PPDB issues-four aspects of current management issues of foundry enterprises are discussed in this paper,including Production Management,Process Control,Duration Monitoring and Business Intelligence Data Analysis.Also a whole Enterprise Resource Planning(ERP) solution for foundry enterprises is proposed.The solution contains many models,four of which are used to solve the PPDB issues.These are called SPDB models,which separately are the Single-piece management model(based on casting lifecycle),Process management model(based on task-driven technology),Duration monitoring model(based on surplus period),and Business intelligence data analysis model(based on data mining).An ERP system for foundry enterprises,named HZERP,was researched and developed,and applied to a sand casting company of single piece and small batch production.Qualitatively and quantitatively comparing the application effect before and after implementing the HZERP system,the result demonstrated that the foundry ERP system based on the SPDB models can help metal casting enterprises achieve the single-piece management,better regulate the production processes,improve production and delivery management,shorten the production cycle,reduce costs,and speed up the capital turnover to a large extent. PPDB issues-four aspects of current management issues of foundry enterprises are discussed in this paper, including Production Management, Process Control, Duration Monitoring and Business Intelligence Data Analysis. Alto a whole Enterprise Resource Planning (ERP) solution for foundry enterprises is proposed.The solution contains many models, four of which are used to solve the PPDB issues.These are called SPDB models, which are the single-piece management model (based on casting lifecycle), Process management model (based on task-driven technology) Duration monitoring model (based on surplus period), and Business intelligence data analysis model (based on data mining). An ERP system for foundry enterprises, named HZERP, was researched and developed, and applied to a sand casting company of single piece and small batch production. Qualitatively and quantitatively comparing the application effect before and after implementing the HZERP system, the result demonstrated that the foundry ERP system based on the SPDB models can help metal casting enterprises achieve the single-piece management, better regulate the production processes, improve production and delivery management, shorten the production cycle, reduce costs, and speed up the capital turnover to a large extent.