# Introduction The HierarchyFilter extension can interact with your dashboard through parameters that can be used in calculations, filters, and set/parameter actions. It also allows you to set a filter that can be used to limit the data in the hierarchy to the current node and all child nodes and mark selections of selected nodes and child nodes. #### Supported data structures It is important to know that the HierarchyFilter extension supports two different data models to visualize and interact with your hierarchy dataset. Both datamodels require a different approach in configuring the HierarchyFilter extension. This Product Guide will elaborate on both data models/structures. 1. Dimensional data. The hierarchy is based on the dimensions in your dataset. An example of this model is the Product Structure in the SuperStore demo dataset of Tableau (Category >> Sub-Category >> Manufacturer >> Product Name) 2. Recursive data. The data structure you will often find in organization structures and consists of a Parent-Child relationship. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.infotopics.com/hierarchyfilter/getting-started/introduction.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.