Accepting ambiguity regarding the design process requires an effective approach that achieves a balance between creativity and clarity. To effectively manage ambiguity, designers need to develop an in-depth understanding of the cognitive processes, emotional triggers, and interpretive biases of their users. Through embracing ambiguity, designers may create a sense of exploration in their creations, encouraging people to participate in a process of investigation and interpretation. After all, the everyday world itself is inherently ambiguous: most things in it have multiple possible meanings. However, ambiguity can have positive effects if it is used carefully and properly. The research problem lies in confirming that using ambiguous designs can successfully navigate interfaces and create designs that meet the needs of both stakeholders and users. And tries to answer the following question: What is the role of ambiguity in influencing design in general and user experience design in particular and the extent of its impact on design. The research aims to emphasize the importance of ambiguity in the stages of user experience design, identify its advantages, disadvantages and identify how to clarify ambiguity for both stakeholder and the user. The importance of the research becomes clear by achieving the positive impact of strategic ambiguity and its impact on user experience design, studying the concept of ambiguity effect and its relationship to cognitive bias, and concluding its components. The research supposes that: Employing ambiguity in the user experience design helps achieve the positive impact of a distinctive user experience and make it more effective and personalized. Awareness of the concept of ambiguity effect helps reduce the user's cognitive bias and transform the interface to a distinctive design that positively affects the user. The research followed the descriptive approach through the theoretical framework and the analysis of some models to confirm the hypotheses of the research