feat(docs): Add Methodology

Signed-off-by: pmikus <peter.mikus@protonmail.ch>
Change-Id: I5b2e4c14cc258d821b630d2e54b23a8468820764

1 files changed, 37 insertions, 0 deletions

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+---
+bookFlatSection: true
+title: "Trending Presentation"
+weight: 3
+---
+
+# Trend Presentation
+
+## Failed tests
+
+The Failed tests tables list the tests which failed during the last test run.
+Separate tables are generated for each testbed.
+
+## Regressions and progressions
+
+These tables list tests which encountered a regression or progression during the
+specified time period, which is currently set to the last 21 days.
+
+## Trendline Graphs
+
+Trendline graphs show measured per run averages of MRR values, NDR or PDR
+values, group average values, and detected anomalies.
+The graphs are constructed as follows:
+
+- X-axis represents the date in the format MMDD.
+- Y-axis represents run-average MRR value, NDR or PDR values in Mpps. For PDR
+  tests also a graph with average latency at 50% PDR [us] is generated.
+- Markers to indicate anomaly classification:
+
+  - Regression - red circle.
+  - Progression - green circle.
+
+- The line shows average MRR value of each group.
+
+In addition the graphs show dynamic labels while hovering over graph data
+points, presenting the CSIT build date, measured value, VPP reference, trend job
+build ID and the LF testbed ID.