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Datawarehouse for 2 different CRM systems


Datawarehouse for 2 different CRM systems

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zouhair.ouichdani
zouhair.ouichdani
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Hi guys,

I am currently working on design phase of an integration of a new CRM system Data into the existing DWH solutions.
So far,there is a daily ETL extracting data from CRM Dynamics DB (based on SQL server 2008) into Datawrehouse.All reports are based on the existing DWH.
Now,i have requirements to integrate another CRM system (based on oracle) into the existing DWH solution (SQL server 2008).
Does it make sense to integrate the data coming from different system knowing that business process for this both CRM is different?
OR do I need to build another DWH for the new CRM system?

Thank you in advace for your support.
Eric M Russell
Eric M Russell
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zouhair.ouichdani - Tuesday, January 17, 2017 7:33 AM
Hi guys,

I am currently working on design phase of an integration of a new CRM system Data into the existing DWH solutions.
So far,there is a daily ETL extracting data from CRM Dynamics DB (based on SQL server 2008) into Datawrehouse.All reports are based on the existing DWH.
Now,i have requirements to integrate another CRM system (based on oracle) into the existing DWH solution (SQL server 2008).
Does it make sense to integrate the data coming from different system knowing that business process for this both CRM is different?
OR do I need to build another DWH for the new CRM system?

Thank you in advace for your support.

The whole point of a data warehouse is to conform data from multiple source systems. Stop what you're doing, and don't do anything else until you read at least the first two chapters of this book by Ralph Kimball. There is also a chapter specifically on modeling an example CRM warehouse.

The Data Warehouse Toolkit: The Definitive Guide to Dimensional Modeling
https://www.amazon.com/Data-Warehouse-Toolkit-Definitive-Dimensional/dp/1118530802


"The universe is complicated and for the most part beyond your control, but your life is only as complicated as you choose it to be."
Martin Schoombee
Martin Schoombee
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zouhair.ouichdani - Tuesday, January 17, 2017 7:33 AM
Hi guys,

I am currently working on design phase of an integration of a new CRM system Data into the existing DWH solutions.
So far,there is a daily ETL extracting data from CRM Dynamics DB (based on SQL server 2008) into Datawrehouse.All reports are based on the existing DWH.
Now,i have requirements to integrate another CRM system (based on oracle) into the existing DWH solution (SQL server 2008).
Does it make sense to integrate the data coming from different system knowing that business process for this both CRM is different?
OR do I need to build another DWH for the new CRM system?

Thank you in advace for your support.

Yes, it definitely makes sense to integrate the data from both CRM systems into the same DWH, unless there's a very good reason to create a separate data mart. The key business decisions to be made here would be to decide the priority of the systems if there is common data. If you have customer information in both CRM systems for instance, what needs to happen if you have the same customer in both etc.



xsevensinzx
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Eric M Russell - Tuesday, January 17, 2017 7:59 AM
zouhair.ouichdani - Tuesday, January 17, 2017 7:33 AM
Hi guys,

I am currently working on design phase of an integration of a new CRM system Data into the existing DWH solutions.
So far,there is a daily ETL extracting data from CRM Dynamics DB (based on SQL server 2008) into Datawrehouse.All reports are based on the existing DWH.
Now,i have requirements to integrate another CRM system (based on oracle) into the existing DWH solution (SQL server 2008).
Does it make sense to integrate the data coming from different system knowing that business process for this both CRM is different?
OR do I need to build another DWH for the new CRM system?

Thank you in advace for your support.

The whole point of a data warehouse is to conform data from multiple source systems. Stop what you're doing, and don't do anything else until you read at least the first two chapters of this book by Ralph Kimball. There is also a chapter specifically on modeling an example CRM warehouse.

The Data Warehouse Toolkit: The Definitive Guide to Dimensional Modeling
https://www.amazon.com/Data-Warehouse-Toolkit-Definitive-Dimensional/dp/1118530802

Seconded Eric's suggestion here.

The best approach is to conform both CRM systems into one universal system that is your data warehouse and ETL systems.
ktaylor181818
ktaylor181818
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You mentioned: the business processes for CRM1 (Oracle DB) and CRM2 (SQL DB) is different? It depends on whether the management want the data separate or not. If they want it separate due to different business rules, it's quite simple, if CRM1 has a location of Texas and CRM2 has a location of New York, then you integrate the data of both making sure their location is integrated with each. Now when users run a report or access cube, they can filter the data by location. This way, the business processes (business rules / logic) will remain intact, for the respective locations (Texas / New York). If both in same location, then you integrate the data of both making sure their company / business name is integrated with each.
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