Big Data Era brings global digital infrastructure collaboration built on the emerging standards. Given the complexity and dynamics of each specification, corresponding implementations need to undergo sufficient verification and validation procedures. Significant efforts have been invested into conformance testing of individual requirements, for example, by using formal, semi-formal or informal approaches. Less works have been accomplished, however, on the overall orchestration assessment so as to ensure global validity of conformance statements. For example, cyclic dependencies among conformance statements of a service under test may lead to inappropriate conclusions on the assessment outcome. In this study, a dependency model based on three-valued logic and fixed point theory to address dependency issues among cross-referenced statements is presented, so as to provide effective support to global digital infrastructure collaboration. 
A model for tracing cross-referenced statement validity