Agile elicitation of scalability requirements for open systems: A case study

Brataas, Gunnar; Martini, Antonio; Hanssen, Geir Kjetil; Raeder, G.

doi:10.1016/j.jss.2021.111064

Cited by 11 publications

(3 citation statements)

References 29 publications

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“…Based on our experience with innovative software engineering processes, we believe that an agile approach would be fruitful. Iterations and increments simplify development and synchronous clarification of functional and commonly under-focused quality requirements, e.g., as addressed by Brataas et al [19].…”

Section: Discussionmentioning

confidence: 99%

Requirements Engineering in the Market Dialogue Phase of Public Procurement: A Case Study of an Innovation Partnership for Medical Technology

Brataas

Hanssen

Qiu

et al. 2022

Requirements Engineering: Foundation for Software Quality

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Context and Motivation: In 2016, the European Union introduced ‘innovation partnerships’ to facilitate innovative development of the EU through public procurement. Requirements engineering is one of the main challenges in the public procurement of innovative products. Nevertheless, there is little empirical research on public procurement, particularly managing requirements in the pre-tender dialogue phase between potential suppliers and problem owners.Question/Problem: This paper investigates the market dialogue phase of an innovation partnership project in Norway. We aim to understand critical factors of the dialogue phase that clarify and focus needs and requirements. This leads to the research question: How can we clarify and focus needs and requirements for a new solution in the market dialogue phase?Principal Ideas/Results: We have conducted a case study at a major Norwegian hospital. The objective of this innovation partnership is to make the emergency room in a Norwegian hospital more efficient. The case study illustrates how requirements have been developed by the joint effort of the procurement team, the active engagement of potential suppliers, and the learning and mutual trust between them. By discussing the vision and getting feedback on opportunities and limitations in existing and projected technologies, the procurement team has refined their ambition and focused on the core of the innovation.Contribution: This paper contributes to the literature on requirement engineering in public procurement by describing how requirements are focused during the dialogue phase of an innovation partnership facilitated by a cross-functional procurement team with sufficient competencies, resources, and trust.

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Section: Discussionmentioning

confidence: 99%

Requirements Engineering in the Market Dialogue Phase of Public Procurement: A Case Study of an Innovation Partnership for Medical Technology

Brataas

Hanssen

Qiu

et al. 2022

Requirements Engineering: Foundation for Software Quality

Self Cite

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“…A similar definition, although formulated inversely, is used in multiple publications of the "CloudScale" project (Lehrig et al 2015;Brataas et al 2017;Brataas et al 2021). They define scalability as "a system's ability to increase its capacity by consuming more resources" (Brataas et al 2021), where capacity describes the maximum load the system can handle while fulfilling all "quality thresholds". Here, the notion of quality thresholds corresponds to what Weber et al (2014) and others call SLOs.…”

Section: Scalability In Cloud Computingmentioning

confidence: 99%

A configurable method for benchmarking scalability of cloud-native applications

Henning

Hasselbring

2022

Empir Software Eng

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Cloud-native applications constitute a recent trend for designing large-scale software systems. However, even though several cloud-native tools and patterns have emerged to support scalability, there is no commonly accepted method to empirically benchmark their scalability. In this study, we present a benchmarking method, allowing researchers and practitioners to conduct empirical scalability evaluations of cloud-native applications, frameworks, and deployment options. Our benchmarking method consists of scalability metrics, measurement methods, and an architecture for a scalability benchmarking tool, particularly suited for cloud-native applications. Following fundamental scalability definitions and established benchmarking best practices, we propose to quantify scalability by performing isolated experiments for different load and resource combinations, which asses whether specified service level objectives (SLOs) are achieved. To balance usability and reproducibility, our benchmarking method provides configuration options, controlling the trade-off between overall execution time and statistical grounding. We perform an extensive experimental evaluation of our method’s configuration options for the special case of event-driven microservices. For this purpose, we use benchmark implementations of the two stream processing frameworks Kafka Streams and Flink and run our experiments in two public clouds and one private cloud. We find that, independent of the cloud platform, it only takes a few repetitions (≤ 5) and short execution times (≤ 5 minutes) to assess whether SLOs are achieved. Combined with our findings from evaluating different search strategies, we conclude that our method allows to benchmark scalability in reasonable time.

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“…Other studies like Ortega et al (2020), Brataas et al (2021) and Amorim et al (2021) have also used the DSR and Agile Methodologies on ensuring a better solution to real‐life problems on software implementation. Based on the literature, the use of the DSR and Agile Methodologies in solving real‐life problems in Tanzania's HEIs context is scarce.…”

Section: Literature Reviewmentioning

confidence: 99%

The use of Design Science and Agile Methodologies for improved information systems in the Tanzanian Higher Education context

Kayanda

Busagala

Oyelere

et al. 2022

E J Info Sys Dev Countries

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There was no known effective approach to implementing information systems in Tanzanian Higher Education Institutions (HEIs) because the requirements of users change frequently and HEIs vary in their requirements. Theoretically, the agile software development process and Design Science Research (DSR) could deliver software that suits such a context, yet no testing had been done priorly. Therefore, this study aimed on investigating the suitability of the combination of Agile Methodologies and the DSR in developing information systems for Tanzania's HEIs. The study used eXtreme Programming as one of the Agile Methodologies and the DSR to develop a timetabling software which easily integrates into the existing academic information system of the College of Business Education for better decision making. Likewise, the evaluation of the developed artifact confirmed that the resulting product raised the user satisfaction with the information system in HEIs. In this regard, the current study advances the frontier of knowledge on using the DSR framework and Agile Methodologies in designing and developing software in Tanzania's HEIs and beyond.

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Agile elicitation of scalability requirements for open systems: A case study

Cited by 11 publications

References 29 publications

Requirements Engineering in the Market Dialogue Phase of Public Procurement: A Case Study of an Innovation Partnership for Medical Technology

Requirements Engineering in the Market Dialogue Phase of Public Procurement: A Case Study of an Innovation Partnership for Medical Technology

A configurable method for benchmarking scalability of cloud-native applications

The use of Design Science and Agile Methodologies for improved information systems in the Tanzanian Higher Education context

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