A Knowledge Lifecycle Model for measurement of knowledge change

In this paper, a Knowledge Lifecycle Model is proposed to enable the characterisation and quantification of change in knowledge elements, which is a potentially important contributing factor in judging the applicability of the knowledge-based system approach for business and engineering tasks.. The model consists of knowledge states and knowledge actions. The latter enable the measurement of knowledge change in various stages of a product lifecycle. The Knowledge Lifecycle Model is tested using airworthiness directives data for initial validation of the model concepts and knowledge behaviour in the aerospace domain. It is shown that knowledge states and actions are an appropriate way of modelling and measuring knowledge, but further quantitative research is needed to validate and generalize the model.