s. What are predefined filter queries? A predefined filter query enables users to select and define categories of data they want related to relevant subjects. These filters are displayed as checkable boxes to select items to query. This includes the ability to query by sub-sets of connections based on experimental conditions or other parameters. This way, data is narrowed down to include the concepts of most interest. Can new queries be added to existing models? Yes, NDA provides a way to add predefined filters. If the data are present a predefined filter can be created. Contact the NDA Help Desk for more information on how to add queries for data that interests you. Glossary Concept-Style Query NDA has predefined ontological concepts that can be used to query all NDA and federated data. One selects a Concept and applies the filter to see the number of subjects available. Those that have access (NDA Credentials) may then download any datasets. The NDA has adopted the published Autism Spectrum Disorder (ASD) phenotype ontology, defined in "Modeling the Autism Spectrum Disorder Phenotype" as an initial implementation of ontological concepts. Dataset A dataset is a named grouping of data that contains individual units organized into a type of data structure. NDA's defined data structures can be found the NDA Data Dictionary. Contact NDA Help Desk NDA Help Center Frequently Asked Questions Glossary Contact NDA Help Desk NDA Help Center Featured Dataset - 