Despite its strategic significance, the literature has failed to define practical flexibility adequately. Based on different conceptualizations and measuring methods, empirical investigations have produced a variety of and often conflicting findings. This article offers a construct for defining and measuring practical litheness in the context of human-resource-management. We will attempt to explain this term by classifying previous definitions and including an integrated idea into the process. In the first section of this article, We investigate and explain why human resource management systems require a certain amount of practical flexibility to helping businesses adjust to changing surroundings. This competence is viewed as a significant competitive advantages from this vantage point. We propose a novel functionality adaptability framework and a measuring model based on our theoretical model. Which may aid in the development of future in-depth study on this subject. This design should be used as a foundation for developing a realistic versatility assessment scale. Potential study lines emerging from this assessment are addressed in the last section of the article. We focus on the need to explore how human resource identification and exploitation may be integrated into adaptable human resource management techniques.