Understanding the operation of family businesses is important worldwide. It is worth examining and evaluating this kind of business in terms of the family, the business and the ownership dimensions. There are no research findings known to provide an international and aggregated cross-sector analysis of family businesses. The purpose of this theoretical approach is to present a new method. With this method it would be possible to carry out a cross-sector and international comparative statistical analysis of family enterprises. This is suitable for making an aggregated analysis of one or more companies. The simultaneous or separate examination of the development of dimensions can assist family businesses in measuring their own status. The TONA model is applicable to measuring the evolution of family businesses and can show the differences between sectors or countries in an illustrative way.

了解家族企业的经营在全球范围内都很重要。值得从家族，业务和所有权方面研究和评估这种业务。尚无研究结果可提供家族企业的国际和跨部门汇总分析。这种理论方法的目的是提出一种新方法。通过这种方法，有可能对家族企业进行跨部门和国际比较统计分析。这适用于对一个或多个公司进行汇总分析。同时或单独检查尺寸的变化可以帮助家族企业衡量自己的状况。