# Synthetic measure

A synthetic measure (or synthetic indicator) is a value that is the result of combining other metrics, which are measurements of various features.

## Examples

### Quality of service

There is a method to measure quality of service in hotels. In related study [1] authors aggregate tourist opinions, measured on a scale from 1 to 10. Synthetic measure (indicator) of service quality in each hotel is calculated with the help of the aggregation operator.

### Project performance

Other study[2] proposed to use classical parameters EV, PV and AC to carry out the synthetic measure of project performance.

### Rankings of countries

Different normalized stimulants and destimulants were used in research[3] to create synthetic measure that selects countries with the best and the worst levels of implementation of Europe 2020 targets.

### Information quality

There are scientific works [4][5] that describe method of quality assessment of Wikipedia articles using synthetic measure. The quality can be measured on a scale between 0 and 100 based on the following formula:

${\displaystyle {\text{quality score}}={\frac {1}{c}}\sum _{i=1}^{c}nm_{i}}$

where:

• ${\displaystyle nm_{i}}$ is a normalized metric ${\displaystyle i}$
• ${\displaystyle c}$ is the number of metrics

The results of the calculations are available on WikiRank[6] service.

## References

1. ^ Ban, Olimpia (2008). "Synthetic Measure of the Quality of Service Taking into Account the Client's Perspective in the Hotel Industry". Economia Aziendale Online. 1: No 1 (2008): Issue 1/2008. doi:10.13132/2038-5498/2008.1.1-7.
2. ^ Certa, Antonella; Enea, Mario; Giallanza, Antonio (2009-12-04). A Synthetic Measure for the Assessment of the Project Performance. Business Performance Measurement and Management. pp. 167–180. doi:10.1007/978-3-642-04800-5_11. ISBN 978-3-642-04799-2.
3. ^ Balcerzak, Adam P. (2009-12-04). "Europe 2020 strategy and structural diversity between old and new member states. application of zero unitarization method for dynamic analysis in the years". Economics & Sociology. 8 (2): 190–210. doi:10.14254/2071-789X.2015/8-2/14. ProQuest 1717432597.
4. ^ Lewoniewski, Włodzimierz; Węcel, Krzysztof (2017-10-18). Relative Quality Assessment of Wikipedia Articles in Different Languages Using Synthetic Measure. Lecture Notes in Business Information Processing. 303. pp. 282–292. doi:10.1007/978-3-319-69023-0_24. ISBN 978-3-319-69022-3.
5. ^ Lewoniewski, Włodzimierz; Węcel, Krzysztof; Abramowicz, Witold (2017-12-08). "Relative Quality and Popularity Evaluation of Multilingual Wikipedia Articles". Informatics. 4 (4): 43. doi:10.3390/informatics4040043.
6. ^ WikiRank - quality and popularity assessment of Wikipedia articles