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dc.contributorFaculty of Humanitiesen_US
dc.contributor.advisorFeng, Dezheng William (ENGL)-
dc.contributor.advisorWu, Doreen (CBS)-
dc.creatorXu, Yan-
dc.identifier.urihttps://theses.lib.polyu.edu.hk/handle/200/10500-
dc.languageEnglishen_US
dc.publisherHong Kong Polytechnic University-
dc.rightsAll rights reserveden_US
dc.titleInterdiscursivity, multimodality and corporate communication on social media : a social semiotic analysis of courier companies' weibo postsen_US
dcterms.abstractSocial media have reshaped the landscape of corporate communication dramatically (S. Kim, Kim, & Hoon Sung, 2014), so corporate posts have been a central site of investigation (Cvijikj & Michahelles, 2013, Dolan, Conduit, Fahy, & Goodman, 2017). The present study takes a social semiotic approach to investigate the interdiscursive and multimodal features of corporate posts on social media. Drawing upon Matthiessen's (2009, 2015) register typology, a systematic analytical framework is developed to explicate the realization of interdiscursivity by identifying socio-semiotic activities in multimodal discourse. Visual grammar (Kress & van Leeuwen, 2006) is adopted in the analysis of visual realization of socio-semiotic activities. A corpus of 687 corporate posts from the five top courier companies in China are collected from Sina Weibo. The posts can be grouped into three major categories. The first and most prevalent category is Corporate Reporting Posts, which are formed by "reporting (text and image) + sharing/recreating/exploring (text)", giving rise to personalized, recreationalized and declarative reporting. The second category is Corporate Sharing Posts, which are formed by "sharing (text) + recreating (image)" and serve to personify courier brands to share values and experiences like a good friend. The last category is Corporate Promoting Posts, which are formed by "promoting (text + image) + sharing (text)/recreating (image)" and present personalized and entertaining advertisements.en_US
dcterms.abstractIn terms of visual realization, it is found that the four types of socio-semiotic activities, namely, reporting, sharing, promoting and recreating, are realized by different image types. Specifically, visual reporting is primarily realized by photos of courier staff, corporate events and relevant objects; visual sharing is realized by photos showing images representing or complementing values or experiences shared in textual messages, staff posters showing courier staff's refection, stock images creating artistic effect and textual images of inspirational messages; visual promoting is realized by advertising posters designed to visualize what can be delivered by courier service; visual recreating is largely realized by cartoon images depicting cute courier boys. By the frequent mixture of the five socio-semiotic activities, corporate Weibo posts are utilized as a multi-functional communication tool to build corporate identity, to maintain a good relationship with online followers, and to promote courier service/companies. Specifically, reporting and exploring activities function to build positive corporate identity by presenting corporate ability and corporate social responsibility, and to build positive staff identity by presenting staff achievements, delivery activities and staff's moral deeds. Sharing and recreating activities function to maintain a good relationship with online followers by personifying courier brands and creating entertainment. Promoting activities function to promote courier service and courier companies in an emotionalized or entertaining way. The research findings are significant both theoretically and practically. On the one hand, it develops a systematic framework to explicate interdiscursivity as manifested in visual resources as well as linguistic resources, furthering our understanding of this concept in multimodal discourse. On the other hand, it generates general patterns of interdiscursivity, which not only helps communication scholars categorize corporate posts in content analysis, but also provides guidance to communication practitioners for the design of corporate posts.en_US
dcterms.extentxviii, 309 pages : color illustrationsen_US
dcterms.isPartOfPolyU Electronic Thesesen_US
dcterms.issued2020en_US
dcterms.educationalLevelDALSen_US
dcterms.educationalLevelAll Doctorateen_US
dcterms.LCSHSemioticsen_US
dcterms.LCSHSocial media -- Social aspectsen_US
dcterms.LCSHDiscourse analysisen_US
dcterms.LCSHHong Kong Polytechnic University -- Dissertationsen_US
dcterms.accessRightsrestricted accessen_US

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Please use this identifier to cite or link to this item: https://theses.lib.polyu.edu.hk/handle/200/10500