Could APEX be used for development of a General Ledger system?

Hi All,
I am interested in developing a "light" web-based erp system for small sized companies for a vertical market. This system should be composed of General Ledger, Inventory & Payables functional areas. I just want to know if APEX could be used for developing applications of this kind. Do you believe that APEX is a mature platform in order ro be useful for development of complex applications? I'm very impressed by this platform but I do not have the necessary experience in order to decide if I could use APEX for more complex and demanding apps.
Thank you very much,
George Papageorgiou

Technically speaking Apex can handle anything other frameworks..etc can do. I think your target market will determine whether Apex is the correct choice or not.
Larger companies will want to go with an established ERP system like Oracle Financials, SAP, Costpoint..etc. So if you are aiming at a mid to small sized company, they may have a much smaller budget for such a system. If you are planning to make it a SAAS and host the solution yourself, I think Apex would be a good fit. If you are planning on selling the software for a local installation at the customer site, it may not be the best fit due to its coupling with the Oracle database. Personally I wouldn't want to put my entire financial set of data on someone else's server, but thats just me.
In my own opinion, a good ERP or 3rd party COTS product does not dictate to you which database you need to use, but instead supports multiple. Apex lives inside the Oracle database, so your customers have to run Oracle. For larger shops, it is not an issue, but for smaller shops, they may want to use mysql or something similar. Now people here will say "But Oracle XE is free!". This is true, but it is also almost 6 years old, completely unsupported by Oracle, and not patched. So I wouldn't stake my entire success on it.
So again it really will depend who you are going after, whether you will host the solution, and whether you think the cost/skill level of Oracle will be a barrier to your customers.

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