A Usability Model for Mobile Applications Generated with a Model-Driven Approach

Benammar, Lassaad

doi:10.14569/ijacsa.2019.0100218

Cited by 10 publications

(20 citation statements)

References 10 publications

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“…In Wong et al, 43 the authors conducted a case study to analyze the usability of a smartphone user interface and mobile apps among 80 subjects, but their approach does not discuss the impact of usability mechanisms. Also, Bem Ammar 44 proposed a usability model to evaluate those aspects in mobile apps generated using a model‐driven engineering tool, as a way to address some shortcomings of existing usability models. The author evaluates the usability of a mobile car rental system through several characteristics (eg, navigability, undo, etc.)…”

Section: Related Workmentioning

confidence: 99%

Usability implications in software architecture: The case study of a mobile app

et al. 2020

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Usability is a highly desired but often ignored software quality. Effective user interfaces tend to increase learnability, effectiveness and user satisfaction. But usability is often neglected in the early stages of software development and is thus frequently not address in a system's architectural design. Furthermore, because usability is often neglected or deferred, it is difficult to estimate the effort specifically spent on adding or improving usability mechanisms in the software architecture and in code. In this work, we present a case study where we analyze the impact of introducing a variety of usability mechanisms to a mobile application and we report on the architectural changes that must be made in the software architecture to accommodate them. We also report on the additional code required to implement these usability mechanisms and we investigate the users' satisfaction of combining and using several usability mechanisms in a mobile application. Finally, we evaluated user responses—both positive and negatives—to these usability mechanisms via a questionnaire involving 25 users from different roles and different organizations and including contextual interviews to analyze the qualitative responses of the subjects. Our results show that apart from the relatively modest modeling and coding effort, the combination of several usability mechanisms seems beneficial for users of mobile systems and increases the satisfaction during the interaction with the system.

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Section: Related Workmentioning

confidence: 99%

Usability implications in software architecture: The case study of a mobile app

et al. 2020

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“…According to Ammar (2019), usability is considered as a determinant factor for the success or failure of mobile apps. The concept of usability is divided into four sub-characteristics:…”

Section: Usability Testmentioning

confidence: 99%

Design and Development of Mobile Application for Academic Reminder System

Mustapa

2020

JCRINN

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The Academic Reminde r System is built to help users, which focuses for the students in UiTM Tapah to manage their scheduled class and assignment deadline via their mobile smartphones. The application was built for android - based platform. The user only needs to update their schedule after getting logged into the system and list any important date for their assignment deadline to the system . Then , the system will give an alert to remind the user for the upcoming class and task deadline. The System Development Life Cycle (SDLC) which is the waterfall model has been chosen as the methodology for this project that containing five phases. The result of the discussion shows that Academic Reminder System receives positive feedback through usability testing that has been completed. A total 30 students completed the usability survey and 46.7% of respond ent are strongly agreed that this application meet s their satisfaction with interface, usability, and performance. Future work recommendation for this project is to make a sharing application tool in the system so that the user can simply share the applica tion to their friends . Besides that, the application can engage with new technology, which is using near - field communication (NFC) in the log in page to easier for students log into the system.

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“…Grey boxes represent existing elements that are extracted from our previous work (Ammar, 2019). The others represent new elements introduced through our proposal.…”

Section: Mobile Usability Evaluation Process: a Brief Reviewmentioning

confidence: 99%

“…This step usually uses an agreed usability model as a catalog from which attributes and metrics are selected. We proposed in previous work (Ammar, 2019) a usability model that can be used to measure the usability of a mobile application. In this model, the usability concept is dividing into four subcharacteristics: Learnability, Understandability, Operability, and Attractiveness.…”

Section: Attributes Selectionmentioning

confidence: 99%

“…After selecting the usability attributes to be measured during the evaluation process, the next step is to select one or more metrics from those associated with each attribute. As is mentioned before, a set of usability metrics is proposed in (Ammar, 2019). Recall that metrics are defined generically based on the conceptual primitives that constitute the conceptual models.…”

Section: Metric Selectionmentioning

confidence: 99%

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Towards a prior validation of a model-based approach for mobile usability evaluation

Ammar¹

2020

Int. j. adv. appl. sci.

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Recently, evaluating the usability of mobile applications is gaining a lot of attention. The interest is focused on the user interface design choices that may lead to the rejection of the application. The evaluation is usually performed at the last stage of the development life cycle when the system is fully implemented. At this stage, it is difficult/expensive to go back to the design and make the required changes to solve usability issues. This problem may be alleviated by using the Model-Driven Engineering (MDE) approach, where conceptual models (elaborated at the design phase) undergo a series of transformations to generate the final applications, as automatically as possible. The transformation process establishes a mechanism of traceability between these conceptual models and the final application. Due to this mechanism, the analysis of these models to improve their usability is likely to preserve this usability at the final application or improve it. The present paper presents a model-based approach to evaluate the usability of mobile applications in the design phase. The proposed approach provides a set of usability metrics that are defined based on conceptual primitives that constitute the conceptual models. The objective is to allow the measurement of usability issues from the conceptual models. Prior validation of our proposal is presented in this paper.

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A Usability Model for Mobile Applications Generated with a Model-Driven Approach

Cited by 10 publications

References 10 publications

Usability implications in software architecture: The case study of a mobile app

Usability implications in software architecture: The case study of a mobile app

Design and Development of Mobile Application for Academic Reminder System

Towards a prior validation of a model-based approach for mobile usability evaluation

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