No, there is no universally fixed or standard criterion weight for assessing sustainability, because the appropriate weights can vary significantly depending on the context, industry, and specific objectives of the assessment. However, here are some approaches you can consider. Multi-Criteria Decision Making (MCDM): This approach involves assigning weights based on the relative importance of each criterion as determined through expert judgment or stakeholder input. Techniques such as Analytic Hierarchy Process (AHP) or Analytic Network Process (ANP) can be used to derive these weights systematically. Interpretive Structural Modelling (ISM): ISM can help in identifying the most influential criteria and their relationships, which can then inform the selection and weighting of criteria. This method involves expert input to construct a hierarchical model of the criteria. Cut-off Criteria: While there is no standard cut-off weight, some studies suggest prioritizing criteria that have a higher impact or relevance to the specific sustainability goals of the organization. This can be determined through initial screening or sensitivity analysis so, by integrating these methods, you can effectively reduce the number of criteria and focus on the most critical ones for your ISM analysis