Super large organizations like military and defense have a large IT army with proficient IT expertise.
There are two facets of ERP vendor lock-in's:
Your IT staffs not only want to customize ERP applications on PostERP framework, but also want to continuously improve the PostERP framework itself.
As an ambitious IT decision maker in a large organization, backed by a strong IT team, you may one day decide to go your own independent IT development route. Therefore, in the interest of investors and taxpayers, you want to cut ties with your ERP provider.
Does your ERP software vendor permit you to achieve your ambition?
→ Large organizations with strong IT teams can purchase the source code for PostERP, a low-code ERP development and execution framework.
Did your ERP software vendor ever hint this to you?
"Your IT team members are simply incapable of pursuing your own way of developing information systems framework because our grandeur ERP software comprises a million lines of source code and is 100 GB in size."
"Besides, its source code is the rocket science full of business wisdom accumulated over 50 years, not for sale."
Or, do you come to the same conclusion yourself?
→ The compressed source code of PostERP 【framework】 is smaller than 10 MB.
Can't your IT army of 500 engineers take over our task of constantly enhancing the light-weight PostERP framework so that your version outperforms ours?
As the IT decision maker in a critical government sector, are you sure there absolutely is no backdoor in your ERP software?
→ PostERP 【framework】 is built entirely on FOSS except the reporting component.
→ You can buy the source codes of PostERP framework and your IT experts can scrutinize every single line of PostERP code to verify the possible flaws in the framework.
Are you sure there absolutely is no backdoor in the RDBMS you are using?
→ PostERP is powered by the battlefield tested PostgreSQL, a FOSS.
As the IT decision maker, you perfectly understand the quality of the bloated and slow crawling Windowz 10, 11,...20.
But like us, you probably have no idea how many backdoors there might be in that OS.
→ PostERP server runs in Linux.