SRO == School Resource Officer: A deputy/officer of a local law enforcement agency who is uniformed, armed, possesses arrest powers and who is assigned to a Virginia middle or high school where he/she enforces the law, instructs law-related education classes, advises on crime prevention, investigates crime and serves as mentor and role model. SSO == School Security Officer: A person hired by a local school board, who usually wears a uniform, does not carry a gun, may detain but not arrest crime suspects, and serves mainly to safeguard occupants of their assigned school.
It’s very simple, school resource officer is required to manage and produce all necessary resources for the school while on the other hand School Security Officer is required to make school secure. I think, you must see here now where I’ve written about it in very simple words but I hope that it will help you understand it.
As discussed below, there are many differences between the two terms. If you have to choose between the two, I will go with SRO because more features will be helpful. I’m more than confident that you’ll be able to make the right choice. If you can’t decide what is right for you, then look through a few resources that will tell you more about the positive qualities of SRO. I can already recommend that you go to https://www.sterlingcheck.co.uk/blog/2019/07/what-is-bpss-essentials-baseline-personnel-security-standard/. With help like this, you won’t have any doubts.