[IMP] Appraisals: Skills Report - highest improvement

closes odoo/documentation#11112

Signed-off-by: Lara Martini (larm) <larm@odoo.com>

content/applications/hr/appraisals/skills_evolution.rst

@@ -98,6 +98,67 @@ appear. In this example, only :guilabel:`Marc Demo` meets these criteria.
    :align: center
    :alt: The employees with expert Javascript skills.
 
+Use case: Assess highest improvement
+====================================
+
+Another way to modify the :guilabel:`Appraisal Skills Report` is to identify the employee who has
+the highest amount of improved skills over a specific period of time.
+
+To view this information, first remove the default filter in the search bar. Next, click the
+:icon:`fa-caret-down` :guilabel:`(down arrow)` icon in the search bar, then click
+:guilabel:`Improvement` beneath the :icon:`fa-filter` :guilabel:`Filters` column. Enabling this
+filter only presents skills that have improved.
+
+It is possible to view the skills that have improved over a period of time, such as a specific
+quarter, or month. With the search bar drop-down menu still expanded, click :guilabel:`Add Custom
+Filter` at the bottom of the :icon:`fa-filter` :guilabel:`Filters` column, and an :guilabel:`Add
+Custom Filter` pop-up window appears.
+
+Select :guilabel:`Create Date` for the first drop-down field, then select :guilabel:`is between` for
+the second drop-down field. Once :guilabel:`is between` is selected, a second field appears after
+the last field. Using the calendar selector, select the date range to apply the filter to. Once all
+the fields are properly formatted, click :guilabel:`Add`.
+
+The custom filter presents only the skills that have improved during the specified time period,
+organized by employee.
+
+.. example::
+   To determine the employee with the most amount of improved skills for the third quarter, remove
+   the default filter in the search bar of the :guilabel:`Appraisal Skills Report`. Next, activate
+   the :guilabel:`Improvement` filter, then click :guilabel:`Add Custom Filter` at the bottom of the
+   :icon:`fa-filter` :guilabel:`Filters` column.
+
+   In the resulting :guilabel:`Add Custom Filter` pop-up window, select :guilabel:`Create Date` for
+   the first drop-down field, then select :guilabel:`is between` for the second drop-down field. Two
+   date fields appear after :guilabel:`is between` is selected.
+
+   Using the calendar selector, set the first date to :guilabel:`07/01/2024` and the second date to
+   :guilabel:`09/30/2024`, then click :guilabel:`Add`.
+
+   These filters present only the skills that have improved during the third quarter (between July
+   1st and September 30th, 2024), organized by employee.
+
+   .. image:: skills_evolution/custom-filter.png
+      :alt: The Custom Filter pop-up with the parameters set.
+
+To view the number of employees and skills in further detail, click the :icon:`oi-view-pivot`
+:guilabel:`(Pivot)` icon in the top-right corner to view the data in a pivot table. This presents a
+pivot table with the employees populating the rows, and the only visible column represents the total
+number of improved skills.
+
+To expand more rows or columns to view which skill types had the most overall improvement, click
+:icon:`fa-plus-square` :guilabel:`Total` above the :guilabel:`Count` column, then click
+:guilabel:`Skill Type` from the resulting drop-down menu. This organizes the total improved skills
+by their respective skill type.
+
+.. example::
+   In this example, it is determined that :guilabel:`Charles Reginald` had the largest improvement
+   in the third quarter, with six improved skills. Additionally, they also had the most skill
+   improvements for both :guilabel:`Languages` (three) and :guilabel:`Programming Languages` (two).
+
+  .. image:: skills_evolution/largest-improvement.png
+     :alt: The pivot table showing the skill improvements for the third quarter.
+
 .. seealso::
    - :doc:`Odoo essentials reporting <../../essentials/reporting>`
    - :doc:`../../essentials/search`