Collaborative Service Blueprinting for Design Thinking: Evaluation of a Digital Prototype

A high degree of innovation is becoming a decisive factor for companies aiming at sustainable competitive advantages. New methods of innovation have become increasingly important in practice. Using such methods in globally operating teams requires location- and time-independent solutions such as web-based collaboration tools. This paper evaluates the ability to digitalize the service innovation method Service Blueprinting using a selfdeveloped prototype. The prototype is evaluated thoroughly in two different studies. In-depth user tests with Design Thinking experts and laymen prove the suitability for Design Thinking and the interaction with the prototype from a HCI perspective. Additionally, we evaluate the acceptance, perceived usefulness and effectiveness quantitatively in the light of the prototype’s collaboration capability. The results indicate the transferability of the required mindset through the digital tool as well as its the acceptance and usefulness. It represents a practical and suitable solution for the digitalizing of Service Blueprinting

A heuristic evaluation checklist for mobile shopping applications

Studies on issues related to mobile shopping applications are numerous, however, there is inadequacy in implementing the heuristic evaluation approach to identifying and documenting definite kinds of issues as far as their classifications for mobile shopping applications. Recent studies have shown that there is a deficiency of proper evaluation methods and suitable heuristics and subheuristics needed in recognizing mobile-specific usability issues since existing checklists are either web-centered or developed for general mobile applications such as social media mobile applications and utility mobile applications, and not for mobile shopping applications. These existing checklists are incapable of identifying usability issues of mobile shopping applications; hence, this study aims to address these issues by developing a heuristic evaluation checklist for mobile shopping applications. The strategy employed in the evaluation comprises four phases: identifying problems and objectives, heuristic identification, heuristic evaluation checklist development, and heuristic checklist evaluation. Twelve domain experts verified the proposed heuristic evaluation checklist and data collected was analysed using the Fuzzy Delphi Method. The study successfully identified suitable heuristics and subheuristics that made up the proposed heuristic evaluation checklist. Subsequently, a heuristic evaluation was conducted by six domain experts comprising usability experts, software and mobile application developers, as well as mobile shopping application designers, and the results confirm the effectiveness of the proposed heuristic evaluation checklist in identifying significant usability issues in Shopee mobile shopping applications. Through the heuristic evaluation checklist, usability experts and analysts can direct a dynamically exact evaluation of online shopping applications. In the same method, software and mobile application developers as well as mobile shopping designers can logically design a usable interface following a set of usability standards that will meet users' satisfaction