- what is entry barrier?
- what is porter’s competitive force model?
- what is database?
- what Is extranet?
- what is crowdsourcing?
- what is customer relationship management?
- what is electronic data interchange (EDI)? In what context is it most often used?
arrier? what is porter’s competitive force model? what is database? what Is extranet? what is crowdsourcing? what is customer relationship management?…

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