# XMAPortal : Data Organization

## Overall data organization within the XMA Portal. <a href="#dataorganization-overalldataorganizationwithinthexmaportal." id="dataorganization-overalldataorganizationwithinthexmaportal."></a>

Each repository contains a number of studies. Each study within each repository is associated with one or more PI(s) (Principal Investigator), each study is also associated with a study leader which is usually the grad. student or post-doc. that performed the actual experiments within each study.

![](/files/-M-QIYTeYWmSYOVq2Gt7)

## Data organization within each study <a href="#dataorganization-dataorganizationwithineachstudy" id="dataorganization-dataorganizationwithineachstudy"></a>

The figure below shows the data organization within each study. A study usually contains several trials, and each trial contains files and metadata associated with that trial. A study can also contain files that are not part of a trial.

![](/files/-M-QIYTdmgO0ExaoOc4e)


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