MAVEN User Guide

MAVEN is a local host interface designed to automate the collection of metadata for DIANA datasets using URSA. It streamlines the process of gathering necessary dataset information before moving data and metadata to a specified HPC campaign directory via DSI.

Quick Start

If already installed, simply run maven in your terminal. Then, open the provided localhost URL in your preferred browser.

Installation and Setup

Prerequisites

• Python 3.12+ Download

Virtual Environment

It is recommended that users create a virtual environment to run MAVEN with Python 3.12.

Option A: Miniconda3 Download

. ~/miniconda3/bin/activate
conda create -n maven_env python=3.12
conda activate maven_env                # start here if virtual environment exists

Option B: Python venv Download python 3.12+

python -m venv maven_env
source maven_env/bin/activate           # start here if virtual environment exists
pip install --upgrade pip

Option C: uv Download

uv venv
source .venv/bin/activate

Installation and Launching

Option A: GitHub (Alpha version)

git clone https://github.com/lanl/maven.git
cd maven
pip install .

Option B: PyPI (Supported release)

pip install maven-data

After successful install, simply run maven in your terminal. Then, open the provided localhost URL in your preferred browser.

Setup

When first launching the app, you will be required to complete 3 fields:

1. Maven Directory: Where your metadata databases will be locally saved.
2. AI API Key: Secret API key to connect to an AI model with URSA
3. AI Base URL: Endpoint to connect to that AI model

For further instructions on setting up an AI API Key for LANL users, please contact a MAVEN team member.

HPC & DSI Setup

To move data to an HPC campaign space using DSI, contact a MAVEN team member for setup details.

App Notes

The app collects 3 levels of metadata:

1. The Genesis Datasheet (Sections 1-8)

These sections follow the Genesis Datasheet format. URSA leverages your Project Description and Clarification responses to autofill these fields.

2. Findability Metadata

High-level metadata used for indexing and searching.

3. AI-Ready Metadata

Domain-specific technical metadata that extracts values and types from the data.

Once all levels are complete, the app enables users to move data and metadata to the chosen HPC campaign directory.

Contact Us

For general inquiries or help, reach us at maven-help (at) lanl.gov

Bugs/Feature Requests: Maven GitHub Requests

Copyright and License

This program is Open-Source under the BSD-3 License.

© 2026. Triad National Security, LLC. All rights reserved. O5152

This program was produced under U.S. Government contract 89233218CNA000001 for Los Alamos National Laboratory (LANL), which is operated by Triad National Security, LLC for the U.S. Department of Energy/National Nuclear Security Administration. All rights in the program are reserved by Triad National Security, LLC, and the U.S. Department of Energy/National Nuclear Security Administration. The Government is granted for itself and others acting on its behalf a nonexclusive, paid-up, irrevocable worldwide license in this material to reproduce, prepare. derivative works, distribute copies to the public, perform publicly and display publicly, and to permit others to do so.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.