The effectiveness of purchasing activities can be enhanced by proper organization and coordination of the activities. There are four types of purchasing system:-
- Purchase made as per requirement: No purchase is made in advance. Purchase is done as need arises. Method usually applied for emergency requirement or infrequent goods.
- Contract Purchasing: Contract of material is given to an agency. It has an advantage that low price of those materials whose cost fluctuates highly.
- Market Purchase: Purchase is made from the market to take advantage of price fluctuations.
- Schedule Purchasing: It is a cyclic purchase model. A schedule of purchase is made and it is used for those commodities whose price do not fluctuate.