L'utilisation croissante des sites en web 2.0 sur internet a favorisé l'utilisation des outils du Web 2.0 par de nombreuses organisations à travers le monde. L’un des outils les plus largement utilisés aujourd’hui dans les organisations est la technologie Wiki, et ce tout particulièrement dans la gestion de projet. Parce qu’un nombre croissant d’organisations déploie des systèmes Wiki et que le Web 2.0 fait encore l’objet d’un véritable battage médiatique, il est important de travailler sur ces technologies collaboratives et de mesurer leur succès en termes d’utilisation dans l’environnement de l’organisation. Cette étude traite de l’utilisation de la technologie Wiki dans les entreprises et du besoin de développer cette technologie. Il s’agit également de déterminer comment mesurer le succès des systèmes wiki internes du point de vue des « end-users ». La littérature sur les systèmes Wiki publics et d’entreprise est également présentée. Cette étude propose un modèle théorique de recherche sur le succès des wikis internes des entreprises, fondé sur la précédente théorie sur le succès des systèmes d’information. Enfin, le modèle proposé est testée empiriquement et les déterminants importants du succès des wikis interne des entreprises sont présentés / With the ever increasing use of Web 2.0 sites on the internet, the use of Web 2.0 based tools has been employed by the organizations across the globe. One of the most widely used Web 2.0 tool in organizations is the wiki technology particularly in project management. Since growing number of organisations are deploying wiki systems as Web 2.0 still remains a hype, it is important to investigate into these collaborative technologies and measure the success in corporate environment usage. In this study, we discuss the use of Wiki technology in the enterprise setting, the need for wiki deployment and how can we measure the success of corporate wiki systems from end-user’s perspective. The literature on corporate and public wiki systems is also presented. The paper presents a theoretical research model of enterprise wiki systems’ success based on the previous IS success theory. Finally, the research model of corporate Wiki success is empirically tested and the important determinants of corporate Wiki systems are presented

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A social media stream allows users to share user-generated content as well as aggregate different external sources into one single stream. In Enterprise 2.0 such social media streams empower co-workers to share their information and to work efficiently and effectively together while replacing email communication. As more users share information it becomes impossible to read the complete stream leading to an information overload. Therefore, it is crucial to provide the users a personalized stream that suggests important and unread messages. The main characteristic of an Enterprise 2.0 social media stream is that co-workers work together on projects represented by topics: the stream is topic-centered and not user-centered as in public streams such as Facebook or Twitter. A lot of work has been done dealing with recommendation in a stream or for news recommendation. However, none of the current research approaches deal with the characteristics of an Enterprise 2.0 social media stream to recommend messages. The existing systems described in the research mainly deal with news recommendation for public streams and lack the applicability for Enterprise 2.0 social media streams. In this thesis a recommender concept is developed that allows the recommendation of messages in an Enterprise 2.0 social media stream. The basic idea is to extract features from a new message and use those features to compute a relevance score for a user. Additionally, those features are used to learn a user model and then use the user model for scoring new messages. This idea works without using explicit user feedback and assures a high user acceptance because no intense rating of messages is necessary. With this idea a content-based and collaborative-based approach is developed. To reflect the topic-centered streams a topic-specific user model is introduced which learns a user model independently for each topic. There are constantly new terms that occur in the stream of messages. For improving the quality of the recommendation (by finding more relevant messages) the recommender should be able to handle the new terms. Therefore, an approach is developed which adapts a user model if unknown terms occur by using terms of similar users or topics. Also, a short- and long-term approach is developed which tries to detect short-term interests of users. Only if the interest of a user occurs repeatedly over a certain time span are terms transferred to the long-term user model. The approaches are evaluated against a dataset obtained through an Enterprise 2.0 social media stream application. The evaluation shows the overall applicability of the concept. Specifically the evaluation shows that a topic-specific user model outperforms a global user model and also that adapting the user model according to similar users leads to an increase in the quality of the recommendation. Interestingly, the collaborative-based approach cannot reach the quality of the content-based approach.

Wiki är en applikation där kunskap kan utbytas mellan användarna på ett säkert sätt och som möjliggör att idéflödet ökar på företag vilket kan leda till att en stor kunskapsbank skapas. Syftet med denna studie är att ge svar på hur kunskapsdelning sker mellan människor med hjälp av Wiki och varför användandet av Wiki skiljer sig mellan olika användare. Kandidatuppsatsen har utförts på olika it/logistik företag i Kronobergs region. Studien har utförts genom en kvantitativ metod och baseras på UTAUT (Unified theory of acceptance and use of technology) modellen.  Resultatet analyserar faktorer som påverkar användarnas motivation och Wikis användbarhet till kunskapsdelning som verktyg. Slutsatsen besvarar frågeställningen som ställs i syftet, om varför användandet av Wiki skiljer sig mellan användarna, vilket visade sig ha en koppling till ledningens stöd/feedback. / Wiki is a type of collaboration website that allows users to upload, edit, and remove content present on a webpage. The goal of this study is to form a comprehensive meaning, definition, or answer on a specific subject matter. The aim of Wiki is sharing information between users, creating new ideas and building database of knowledge. The study was conducted among it/logistics companies in Kronoberg region. It’s aim is to provide answer on how is this sharing of information between users carried out and why it is different between different users and establishing what factors have a significant effect on this exchange. The study was performed using quantitive methods and are based on UTAUT (Unified theory of acceptance and use of technology) model. The results of the study analyse factors that significantly affect motivation to sharing knowledge and its flow between users and what organizations have to know when they decide to create knowledge database, what factors affect sharing knowledge and how motivation influence creating new content and sharing knowledge.

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A social media stream allows users to share user-generated content as well as aggregate different external sources into one single stream. In Enterprise 2.0 such social media streams empower co-workers to share their information and to work efficiently and effectively together while replacing email communication. As more users share information it becomes impossible to read the complete stream leading to an information overload. Therefore, it is crucial to provide the users a personalized stream that suggests important and unread messages. The main characteristic of an Enterprise 2.0 social media stream is that co-workers work together on projects represented by topics: the stream is topic-centered and not user-centered as in public streams such as Facebook or Twitter. A lot of work has been done dealing with recommendation in a stream or for news recommendation. However, none of the current research approaches deal with the characteristics of an Enterprise 2.0 social media stream to recommend messages. The existing systems described in the research mainly deal with news recommendation for public streams and lack the applicability for Enterprise 2.0 social media streams. In this thesis a recommender concept is developed that allows the recommendation of messages in an Enterprise 2.0 social media stream. The basic idea is to extract features from a new message and use those features to compute a relevance score for a user. Additionally, those features are used to learn a user model and then use the user model for scoring new messages. This idea works without using explicit user feedback and assures a high user acceptance because no intense rating of messages is necessary. With this idea a content-based and collaborative-based approach is developed. To reflect the topic-centered streams a topic-specific user model is introduced which learns a user model independently for each topic. There are constantly new terms that occur in the stream of messages. For improving the quality of the recommendation (by finding more relevant messages) the recommender should be able to handle the new terms. Therefore, an approach is developed which adapts a user model if unknown terms occur by using terms of similar users or topics. Also, a short- and long-term approach is developed which tries to detect short-term interests of users. Only if the interest of a user occurs repeatedly over a certain time span are terms transferred to the long-term user model. The approaches are evaluated against a dataset obtained through an Enterprise 2.0 social media stream application. The evaluation shows the overall applicability of the concept. Specifically the evaluation shows that a topic-specific user model outperforms a global user model and also that adapting the user model according to similar users leads to an increase in the quality of the recommendation. Interestingly, the collaborative-based approach cannot reach the quality of the content-based approach.

Organizations over the world increasingly start to realize the possibilities of the use of a social intranet, also known as Enterprise 2.0. The social intranets can be used to collaborate and communicate with colleagues in the workplace. Both Cook (2008) and Coope (Barnett, 2011) say that Enterprise 2.0 is about to fundamentally change the way organizations communicate. But do companies know how these tools can be used? The study emanates from three questions: How can social intranets be used in business? How can internal communication and collaboration get easier through the use of a social intranet? What are the possible risks with the use of social intranets? In this study we have in a qualitative manner been interviewing two companies that currently use social intranets in their daily activities – Securitas and Skåneme-jerier. The interviews where performed via telephone with two people familiar with the respective social intranets. We have also sent out a questionnaire via e-mail to a user group of each company's intranet, to gain knowledge of users' opi-nions. The interviews show that both companies agree that it is important for peers to communicate and exchange information and knowledge with each other. The so-cial intranets are used both for communication, collecting employees' knowledge, and to ease the employees information need by gathering all information at the same place. Respondents also pointed out the advantage of written information and knowledge. As it is written it is also searchable. It will also remain in the organiza-tion even though the creator might leave the company. The fact that all users can edit for example wikis and files on the intranet can be used to keep information up to date. / Organisationer börjar i allt större grad inse möjligheterna med att använda sociala intranät, också kallat Enterprise 2.0, för att samarbeta och kommunicera i arbetet. Både Cook (2008) och Coope (Barnett, 2011) menar att Enterprise 2.0 är på väg att fundamentalt ändra de sätt som en organisation kommunicerar på. Användningen av sociala verktyg, som till exempel ett socialt intranät, breder ut sig i företag världen över. Även i Sverige ökar användningen, men hur används egentligen dessa intranät? Studien tar utgångspunkt i tre frågor: Hur kan sociala intranät användas i företag? Hur kan sociala intranät användas för att underlätta intern kommunikation och samarbeten inom företag? Vilka eventuella risker finns med användningen av sociala intranät?   I studien har vi valt att kvalitativt intervjua två företag som idag använder sociala intranät i sin dagliga verksamhet – Securitas och Skånemejerier. Vi genomförde telefonintervjuer med två personer insatta i arbetet med respektive socialt intranät. Vi har också skickat ut ett frågeformulär per e-post till en användargrupp av de båda företagens sociala intranät, för att få kunskap om användarnas åsikter. Både Securitas och Skånemejerier är överens om att det är viktigt att kollegor kommunicerar och utbyter information och kunskap med varandra. De sociala intranäten används bland annat för att samla in de anställdas kunskap, i syfte att nå konkurrensfördelar.  Tanken är också att de anställda enkelt ska kunna finna all den information och hjälp de behöver på intranätet, för att kunna utföra sina dagliga affärsprocesser. Det anses också av respondenterna viktigt med en ”kommunikativ kultur” i organisationen, något som ett socialt intranät kan stödja. De anställda kan på ett enkelt sätt genom ett socialt intranät ventilera åsikter och utbyta information. De båda intranäten innehåller bloggar, forum, statusuppdateringar etcetera för att ge de anställda flera olika kanaler att använda beroende på situation. Respondenterna påpekade även fördelen med nedskriven information och kunskap. Genom att den är nedskriven är den även sökbar. Den kommer också att finnas kvar i organisationen trots att skaparen eventuellt lämnar företaget. Samtliga användare kan redigera exempelvis wikis och filer på intranätet, vilket gör att dessa behållas uppdaterade.

Social intranets have over the last few years gained momentum in popularity and are rapidly being implemented in organizations around the world. Research is mainly limited to consist of analyses of use of particular technologies, and is mostly conducted in relation to private organizations. This thesis provides an analysis of the implementation and use of a social intranet in a public organization. In February 2012, Uppsala municipality (Sweden) implemented their new social intranet Insidan for all their employees. The idea is of enhancing the everyday working context and to increase the participation throughout the organization. Wanda Orlikowski’s theory of the practice lens is applied to situate and understand the role of the intranet. The practice lens is relevant as it acknowledges human agency, context and the technological inscriptions to understand the role of technology in organizations. The findings are further elaborated in relation to Andrew McAfee’s Enterprise 2.0. Interviews with users, management and designers, as well as document analysis are used to extract data in a case study design. The results show that Insidan contains central aspects of what constitutes a social intranet. The practice of Insidan enhances user aspects of communication, collaboration and cooperation. One technological feature, the cooperation room, is especially successful. It is a space wherein user share documents and talk openly in a semi-private environment. However, other tools, like blogs, are not adapted to any significant level. Perceived benefits for personal work is relevant to adoption. Findings on insecurity towards what is appropriate to contribute as content are seen to limit active user participation in conversations. Role models for activity are called for. Users are more confident to converse in closed groups. Thus, social connections and communication are given a new arena, but it often takes place in familiarized circles of people (e.g. project groups, office colleagues). This thesis provides knowledge and insights into an exciting and growing field of research. It also provides important insights from an implementation in a public organization – a context not extensively investigated.