Regrding cleaning validation

Production
1

Respected all,
I m little confused rearding cleaning validation.
what is the meaning of previous product and next product?
for example, i have to mfg. Product - B in 2000 L reacor and previously Product - A was mfg. in same reactor. So, is product - A called previous product and product- B called next product?

2

Yes, your assumption is corrrct

3

thanks…for guiding me and help me for better understanding