people that participate in DBMS environment r
data administrator : ( DA )responsible for management of data resources e,g planning ,
policies, standards., procedures, conceptual/logical db design..
database administrator :: ( DBA ) ….resposible for physical reliazation of db e,g physical
db design, performance, implementation, security, integrity, maintaince, users/ groups
a. logical designer : identify data (entities & attribbutes), relationships b/w data,
constraints on the data
b. physical designer : mapp the logical data models in to a set of tables & integrity constraints, select sp storage str & access methods, designing security measures.
application Programmer :: uses a 3rd or 4th generation prog lang
End Users ::
a . Naive users : unaware of DBMS.
b . Sophisticated users : familiar wth the str & facilities of DBMS.