MESA Part 4 – Laying the Foundation for Change
This posting continues our discussion of how to apply Business Process Management methods to implementing MES.
In previous discussions we talked about the materials we needed to prepare for a series of Consensus Workshops. What are Consensus Workshops? That requires a little background.
What is a Consensus Workshop?
For the selected functional areas (see below) subject matter experts from each of the affected departments or functional areas are assembled to; review the current As-Is state and shortfalls, generate a To-Be state process flow, determine how the process flow addresses the shortfalls and the company objectives and strategy, develop a list of the gaps between the To-Be state and those shortfalls left unaddressed, and address the change management issues related to the future state processes.
What are the topics for the Workshops?
The full list of topics available for holding Workshops follows the ISA-95 Model:
- Production Control
- Quality Assurance
- Maintenance Management
- Material and Energy Control
- Product Inventory Control
- Production Scheduling
- Procurement
- R&D
- Order Processing
- Cost Accounting
- Product Shipping
Some notes on this list: You can usually combine Material and Energy Control with Production Inventory Control under a single topic Inventory Management (as it is in the MOM). This allows you to address raw materials, WIP, and finished goods discussions in a single workshop. If Energy Control is a significant topic, create a separate workshop for it. Don’t discount the Cost Accounting and Order Processing discussions, they may be short but they can be significant. For example, determining how product unit costs are evaluated can affect critical KPI’s and incentives.
How do we select the topics?
As you prepare the As-Is state process flows and gather shortfalls for the way you currently do business, a picture emerges of areas that need attention or present opportunities. You could hold a workshop for each area of the ISA-95 model, one for all the activities in Production Control, one for all the activities in Quality Management, one for all the activities in Procurement, etc. Do you need to hold a workshop for every area? That depends on how comprehensively you intend to apply an MES system. Another way to look at it is to identify those areas with the most problems and the most opportunity for payback. It’s a trade-off, expediency and short-term payback versus comprehensiveness and longer term payback.
A few of the advantages of selecting a limited number of areas are;
- It is usually easier to determine the true ROI for change.
- It’s easier for participants to understand the value of the change.
- It requires fewer resources to implement.
Remember it’s a trade-off. There are also advantages to the comprehensive approach;
- Having a full picture of the numerous and various interfaces between systems and implementing them one time is much more efficient,
- Even if you don’t implement all of the future state or To-Be processes you will have a long-term plan to work towards,
- It’s easier to implement full-scale change while you have your foot on the gas.
Next Time: Creating the Framework for Change

