ERP stands for Enterprise Resource Planning. In practice, it is an integrated management information system built on information technology and systematic management thinking, designed to give decision-makers and employees a platform for running the business. It developed from MRP, or Material Requirements Planning, but widened the scope. Its central idea is supply-chain management: instead of stopping at the traditional boundary of a single company, it seeks to optimize resources across the supply chain. That is why it is often described as an information system for the network economy. Its contribution is clear in improving business processes and strengthening core competitiveness.
ERP began to appear in the early 1980s. In the 1990s, well-known international products represented by SAP and Oracle entered China and expanded quickly. Early domestic ERP products also emerged, including Kaisi ERP, Lima ERP, Hejia ERP, and Boke ERP.
The core content and characteristics of an ERP system include:
- Internal business applications for finance, logistics, human resources and other core functions. The logistics system adopts MRP thinking from manufacturing. The financial management information system supports budget management, business evaluation, management accounting, and ABC cost collection. The HR system brings together modern ideas in organizational design, position management, compensation systems, and human-resource development.
- Company-wide integration and data sharing. All source data is entered once in one system, and the same data is shared across business systems, which helps keep information consistent.
- Process improvement and automation. Internal business and management processes are optimized, and the main workflows become automated.
- Mainstream technology and architecture. ERP systems use B/S and Internet architectures, Windows interfaces, and can be accessed wherever communication is available.
- Integrated, advanced, unified, complete, and open design.
To see the logic in everyday terms, imagine a family preparing dinner. A husband calls home at noon: he would like to bring several colleagues for dinner. This is an order intention. The wife asks how many people, what time, and what they want to eat. He says six people, around seven o'clock, with wine, roast duck, tomato scrambled eggs, cold dishes, and egg-drop soup. This is business communication. The wife says she can manage it. That is order confirmation.
She writes down the menu, which works like an MPS, or master production schedule. The concrete items to prepare are duck, wine, tomatoes, eggs, seasonings and so on, which form a BOM, or bill of materials. Expanding the recipes shows that eggs are a shared material, needed for both the scrambled eggs and the soup. She checks the refrigerator, which is the warehouse, and finds only two eggs left. That is a material shortage.
At the market she asks the vendor the price. He says one yuan each, five yuan for half a dozen, and 9.5 yuan for a dozen. She needs eight but buys a dozen because the batch price is better. This is economic batch purchasing. One egg is broken, so she exchanges it. That covers acceptance, return, and replacement.
Back home, she washes, cuts, and cooks. That is the routing. The kitchen has a gas stove, microwave, and rice cooker, which are work centers. She finds that plucking duck feathers takes the most time, making it a bottleneck and a key process route. Making roast duck in the microwave may not be fast enough, which is a capacity shortage, so she buys a ready-made duck from the restaurant downstairs. That is outsourcing.
At four in the afternoon the phone rings again. Her daughter wants to bring classmates home for dinner. This is an urgent order. The daughter wants tomato scrambled eggs, does not want to eat with the adults, and will be back around 6:30. The order cannot be merged with the adult dinner. The wife confirms it. Eggs are now short again, so she calls the vendor to deliver more. That is emergency purchasing.
At 6:30 everything is ready except the roast duck. She calls to ask why the ordered duck has not arrived. This is follow-up on an outsourced purchase order. The vendor says the delivery person has already left and may be stuck in traffic. The doorbell rings, the duck arrives, and she signs for it. That is receiving, warehousing, and transferring the amount to accounts payable.
At 6:45 the daughter calls again: she wants to bring friends now. This is another urgent request, this time for immediate stock. The wife refuses because two tables are already being prepared and there is not enough time. She apologizes and asks her to give notice next time. This illustrates an ERP limitation: it needs a reasonably stable external environment and at least some lead time.
After the guests leave, the tired wife sits on the sofa and tells her husband that they entertain so often that they should buy more kitchen equipment. That is equipment purchasing. She adds that they might hire a nanny, which even suggests an interface with the HR system. The husband says she can decide what is needed. That is approval. She also says household spending has been high and asks him to use his secret savings to help. That final step is like chasing accounts receivable.
The joke is that a well-run household can be a serious competitor to a production manager.