Strategically, business processes are all the more important when, as seen from today's (and from a future point of view), they contribute to the net product value increase. The importance of business processes for achieving the business goals of an organization also rates the supporting IT systems with a higher value in the corporate context. Therefore, efficiency and effectiveness of corporations and authorities are influenced by the pointed utilization of IT, in particular since requirements of supporting IT systems can be deviated from the business processes.
The generation and procurement of IT systems used for the support of business processes is, therefore, an important and critical factor. Information management of corporations and public authorities ought to give it their special attention in connection with strategies. The technical handling of generating and procuring the necessary IT systems is regulated in the V-Model.
The BPR, however, aims to change radically the existing processes. The initial question is: what can be changed? Available processes are basically doubted, and new approaches for business processes are looked for. The system as a whole will be dramatically altered in order to achieve improvements of significant dimensions. With regard to IT this means that completely different processes have to be supported that was the case in the past.
Between the two extreme points there is an area where-according to traditional approaches-the attempt was made to improve existing processes with modern IT. This area is dangerous, however, since existing, but inefficiently organized business processes will be automated at great cost and effort. Therefore, when developing and procuring (also when changing, though) information systems, management should always take into consideration the factor that organization of the business processes to be supported must still meet present day requirements. According to which approach-"incremental improvements" or "radical changes"-a decision is made depending on the opportunities, and must in each case be decided by management. Within the scope of a far-reaching, continuous improvement program it will not be difficult to imagine that both procedures can be combined. To do so the existing business processes will be looked into and called in question after some prolonged periods. During these intervals the attempt is made, however, to continually optimize the processes by means of an incremental process handling.User Requirements are the starting point of the regulations in submodel SD of the V-Model. These user requirements result also from a business process analysis or from an optimization. The following is to show that actual connections exist. Activity SD1 - System Requirements Analysis, is used as the initial starting point. Method BPR (Business Process Reengineering [Geschäfts-Prozeß-Optimierung]) is the basis for the business process analysis.
A business process analysis results in a number of data that can be utilized later in the system generation. Though a business process analysis predominantly concentrates on the process itself, the business process reengineering (BPR) takes the system to be realized later into consideration as early as this. The integration of off-the-shelf products also plays an important part. One of the central parts of the BPR investigation is who handles which process with which resources.
In this connection, resources of the most varying kinds may be used. It is the objective of the optimization based on the analysis to find out in which way these computer-aided resources may simplify the processes. If the corresponding characteristic numbers refer to an IT system development, then the results of the BPR will be used in the individual products of submodel SD. The organizational embedding of the future system will be taken into consideration.SD1 - System Requirements Analysis and SD2 - System Design are
Based on this approach it is possible to get a clear idea which items of information are important for the V-Model and which results merely figure as marginal information. Marginal information is obtained when observing the structure of the business process, information relevant for the V-Model, however, is obtained during the analysis of the business process.
|This page online GDPA Online Last Updated 03.Mar.2004 by C. Freericks|