Total Control of User Experience in Software Development a Software Engineering Dream?
Total control of User Experience in Software Development a Software Engineering dream?
Joerg Doerr
Fraunhofer IESE
Fraunhofer Platz 1
Joerg.Doerr@iese.fraunhofer.de Daniel Kerkow
Fraunhofer IESE
Fraunhofer Platz 1
Daniel.Kerkow@iese.fraunhofer.de
ABSTRACT
In this paper we present a preliminary version of a software engineering approach to gain control over the User Experience (UX) during development time. We show results of an exploratory study with 59 subjects, discovering correlations between quality attributes as introduced in ISO9126 and our construct of UX, which is derived from the construct of Quality in Use as described in ISO9126.
Author Keywords
Position paper, User Experience; ISO9126/25000; Software Quality; Nonfunctional requirements, Quality in Use
ACM Classification Keywords
H5.m. Information interfaces and presentation (e.g., HCI): Miscellaneous.
INTRODUCTION
In this paper we present a preliminary version of a software engineering approach to gain control over the User Experience (UX) during development time. We define the construct of UX in terms of a quality goal of a product, which manifests itself during the usage of the product. In ISO9126, as well as in the newer version the ISO 25000, this kind of quality is referred to as Quality in Use (QiU). We claim UX to be closely related to User Perceived QiU.
Software engineering aims to make the quality of software systems predictable in early phases of development and repeatable during the usage of these systems. Since we consider UX as a set of quality characteristics, these characteristics should be on the one hand measurable and on the other hand controllable during development time. ISO9126 [5] and [8] state that software quality can be measured and described via 1. Static measures of the software (internal quality), 2. behavior of code when executed (external quality) and 3. in use (quality in use). Basically, QiU- characteristics can not directly be manipulated during
Joerg Doerr
Fraunhofer IESE
Fraunhofer Platz 1
Joerg.Doerr@iese.fraunhofer.de Daniel Kerkow
Fraunhofer IESE
Fraunhofer Platz 1
Daniel.Kerkow@iese.fraunhofer.de
ABSTRACT
In this paper we present a preliminary version of a software engineering approach to gain control over the User Experience (UX) during development time. We show results of an exploratory study with 59 subjects, discovering correlations between quality attributes as introduced in ISO9126 and our construct of UX, which is derived from the construct of Quality in Use as described in ISO9126.
Author Keywords
Position paper, User Experience; ISO9126/25000; Software Quality; Nonfunctional requirements, Quality in Use
ACM Classification Keywords
H5.m. Information interfaces and presentation (e.g., HCI): Miscellaneous.
INTRODUCTION
In this paper we present a preliminary version of a software engineering approach to gain control over the User Experience (UX) during development time. We define the construct of UX in terms of a quality goal of a product, which manifests itself during the usage of the product. In ISO9126, as well as in the newer version the ISO 25000, this kind of quality is referred to as Quality in Use (QiU). We claim UX to be closely related to User Perceived QiU.
Software engineering aims to make the quality of software systems predictable in early phases of development and repeatable during the usage of these systems. Since we consider UX as a set of quality characteristics, these characteristics should be on the one hand measurable and on the other hand controllable during development time. ISO9126 [5] and [8] state that software quality can be measured and described via 1. Static measures of the software (internal quality), 2. behavior of code when executed (external quality) and 3. in use (quality in use). Basically, QiU- characteristics can not directly be manipulated during
References: 1. Kerkow, D., Doerr, J., Paech, B., Olsson, T., Koenig, T., "Elicitation and Documentation of Non-functional Requirements for Sociotechnical Systems" in José Luis Maté, Andrés Silva, "Requirements Engineering for Sociotechnical Systems", Idea Group, Inc., 2004 2. Doerr, J., Kerkow, D., von Knethen, A., Paech, B., „Eliciting Efficiency Requirements with Use Cases", 9th International Workshop on Requirments Engineering – Foundation for Software Quality, Workshop held at CaiSE '03, June 2003, pp. 23-32. 3. Kerkow, D., Kohler, K., Doerr, J., "Usability and Other Quality Aspects Derived from Use Cases" Performance by Design. Proceedings of forUSE 2003, Second International Conference on Usage-Centered (2003), pp. 135-154. 4. Chung, L., Nixon, B.A., Yu, E., Mylopoulos, J.,"NFR in Software Engineering", Kluwer Academic Publishers, 2000 5. ISO/IEC 9126:2001(E), "Software Engineering - Product Quality - Part 1-4, 2001 6. Davis, F.D. (1989) "Perceived Usefulness, Perceived Ease of Use, and User Acceptance of Information Technology" MIS Quarterly 13(3), pp. 319-340. 7. Lee Y., Kozar K.A., and Larsen K. R. T., (2003), "The Technology Acceptance Model: Past, Present, and Future". Communications of the Association for Information Systems (Volume 12, Article 50) 752-780 8. Bevan, N. (1999). Quality in use: Meeting user needs for quality. Journal of Systems and Software 49(1): 89-96.