2.3.2 Infrastructure
The IT infrastructure is made of the hardware and software around which the IT system is built. The ability of the system to deliver the goals will greatly depend on the strength of the infrastructure.
IT system infrastructure components. Your text provides adequate information on IT infrastructure. The important concept in the context of supply chain IT systems are Datamart and Data warehouse, which are essential for centralised information management systems. The other important concept in this section of your text is that of client/server architecture. This enables firms to implement a centralised information management system with relatively low investment.
The system is made up of specialised servers supporting all computers in the network. The middleware are the 'translators' residing between clients and servers which make communication possible between all clients and servers within the multi functional corporate IT system. Open standards are essential in a client/server system for all specific client/server combinations to be workable. This is important as firms are moving into complex client/server environments with multiple vendors for networks, hardware and software.
Enterprise resource planning systems. Many companies are in the process of setting up enterprise resource planning systems which provide an enterprise wide database and the transaction capability to initiate, track, monitor and report on customer and replenishment orders. An ERP system is based on client/server architecture and a middleware solution. A broad-based ERP system design includes an integrated database along with chapters to support management of supply chains, service and financial operations, and human resource.
Reading 2.1 provides you with a general description of ERP systems for enterprises and Reading 2.2 covers ERP systems in the context of supply chain management.
Reading 2.4
Koch, C [date unknown]. 'The ABCs of ERP'. CIO Magazine . [10 pages] ( www.cio.com/research/erp/edit/erpbasics.html ) Accessed 6.06.2002.
Reading 2.5
Trunick , PA (1999, January). 'ERP: promise or pipe dream?' Transportation and Distribution , pp.23-4 and 26.
Activity 2.2
Do an internet research on the ERP vendors listed in Reading 2.3 and compare the latest models on the basis of Internet compatibility, price and implementation period.
It should be appreciated that while ERP systems go a long way towards integration of enterprise information systems, there are always functional systems which remain outside the domain of off the shelf ERP systems. These systems require to be plugged into the new ERP system. Additionally, the traditional ERP is basically an inward looking system which is focussed on the information need of the firm, it is not the outward focused system required for the management of today's complex supply chains.
In your text
Read following cases in Chapter 11 in your text.
Case : Back Up in the Espresso Lane (page261).
Case : ERP brews instant success. (Page 264).
Activity 2.3
Analyse the different approaches taken by the two firms in the implementing information systems.