This video provides an overview of the purposes and use cases for product definitions, as well as how to create and access them.

Each product definition is linked to a specific inventor based model. Which is the part or assembly file that is open and active at the time the product definition is created. A product definition contains the information necessary to publish a product model represented by an inventor project dataset to the cloud. On the Autodesk platform.

Once published, the product can be accessed to configure and generate variants.

Along with their various output types, either from within Revit or using the Informed Design WebApp.

The information contained within the product definition includes references to the associated Inventor data set. The input parameters used to define product variance. Any rules needed to constrain variant generation according to what can be manufactured and options that define the output types available, such as Revit families, native models, drawings, bill of material, step, SAT, and other outputs.

Product definition information is stored in a specific file with the name mid product definitions .mpd. This file is automatically created by the Informed Design add in. When a product definition is created, and is stored in the same folder location as the base model file it references.

Do not move, delete, edit the contents of the MPD file manually.

As doing so could result in the loss or corruption of the product definition information.

A single .mpd file is created at each folder of the inventor project that contains a base model that a definition is linked to.

Please note that you can have multiple product definitions per base model, and thus multiple product definitions are contained within a single .mpd file for one or more base models per folder.

To create a new product definition or to modify an existing one, select the Informed Design tab in Inventor, then access the product definition command in the informed design ribbon. The viewable list of existing product definitions is based on the currently open and active document in inventor.

Be it a part or assembly document?

Besides creating new product definitions, you can edit, duplicate, or delete any product definition in the list.

You can also save any changes made to a product definition if performing a save as command in Inventor on a base model document that has linked product definitions, The software will prompt an option to create a copy of the associated product definitions as well.

If saving to a location that contains an .mpd file, the copied product definition will be saved to the existing .mpd file.

If saving the base model to a different subfolder, a new .mpd file will be generated.

If a .mpd file does not already exist in that folder.

In summary, product definitions are the means by which you can publish an Inventor product model to the Autodesk platform.

So that it can be leveraged in Revit designs and web app output generation workflows. Using a predefined set of input parameters and rules that constrain the variants that can be generated and output types that can be extracted according to the product manufacturer's specifications.