In an assemble-to-order (ATO) manufacturing environment, the master production schedule (MPS) typically focuses on components and subassemblies. Here's the explanation:
* ATO Environment: In an ATO system, products are assembled only after an order is received. The final products are built using standard components and subassemblies that are stocked in advance.
* Master Production Schedule (MPS):
* Focus on Components and Subassemblies: The MPS in an ATO environment is driven by the need to ensure that all necessary components and subassemblies are available when customer orders are placed.
* Inventory Management: By scheduling the production of components and subassemblies, the company can manage its inventory levels effectively and ensure quick assembly of final products once orders are received.
* Efficiency and Responsiveness:
* Lead Time Reduction: By having components and subassemblies ready, the company can significantly reduce the lead time for fulfilling customer orders.
* Flexibility: This approach allows for greater flexibility in responding to variations in customer demand without the need for maintaining high levels of finished goods inventory.
* Process Flow: The MPS will detail the production schedule for components and subassemblies, ensuring that these parts are manufactured and available to meet the assembly requirements dictated by
* customer orders.
References
* Vollmann, T. E., Berry, W. L., Whybark, D. C., & Jacobs, F. R. (2005). Manufacturing Planning and Control Systems for Supply Chain Management.
* Heizer, J., Render, B., & Munson, C. (2017). Operations Management: Sustainability and Supply Chain Management.

When making a make-or-buy decision, several factors must be considered beyond costs and proprietary knowledge. The option to "make" implies manufacturing the product in-house, while "buy" means outsourcing the production. Key considerations include:
* Costs: Both fixed and variable costs associated with in-house production versus purchasing from a supplier.
* Proprietary Knowledge: The importance of keeping certain knowledge and technologies within the company for competitive advantage.
* Available Capacity: Whether the company has the necessary production capacity to manufacture the product without affecting other operations. This involves assessing current production capabilities and future scalability.
* Quality Control: The ability to maintain the desired level of quality in-house versus the quality assurance capabilities of potential suppliers.
* Flexibility and Lead Time: The ability to respond quickly to market changes and customer demands.
* Strategic Importance: How critical the component or product is to the company's core business and strategic goals.
Among the given options, "available capacity" is the most relevant factor, as it directly influences the decision of whether to allocate internal resources to production or to outsource.
References:
* Chopra, S., & Meindl, P. (2016). Supply Chain Management: Strategy, Planning, and Operation.
Pearson.
* Slack, N., & Lewis, M. (2017). Operations Strategy. Pearson.