Taking suitable decisions to build ERP for many companies using Spring + JSF

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I'm building an ERP for many small companies, and I'm planning to use Spring+JSF as a framework, using MVC as design pattern. But I have many questions that make me hesitating:

• How to deal with non-identical requirements (caused by several customers)? Do need I to build a project for each customer?!! Or I can build a single project and manage differences by some manner? There are some requirements (but not all of them) which I can control by some configurations.


• I have a lot of code which must be managed as services (Internal mail, notification system, archiving system, ...), what is the best way to build them?


• Can I separate systems (ex. HR, Accounting, ..) in distinct modules?

Could any one help me in taking suitable decisions? Thank you in advance.

asked 34 secs ago

Mahmoud

1

Taking suitable decisions to build ERP for many companies using Spring + JSF