Rewriting eye tracking context and gaze analysis sections.

1 files changed, 18 insertions, 0 deletions

diff --git a/docs/user_guide/eye_tracking_context/introduction.md b/docs/user_guide/eye_tracking_context/introduction.md
new file mode 100644
index 0000000..8fe6c81
--- /dev/null
+++ b/docs/user_guide/eye_tracking_context/introduction.md
@@ -0,0 +1,18 @@
+Overview
+========
+
+This section explains how to handle eye tracker data from various sources as live streams or archived files before to passing them to a processing pipeline. Those various usages are covered by the notion of **eye tracking context**.
+
+To use a ready-made eye tracking context, you only need to know:
+
+* [How to edit and execute a context](configuration_and_execution.md)
+
+More advanced features are also explained like:
+
+* [How to script context](./advanced_topics/scripting.md),
+* [How to define a context](./advanced_topics/context_definition.md)
+
+To get deeper in how context works, the schema below mentions *enter* and *exit* methods which are related to the notion of [Python context manager](https://docs.python.org/3/reference/datamodel.html#context-managers).
+
+![ArContext class](../../../img/eye_tracker_context.png)
+