TPS (transaction processing system) is the basic business system that serves the operational level (analysts) in an organisation. The most common example is a payroll system or an order-entry system.
DSS (decision support system) such as Boston Coach’s, models information to support managers and business professionals during the decision making process. The three quantitative models often used by DSS are:
1) Sensitivity analysis
2) What-if analysis
3) Goal seeking analysis
Describe the three quantitative models typically used by decision support systems.
a. Sensitivity analysis –study of the impact that changes in one or more parts of a model .Users change the value of one variable repeatedly and observe the resulting changes in other variables.
b. What-if analysis- checks the impact of a change in an assumption on the proposed solutions. Users repeat this analysis until they understand all the effects of various situations.
c. Goal seeking analysis – finds the inputs necessary to achieve a goal such as a desired level of output. Instead of observing how changes in a variable affects other variables as in what if analysis , goal seeking sets a target value (a goal) for a variable and then repeatedly changes other variables until the target value is achieved .
Describe a business processes and their importance to an organisation.
A business process is a standardised set of activities that accomplish a specific task such as processing a customer’s order. It is important as it organises, coordinates and focuses on the work which is used to produce a valuable product or service for an organisation.
Compare business process improvement (BPI) and business process re-engineering (BPR).
BPI is the continual process which attempts to understand and measure the current process and make performance improvements accordingly. BPR is the analysis and redesign of workflow within and between enterprises. The purpose is to make all business processes best in class. It is through technology that it aims to support and develop theses business processes.
Describe the importance of business process modelling (or mapping) and business process models.
Business process modelling is the activity of making detailed flowcharts or process map of a work process which aims to show process details in a gradual and controlled manner, encourage consciousness and accuracy in describing the process model, focus attention on the process model interfaces and provide a powerful process analysis and consistent design vocabulary. The business process models make the processes visible.
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