2.3.4 Supply chain management issues and IT
The decision making in supply chain management is carried out at three levels: strategic, tactical and operational. (Refer to Chapter 1 in your text, and to chapter 1, for the type of planning required in each of these three decision levels.)
Figure 2.4 Supply chain decision levels. (adapted from Arimand & Roach 1999)
The ERP systems are inadequate to address decision making at all levels because, while they integrate corporate database systems and automate well structured transaction processes, they are not, despite the name, planning tools. They cannot help managers in decision making at strategic or tactical levels. Supply chain management issues are essentially complex and involve various trade offs and customer service goals. The decision making processes are essentially dynamic in nature and are best solved by computer-human joint efforts. The tools for this are Decision Support Systems (DSS).
In supply chain management the decision support systems are also known as APS (Advanced Planning Systems) or SCS (Supply Chain Systems). These are essentially planning tools which provide the managers support to plan supply chain activities. The type of planning supported by a particular DSS depends on the way the DSS is designed, ranging from simple vehicle route planning to complex supply chain network designs. The DSSs are widely used by large businesses as essential decision support tools for many functional areas within the business. The cost effectiveness and flexibility of DSSs have influenced firms to increasingly use these in supply chains management.
In your text
Read Section 10.6 in your text.