Absud-Hamil LLC is a major service provider in the IT sector. The company specializes in helping companies with artificial intelligence integration in existing web-based platforms. Currently they are using flowcharts of the user's experience to improve their services in export markets. This allows them to isolate customer touchpoints, describe user interactions in detail, identify the work that is happening behind the scenes and develop an overall service blueprint. What is this service development tool commonly called? User diary Customer journey mapping Experience prototyping User shadowing