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yellowbean committed Oct 6, 2024
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Expand Up @@ -249,21 +249,33 @@ This trick is useful to understand how `Hastructure` API work and integration wi
How to evaluate the model built with `Absbox`?
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After hours, probably you have built a model (an instance of `Generic` class) without single error message from engine. You may wondering wheter the model you have built is `correct` ?
After hours, probably you have built a model (an instance of `Generic` class) without single error message from engine !!

The general rule to check the quality of cashflow model :
You may wondering wheter the model you have built is `correct` ?

The general sequence to check to assure the quality of cashflow model :

1. Pool cashflow

Check if the pool cashflow generated is in line with expected pool cashflow. The `Expected` may come from deal documents ,or other cashflow model vendors.
Check if the pool cashflow generated is in line with expected pool cashflow. If pool were not `Correct` ,the rest of cashflow distribution is wrong either.

2. Waterfall

By inspecting `account trasaction` statement, you can view the waterfall actions during all the payment dates and compare with the one described in the deal documents.
By inspecting `account trasaction` statement, you can view the waterfall breakdown actions during all the payment dates and compare with the one described in the deal documents.

3. Bond cashflow

In deal documents, there might be `WAL` of bonds, you can price the bond in `absbox` and check the WAL from the pricing is in line with the ones in deal documents.


.. seealso::

* To view the cashflow :ref:`Getting Results`
* To debug the cashflow model -> :ref:`Debug the cashflow`



How to inspect ?
^^^^^^^^^^^^^^^^^^^^^^^


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