Theses and articles - Cloud Software Program

Involving Users in service co-creation

Published by: TolgaTuncbilek Last modified: 2012.09.11

Experiences of Online Co-creation with End Users of Cloud Services

Published by: TolgaTuncbilek Last modified: 2012.09.11

Kaarina Karppinen1, Kaisa Koskela1, Camilla Magnusson2, and Ville Nore2
1 VTT Technical Research Centre of Finland, Kaitoväylä 1, 90570 Oulu, Finland
[email protected], [email protected]
2 F-Secure Ltd. Tammasaarenkatu 7, 00180 Helsinki, Finland
[email protected], [email protected]

Abstract. This paper describes an online co-creation study done via an online co-creation platform Owela as well as shares industrial experiences and lessons learnt about the study. The Owela study was conducted in order to provide a deeper understanding of users’ perceptions of cloud services and their security. By utilising the online co-creation platform it was possible to get quick and easy contact to geographically distributed cloud service users. For the company Owela offered an efficient way to apply online user participation while for the end users Owela enabled convenient participation in various co-creation activities regardless of time and place. As an end result of the study the voice of the cloud service users was turned into several new business ideas.

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Differentiation in the cloud: methodology for integrating customer values in experience design

Published by: TolgaTuncbilek Last modified: 2012.09.11

Sirotkin Andrey
Software technology
VTT Technical Research Centre of
Finland
Oulu, Finland
e-mail: [email protected]
Koskela-Huotari Kaisa
Software technology
VTT Technical Research Centre of
Finland
Oulu, Finland
e-mail: kaisa.koskelahuotari@
vtt.fi
Karppinen Kaarina
Software technology
VTT Technical Research Centre of
Finland
Oulu, Finland
e-mail: [email protected]
Del Ser Javier
Wireless Communications &
Algorithms
Tecnalia Research & Innovation
Bizkaia, Spain
e-mail: [email protected]
McCabe Bronan
Module Leader
Oxford Brookes University
Oxford, UK
[email protected]
Abstract— How do organizations know they are designing products and services that their customers will value? This paper describes the initial results of the first four stages of a methodology for integrating customer Values in Experience design (ViEx). The theory of universal value structure was adapted to examine customer values in two contexts: online interaction (N=725) and shopping experience (N=742). The principle component analysis was used to identify the values structure in each context. The components represented persona dimensions and their relative order of importance characterized individual customers. The commonalities of the persona dimensions preferences were analyzed and customers were grouped by dimension preferences. Finally, the valuesbased persona descriptions were developed and complemented with demographic data and information from context-specific questions. The paper concludes with application of methodology to differentiation strategies in highly competitive business environments such as the cloud. The research also contributes to the discussion of values in context.

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Article: User Experience Design Goes Agile in Lean Transformation - A Case Study

Published by: AriTurunen Last modified: 2012.09.17

This paper describes the results of a single-case case study, exploring the role of user experience (UX) work in agile software development. The case study company is a large multinational telecommunication company undergoing a lean transformation process. In this case, lean transformation includes the adoption of agile software development practices. Transformation to agile practices had taken place one year prior to the analysis. The analysis is based on documentation analysis and semi-structured interviews of seven software development professionals. The results show that there were difficulties integrating UX design and software engineering work in an agile and iterative manner. The transition process succeeded in shifting UX and related documentation to a central planning role. The roles of the UX designers in the teams were still under re-definition. There was also a clear need to establish new ways of collaboration between UX professionals and software designers.

Authors:

Minna Isomursu, Andrey Sirotkin
VTT Technical Research Centre of Finland
Oulu, Finland

Petri Voltti, Markku Halonen
Nokia Corporation
Oulu, Finland

Presented in Agile 2012 Conference

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MOBILE COMPUTATION OFFLOADING - FACTORS AFFECTING TECHNOLOGY EVOLUTION

Published by: TolgaTuncbilek Last modified: 2012.09.10

Juntunen, Antero, Aalto University, PO Box 15400, FI-00076 AALTO, Finland,
[email protected]
Kemppainen, Matti, Aalto University, PO Box 15400, FI-00076 AALTO, Finland,
[email protected]
Luukkainen, Sakari, Aalto University, PO Box 15400, FI-00076 AALTO, Finland,
[email protected]

Abstract
Compared to desktop devices, mobile devices have inherent constraints such as limited processing power, memory, and battery capacity. With the proliferation of resource-hungry applications, researchers are looking for new solutions to address these limitations. One such solution is mobile cloud computing (MCC), which uses cloud infrastructure to enhance the capabilities of mobile devices. This paper focuses on a related, emerging technology called mobile computation offloading (MCO), where the emphasis is on dynamically offloading computation from native applications running on mobile devices to outside surrogates such as cloud infrastructure. We use an exploratory approach to evaluate the business potential of MCO by identifying critical factors that influence the technology evolution of MCO. We base this evaluation on a literature review of MCO and utilize a research framework derived from the existing literature on technology evolution and MCO.

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Secure Networking for Virtual Machines in the Cloud

Published by: TolgaTuncbilek Last modified: 2012.09.10

Miika Komu, Mohit Sethi, Ramasivakarthik Mallavarapu, Heikki Oirola and Rasib Khan
Aalto University, Department of Computer Science and Engineering
[email protected]
Sasu Tarkoma
University of Helsinki
[email protected]

Abstract—Cloud computing improves utilization and flexibility of allocating computing resources while reducing the infrastructural costs. However, cloud technology is still proprietary in many cases and is tainted by security issues rooted in the multi-tenant environment of the cloud. For instance, the virtual machines of two competing companies could be served by the same underlying host machine in an Infrastructure as a Service (IaaS) type of cloud and this represents a security threat to be addressed. As a solution to this multi-tenancy problem, the Host Identity Protocol (HIP) offers a standardized way to authenticate and protect data flows between tenants belonging to the same security domain. In this paper, we have experimented with HIP in order to address the multi-tenant challenges for public and hybrid IaaS clouds. In our design, developers and administrators can access cloud services directly over HIP, whereas consumers access the cloud without HIP using a reverse HTTP proxy. The proxy also acts as a load balancer for a distributed test service deployed both in an EC2 public cloud and a private cloud. The performance of the system offers efficiency comparable to SSL and essentially utilizes the same cryptographic algorithms with similar processing costs. Consequently, this implies that the proposed scheme is a viable alternative to mitigate some of the privacy issues related to multi-tenancy within a single data center and to secure communications between two clouds in the case of a hybrid cloud.

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