
Maximizing Efficiency with VSDia: A Case Study in Prototype Development
In today's competitive industrial landscape, the ability to streamline processes and reduce lead times is paramount. At Lean Insights Hub, we are dedicated to bringing you practical strategies and insights to help you achieve these goals. In this article, we delve into a case study that illustrates the power of the Value Stream Design for Indirect Areas (VSDia) methodology in optimizing prototype development processes. This case study was developed during my time in college, where I had the opportunity to apply theoretical knowledge in a real-world setting.
Introduction to VSDia
Value Stream Design for Indirect Areas (VSDia) is an advanced process mapping tool tailored for non-manufacturing environments, where traditional Value Stream Mapping (VSM) falls short. VSDia effectively represents information processing steps and complex routes, making it ideal for environments like offices, service areas, and prototype development.
The Challenge
Our case study focuses on a company specializing in the production of wiring systems for heavy machinery. The company faced a significant challenge: long lead times in their prototype development process, which hindered their market competitiveness. They needed a solution to streamline their process, reduce lead times, and improve productivity.
Methodology
A team of Industrial Engineering and Management students from the University of Minho undertook the project, applying the VSDia methodology in four key phases:
Preparation: Setting up the necessary conditions, including a dedicated room and materials for process mapping. Stakeholders were briefed on the objectives and encouraged to provide honest and transparent task descriptions.
Value Flow Analysis: Using VSDia, the team mapped the current process, identifying all tasks and their value to the customer. Tasks were categorized into value-added (green), necessary but non-value-added (yellow), and non-value-added (red). This visual representation highlighted inefficiencies and problem areas.
Design of the Future State: The team designed an improved process by applying lean principles:
- 100% Value-Added Activities: Eliminating tasks that do not add value.
- Continuous Information Flow: Reducing interruptions and waiting times.
- Parallel Processing: Conducting tasks without precedence in parallel to reduce lead times.
- Levelling Cadence and Workload: Standardizing tasks and planning for demand fluctuations.
- Customer Orientation: Aligning tasks with customer needs and timing.
- Ideal Capacity: Adjusting capacity based on demand.
- Minimized Connections: Reducing the number of entities involved in the process to streamline information transfer.
- Elimination of Rework: Ensuring information is complete and accurate to avoid rework.
- Customer-Shaped Information: Presenting information in its final form to avoid intermediate steps.
- Elimination of Waiting: Avoiding delays due to approvals and other hold-ups.
Implementation: Developing standards for the new process and training stakeholders to ensure compliance. Continuous monitoring through checklists ensured the improvements were sustained.

Results
The application of VSDia yielded impressive results. The lead time for prototype development was reduced from 27 days to 17 days. Additionally, the process improvements led to significant productivity gains. Employees gained a deeper understanding of the entire process, enhancing their ability to identify and address inefficiencies proactively.
Conclusion
This case study underscores the effectiveness of the VSDia methodology in non-manufacturing environments. By visually mapping processes and engaging stakeholders in identifying and eliminating waste, companies can achieve substantial improvements in efficiency and competitiveness.
At Lean Insights Hub, we believe in the power of continuous improvement and lean methodologies to drive innovation and operational excellence. Stay tuned for more insights and case studies that inspire and inform your journey towards operational excellence.