# PhotosynQ Glossary
To help you getting started, here is a list of commonly used terms to help you to familiarize yourself with PhotosynQ.
| Term | Definition |
|---|---|
| App | Program that can be installed on a Device. |
| Contribution | Measurements taken for a Project and submitted to PhotosynQ. |
| Device | On PhotosynQ, computers, phones and tablets are generally called Devices. |
| Discussion | Projects, Protocols and Macros have a discussion section, to facilitate the easy exchange of ideas between users. |
| Discussion Post | In a discussion, every comment, question or shared image is called Post. |
| Discussion Thread | In Projects, Discussions can have multiple Topics or Threads. Protocols and Macros only have one Thread. |
| Firmware | The software installed on an Instrument. |
| Flag | Some measurements might be of low quality, so they can be flagged. Flagged data is hidden during analysis but is NOT deleted from the Project. |
| Instrument | Equipment that connects to Apps and are used to take Measurements (e.g. the MultispeQ). |
| Macro | Macros are small pieces of code connected to a Protocol to help in analyzing the measurement right after it is finished. |
| Project | Measurements collected on PhotosynQ are organized and stored in Projects. Users can define Protocols and Project Questions for each Project. |
| Project Administrator | Project Administrators get invited by a Project Lead to help manage the Project and take measurements. |
| Project Collaborator | Project Collaborators join Projects or get invited by a Project Lead or Administrator to take measurements. |
| Project Data Viewer | A web app that allows users to filter, visualize and map their data online. |
| Project Lead | The Project Lead is the person who initially creates a Project. Also, the Project Lead invites Administrators and Collaborators. |
| Project Questions | Answering these Questions before every measurement improves the analysis and documentation of each contribution. |
| Protocol | Protocols are instructions for an Instrument on how to conduct a measurement. |
| Series (Data Viewer) | Measurements can be grouped into Series by using the answers to the Project Questions. |
| Synchronize (or Sync) | Apps need to synchronize with PhotosynQ to provide you up to date Projects, Protocols and Macros. |
| Thresholds (Data Viewer) | For measured parameters Thresholds can be set to see a specific range of values. |