PlanDev is a software framework for modeling spacecraft. Its main features include:

• A Java-based mission modeling library
• A discrete-event simulator
• An embedded TypeScript DSL for defining and executing scheduling goals
• An embedded TypeScript DSL for defining and executing constraints
• A GraphQL API
• A web-based client application

PlanDev & SeqDev Naming

As new mission communities have joined PlanDev, we’ve evolved our product focus and naming. What you need to know:

• The planning tool is now named PlanDev and the sequencing tool is now named SeqDev
• Most repositories have been renamed, and the rest will be renamed soon. The repository code structure has not changed
• Published code packages (NPM, Java, and Docker images) still retain their old names but will be renamed in a future version
• Changes affecting your code will be announced in advance with upgrade guidance

For the latest documentation, visit: PlanDev Documentation

Getting Started

To get started using PlanDev for the first time please do our fast track tutorial on our documentation website.

Need Help?

• Join us on the NASA-AMMOS Slack (#plandev-users)
• Contact plandev-support@googlegroups.com

News and Updates

• Join the PlanDev Users group to stay up to date on news, releases, and our project roadmap.

Directory Structure

.
├── .github                     # GitHub metadata
├── constraints                 # Java library for constraint checking
├── contrib                     # Java convenience classes for mission models
├── db-tests                    # Database unit tests
├── deployment                  # Deployment artifacts and documentation
├── docker                      # Additional Dockerfiles for PlanDev-specific images
├── docs                        # Documentation
├── e2e-tests                   # End-to-end tests
├── examples                    # Example mission models
├── gradle                      # Gradle Wrapper
├── load-tests                  # Load testing code and configuration
├── merlin-driver               # Java library for discrete-event simulation
├── merlin-framework            # Java library for mission modeling
├── merlin-framework-junit      # Extension of JUnit to unit test mission models
├── merlin-framework-processor  # Java annotation processor for mission models
├── merlin-sdk                  # Java interface between mission models and the merlin-driver
├── merlin-server               # Service for planning and simulation
├── merlin-worker               # Worker for executing simulations
├── parsing-utilities           # Java classes for JSON serialization and deserialization
├── permissions                 # Java library for authorizing endpoint requests
├── scheduler-driver            # Java library for goal-oriented scheduling
├── scheduler-server            # Service for scheduling
├── scheduler-worker            # Worker for executing scheduling goals
├── sequencing-server           # Service for sequence generation and management
└── third-party                 # External Java dependencies that are not obtained from Maven

Want to help?

Want to file a bug, contribute some code, or improve documentation? Excellent! Read up on our guidelines for contributing. If you are a developer you can get started quickly by reading the developer documentation.

License

The scripts and documentation in this project are released under the MIT License.