Although the research on the technology acceptance model (TAM) has received much attention, limited research has been done on the role of self-image congruence on the mobile application (app) intention to use. Therefore, leveraging the lens of the self-congruence theory, the primary objective of the present research is to examine the impact of self-image and functional congruence on the mobile app intention to use. We conduct a survey and collect 349 responses from Chinese smartphone users. The results of the current research reveal that self-image congruence is positively significantly related to mobile app intention to use. Also, our findings show that symbolic congruence is a vital determinant of the mobile app intention to use among Chinese smartphone users. Overall, the present study extends the understanding of TAM and concludes that symbolic congruence, such as functional attributes, is equally essential for technology intention to use. Moreover, this study extends the TAM and self-congruence theory literature by empirically investigating and validating the conceptual framework. The present study highlights the significance of self-image congruence to understand the user mobile app adoption behavior better. It provides important knowledge for the app developers, researchers, policymakers, and marketing managers of the famous social commerce and popular brand apps.

Enterprise social media (ESM) has been widely adopted by firms for employee work-related communication. However, it is still debatable how such usage benefits work stress and employee work efficiency. Applying the transactional theory of stress, this study examined the impact of resilience as a moderator on the link between work stressors and individual work efficiency. A total of 285 entries were used to analyze the proposed hypothesis, using structural equation modeling (SEM) technique and hierarchical regression analysis on SPSS 21.0 and AMOS 21.0 software. According to the findings, ESM use has a considerable impact on work stresses (challenge and hindrance). The findings also revealed that challenge stressors have a beneficial influence on employee work efficiency, while hindrance stressors have a negative impact on it. Furthermore, the results also indicated that resilience strengthens the positive relationship between challenge-stressed employees and work efficiency. However, the findings also revealed that resilience reduces the negative association between hindrance-stress and work efficiency. Finally, the author also explored the study's implications for theory and management.

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Given the broad applications of service-oriented architecture (SOA) in service-oriented software engineering, service-based systems (SBSs) built from existing Web services are becoming increasingly popular. As a result, the selection of the appropriate component services to include in SBSs has become a crucial step in the SBS-engineering process. Unfortunately, most of the existing methods require that system engineers have a detailed knowledge of the corresponding SOA techniques, which can incur several limitations, including excessively demanding development conditions and a lengthy development cycle. To address this issue, we propose to use subgraph queries for SBSs (SQS), which is an efficient approach that allows system engineers to build SBSs based on previous development experience. The SQS converts the SBS engineering problem into a subgraph isomorphism problem and uses a customized algorithm inspired by the VF2 algorithm to build SBSs with quality constraints and optimization goals for system quality. The SQS offers a new paradigm for efficient SBS engineering that significantly reduces the time and effort required in the system-engineering process. We discuss a series of experiments that use two real-world Web service datasets to demonstrate the practicality, effectiveness, and efficiency of this approach.

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