Context: The Telecommunication industry has experienced a great revolution since last decade. Mobile devices become the new fashion trend and play a vital role in every one´s life. Due to this reason, major industry experts predict the upcoming time to be the time of Mobile Industry. The success of mobile industry is by and large dependent on its consumers. Therefore it is necessary for the vendors to focus on their target audience i.e. what are the needs and requirements of their consumers and how they feel and perceive about their products. UX evaluation of mobile products and services (MPS) can help the organizations for developing more user friendly products and services that can meet the user expectations, needs and acceptance. Objectives: In this thesis study, one of our main focuses was to explore different definitions and concepts of UX present in academia, ISO and other standards. Also, we were interested to identify different UXEMs and the UX role in mobile industry in order to develop a better understanding about the importance of UX in the success of Mobile products and services (MPS). Methods: An exploratory case study was carried out to answer the research questions of this thesis study. At the end, the results of the case study were evaluated from a workshop, held at Ericsson AB (Karlskrona). On the basis of case study and workshop, final results are presented. Results: During this thesis study, we have proposed an initial framework to understand UX. We have also proposed a toolkit of UXEMs that can provide guideline about UXEMs i.e. which UXEM is suitable for which factor of UX and during which phase of development life cycle. Conclusions: In academia (literature), different definitions and terminologies are present for UX but still no consensus is found on one single definition of UX. In academia, different authors have identified different UX factors that may influence the UX in adoption of MPS. Through Case Study, we identified different UXEMs and UX evaluation criteria that are used to capture the UX. We have presented different UX factors that need to be focused for evaluating UX in Mobile Industry. We conclude that there is a need of such UXEM or UXEMs that can capture the broader picture of UX as most of the identified UXEMs were only useful to measure some of the UX factors. After conducting workshop at Ericsson AB (Karlskrona), we conclude that there is need to make industry and academia more closer for developing good understanding about UX i.e. still industry people are not much familiar with different UXEMs and UX factors .