h1. *Installation in a nutshell*

* download these components: petals-se-notification.zip & petals-se-kpi.zi;
* download petals view's war (petalsview.war);
* create all sa-kpi you need to get the infos you want (with prior installation and configuration of related components and services assemblies).

h1. *How does it work?*

* You configure a component so that when it is installed, it will register in petals-se-notification base: "I will send notifications to you".
* Upon reception, petals-se-notification forwards these notifications to petals-se-kpi (configured with its own services assemblies -- sa-kpi).
* What is a sa-kpi? It's a set of filters that will select specific information among the whole flow data. Whenever a notification fits with a sa-kpi, this notification (with selected data only) will be saved in a relational database. This database has to be shared between KPI Service Engine and Petals View.
* Petals View then connects to this database to retrieve informations.
* Messages are saved into the database in a "raw" format. Petals View will give them meaning by naming and organizing them in a human-readable way.



This diagram presents monitoring-related relationships between Petals ESB, various components, SE-notification, SE-KPI, configured sa-kpi and Petals View.

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h1. *Topics covered in the tutorial*

This tutorial will teach how to set up notifications in Petals ESB, then view them in human-readable way thanks to Petals View.
The case study is: find all defenders of a football team amongst Euro2008 selections.
This diagram is an overview of the steps to follow.

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