Imagine your relative met an accident. Lost alot of blood. You try to find a donor. It took you 1 hr. And the donor said he is on the other end of city. It will take him 1 hr to get to you if he finds someone to him there. You decide to pick him up. It took you 2 hrs to get him to hospital. Bt when you got to hospital. The relative was dead. The doctor tells you that he could have been saved if donor was provided timely.
We aim to make a database area wise, so that the nearest donor can b selected, and provide transportfor them in case they are needed. Thus minimising the time between accident and donor provision.