Add association D-Bus example
Show how the primary/secondary element and association terms map to
D-Bus. Also add a link to the mapper association documentation.
Change-Id: Ib7c64b4a1a02d0a902f8ab2fc2d67e2e4c59da45
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
diff --git a/requirements.md b/requirements.md
index cca9e66..5c85e9b 100644
--- a/requirements.md
+++ b/requirements.md
@@ -100,5 +100,15 @@
- The `{secondary element}` is `{secondary association}` the
`{primary element}`.
+These correspond to the mapper D-Bus object paths
+`{primary element}/{primary assocation}` with an endpoints property value of
+`{secondary element}` and `{secondary element}/{secondary association}` with an
+endpoints property value of `{primary element}`.
+
In some cases it may be required for grammatical correctness to add a
-preposition to the secondary assocation, such as 'by' or 'with'.
+preposition to the secondary association, such as 'by' or 'with'.
+
+Additional information on associations is in the [mapper documentation][].
+
+[mapper documentation]:
+ https://github.com/openbmc/docs/blob/master/architecture/object-mapper.md#associations