Estimate

Activities

• Activity 2: Determining functions and their structures

Description

Product properties can be analyzed through estimation. It is often used as part of a property analysis or when there is no time for a more precise procedure.

Procedure

1. To increase the estimation accuracy, the following procedure is recommended:
2. Subdividing estimation: Following the basic principle of problem decomposition, divide complex issues and estimate the properties of subsystems independently of the overall context (as a result of error compensation with regard to random errors, the accuracy of the overall result is then higher than that of the partial estimates.)
3. Estimation by several people: Open up different perspectives on a problem; Estimating individuals to be as independent of one another as possible; Then discuss the results, their deviations and possible reasons for this: identify major deviations in the results and examine them critically; Bring in experienced colleagues who are involved in the project as well as those who are not involved
4. Comparative estimation: Using certain bases, such as data from similar facts or average values; Comparisons with similar solutions (possibly taking similarity analyzes into account) can provide significant support
5. Estimating from experience: A certain certainty arises from growing experience; In order to achieve a good learning effect, it is necessary to compare the actual values ÔÇïÔÇïdetermined later with the results of the previous estimate and thus obtain feedback on the quality of the estimate

Sources

• Lindemann 2009, p. 304, 305