In the mrp-module, each product can be related to a single bill-of-materials (bom) describing the sub-components of that product.
Now, I want to work in the opposite direction, so to speak: For each product (or alternatively for the bom related to the product) I want to display a list of all boms, in which this product/bom figures as a sub-component. In other words, given a product, I want to answer the question: In which (other) products does this product appear as a component?
How is this best achieved?