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CHIMIT Tables of Contents: 0708091011

Proceedings of the 2011 Symposium on Computer Human Interaction for the Management of Information Technology

Fullname:Proceedings of the 2011 Symposium on Computer Human Interaction for the Management of Information Technology
Editors:Adam Moskowitz; Kirstie Hawkley; Konstantin Beznosov; Paul Anderson
Location:Cambridge, Massachusetts
Dates:2011-Dec-04 to 2011-Dec-05
Standard No:ISBN: 1-4503-0756-6, 978-1-4503-0756-7; ACM DL: Table of Contents hcibib: CHIMIT11
Links:Conference Home Page
Understanding and improving the diagnostic workflow of MapReduce users BIBAFull-Text 1
  Jason D. Campbell; Arun B. Ganesan; Ben Gotow; Soila P. Kavulya; James Mulholland; Priya Narasimhan; Sriram Ramasubramanian; Mark Shuster; Jiaqi Tan
New abstractions are simplifying the programming of large clusters, but diagnosis nonetheless gets more and more challenging as cluster sizes grow: Debugging information increases linearly with cluster size, and the count of intercomponent relationships grows quadratically. Worse, the new abstractions which simplified programming can also obscure the relationships between high-level (application) and low-level (task/process/disk/CPU) information flows. In this paper we analyze the workflow of several users and systems administrators connected with a large academic cluster (based the popular Hadoop implementation of the MapReduce abstraction) and propose improvements to the diagnosis-relevant information displays. We also offer a preliminary analysis of the efficacy of the changes we propose that demonstrates a 40% reduction in the time taken to accomplish 5 representative diagnostic tasks as compared to the current system.
Description and application of core cloud user roles BIBAFull-Text 2
  Terry Bleizeffer; Jeffrey Calcaterra; Deepa Nair; Randy Rendahl; Birgit Schmidt-Wesche; Peter Sohn
At IBM, we developed a set of user roles that describe the tasks of the people who interact with any cloud based Information Technology system. The three core roles of Cloud Service Creator, Cloud Service Provider, and Cloud Service Consumer create the base for reflecting the close interaction between developers, providers, and consumers in order to achieve the optimum service flow. The development of a single role as well as the entire taxonomy of roles is guided by a framework of governing principles.
   Our paper will first present an overview of the user roles and basic framework. Then we will present a series of examples and best practices for interpreting and applying the roles in the design and operation of cloud computing solutions.
Information needs of system administrators in information technology service factories BIBAFull-Text 3
  Cleidson R. B. de Souza; Claudio S. Pinhanez; Victor F. Cavalcante
In this paper we describe the results of an empirical study about the information needs of system administrators. This study is based on an electronic survey with more than 200 systems administrators, or sysadmins, working on incident management in a large scale IT service delivery organization. The survey covered their information needs in both complex and routine situations. The results of the survey described in this paper go beyond previous work on system administrators by presenting a much more complex picture, suggesting that sysadmins make low usage of knowledge management tools; largely adopt personal communication and collaboration tools: and finally, need to gather information about customers from a complex set of stakeholders. The system administrators also indicated in our survey that the most useful sources of information in handling complex incidents are: (i) the customer; (ii) the customer account team; and (iii) other employees who were experts both in the customer and in particular aspects of the delivery of services. This study indicates that knowledge management in IT service factories is very challenging and possibly should evolve from the often adopted passive model to a dynamic knowledge management style emphasizing both knowledge reusability through information technologies and knowledge sharing through informal discussions among employees.
Third-party apps on Facebook: privacy and the illusion of control BIBAFull-Text 4
  Na Wang; Heng Xu; Jens Grossklags
Little research examines the privacy threats associated with the use of third-party apps on Facebook. To address this gap in the literature, we systematically study third-party apps' current practices for privacy notice and consent by: i) collecting data from the 1800 most popular Facebook apps to record their data collection practices concerning users and their friends, and ii) developing our own Facebook app to conduct a number of tests to identify problems that exist in the current design of authentication dialogs for third-party apps on Facebook. To address these problems, we propose two new interface designs for third-party apps' authentication dialogs to: i) increase user control of apps' data access and restrict apps' publishing ability during the process of adding them to users' profiles, and ii) alert users when their global privacy settings on Facebook are violated by apps. This research provides both conceptual and empirical insights in terms of design recommendations to address privacy concerns toward third-party apps on Facebook.
What a webserver can learn from a zebra and what we learned in the process BIBAFull-Text 5
  Johan Finstadsveen; Kyrre Begnum
As computer systems, services and networks evolve, the complexity of the systems is increasing. Tools and metaphors that we used to manage the small collection of servers do not scale to support this growing complexity. By looking at the animal kingdom, our most intriguing autonomic system, we are able to create an abstraction which provides for greater clarity on system behavior and management, allowing us to design and implement decision making processes into our systems.