What is the difference between direct and indirect recruitment?

Direct recruitment is basically a recruitment outside a system or more specifically an organisination , so , direct recruitment has a wide scope , candidates are choosen among a huge crowd which has more talent, new ideas and also meritorious .....

while indirect recruitment is basically recruitment inside the system or an organisation , which recruits the people which were already in the system , it may be promotion or watever , so , it does not have a wide scope , but it is based on experience , more experienced people share their experience with others ..