- Condition for completion: data entered and confirmed
We do a lot of troubleshooting on automated production systems having hundreds of thousands ladder steps (the workflow is too complex to be represented in a whole). When the system is blocked we look at each module and determine what inputs are missing to activation task completion.
Good luck!