Browsing by Author "Wang, Xiaofeng"

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Benefits and Challenges of Adopting SAFe - An Empirical Survey
(2021) Putta, Abheeshta; Uludağ, Ömer; Paasivaara, Maria; Hong, Shun Long
A4 Artikkeli konferenssijulkaisussa
During the last two decades, turbulent business environments tempted firms to adopt agile methods to cope with the ever-changing customer demands. The success of agile methods in small and co-located teams inspired companies to apply them to large-scale endeavors. Agile scaling frameworks, such as the Scaled Agile Framework (SAFe), have been proposed by practitioners to scale agile practices to large projects and enterprises. Companies are increasingly taking these frameworks into use. However, the number of quantitative empirical studies assessing the benefits and challenges of adopting the agile scaling frameworks is still limited. This paper starts filling in this gap by presenting the results from a survey of 100 industry participants around the world on their perception of the benefits and challenges of adopting the SAFe framework. Our results show that the SAFe adoption improves transparency, as well as collaboration and dependency management between agile teams. The most commonly mentioned challenges of the SAFe adoption are organizational politics, difficulties in establishing an agile mindset, change resistance, and team formation challenges.
Collective consciousness in business ecosystems
(2018-01-15) Turunen, Marja; Mäntymäki, Matti
A3 Kirjan tai muun kokoomateoksen osa
This paper presents collective consciousness as a lens through which to analyze the psycho-social dynamics of business ecosystems. While the business ecosystem concept has drawn a lot of attention in software and business literature, the intangible psycho-social layers of attention and shared cognition produced by the interactions between ecosystem actors are not well understood. To address this void in the literature, we adopt collective consciousness as a conceptual tool to better understand business ecosystems as complex networks of heterogeneous actors. We present an illustrative case of an emerging business ecosystem of digital services for real estate and facility management and scrutinize the applicability of collective consciousness as a conceptual device to better understand the characteristics and dynamics of business ecosystems. We suggest that employing collective consciousness provides a useful analytical device to better understand the complexities emerging from the interactions between the actors. We further discuss under what circumstances employing collective consciousness as a conceptual tool adds particular value for business ecosystem research and practice.
Evolution of the Agile Scaling Frameworks
(2021) Uludağ, Ömer; Putta, Abheeshta; Paasivaara, Maria; Matthes, Florian
A4 Artikkeli konferenssijulkaisussa
Over the past decade, agile methods have become the favored choice for projects undertaken in rapidly changing environments. The success of agile methods in small, co-located projects has inspired companies to apply them in larger projects. Agile scaling frameworks, such as Large Scale Scrum and Scaled Agile Framework, have been invented by practitioners to scale agile to large projects and organizations. Given the importance of agile scaling frameworks, research on those frameworks is still limited. This paper presents our findings from an empirical survey answered by the methodologists of 15 agile scaling frameworks. We explored (i) framework evolution, (ii) main reasons behind their creation, (iii) benefits, and (iv) challenges of adopting these frameworks. The most common reasons behind creating the frameworks were improving the organization’s agility and collaboration between agile teams. The most commonly claimed benefits included enabling frequent deliveries and enhancing employee satisfaction, motivation, and engagement. The most mentioned challenges were using frameworks as cooking recipes instead of focusing on changing people’s culture and mindset.
SN 2017gmr: An Energetic Type II-P Supernova with Asymmetries
(2019-11-01) Andrews, Jennifer E.; Sand, D. J.; Valenti, S.; Smith, Nathan; Dastidar, Raya; Sahu, D. K.; Misra, Kuntal; Singh, Avinash; Hiramatsu, D.; Brown, P. J.; Hosseinzadeh, G.; Wyatt, S.; Vinko, J.; Anupama, G. C.; Arcavi, I.; Ashall, Chris; Benetti, S.; Berton, Marco; Bostroem, K. A.; Bulla, M.; Burke, J.; Chen, S.; Chomiuk, L.; Cikota, A.; Congiu, E.; Cseh, B.; Davis, Scott; Elias-Rosa, N.; Faran, T.; Fraser, Morgan; Galbany, L.; Gall, C.; Gal-Yam, A.; Gangopadhyay, Anjasha; Gromadzki, M.; Haislip, J.; Howell, D. A.; Hsiao, E. Y.; Inserra, C.; Kankare, E.; Kuncarayakti, H.; Kouprianov, V.; Kumar, Brajesh; Li, Xue; Lin, Han; Maguire, K.; Mazzali, P.; McCully, C.; Milne, P.; Mo, Jun; Morrell, N.; Nicholl, M.; Ochner, P.; Olivares, F.; Pastorello, A.; Patat, F.; Phillips, M.; Pignata, G.; Prentice, S.; Reguitti, A.; Reichart, D. E.; Rodríguez; Rui, Liming; Sanwal, Pankaj; Sárneczky, K.; Shahbandeh, M.; Singh, Mridweeka; Smartt, S.; Strader, J.; Stritzinger, M. D.; Szakáts, R.; Tartaglia, L.; Wang, Huijuan; Wang, Lingzhi; Wang, Xiaofeng; Wheeler, J. C.; Xiang, Danfeng; Yaron, O.; Young, D. R.; Zhang, Junbo
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
We present high-cadence UV, optical, and near-infrared data on the luminous Type II-P supernova SN 2017gmr from hours after discovery through the first 180 days. SN 2017gmr does not show signs of narrow, high-ionization emission lines in the early optical spectra, yet the optical light-curve evolution suggests that an extra energy source from circumstellar medium (CSM) interaction must be present for at least 2 days after explosion. Modeling of the early light curve indicates a ∼500 R o progenitor radius, consistent with a rather compact red supergiant, and late-time luminosities indicate that up to 0.130 ± 0.026 M o of 56Ni are present, if the light curve is solely powered by radioactive decay, although the 56Ni mass may be lower if CSM interaction contributes to the post-plateau luminosity. Prominent multipeaked emission lines of Hα and [O i] emerge after day 154, as a result of either an asymmetric explosion or asymmetries in the CSM. The lack of narrow lines within the first 2 days of explosion in the likely presence of CSM interaction may be an example of close, dense, asymmetric CSM that is quickly enveloped by the spherical supernova ejecta.
Towards a Secure DevOps Approach for Cyber-Physical Systems: An Industrial Perspective
(2020) Abrahamsson, Pekka; Ghanbari, Hadi; Botterweck, Goetz; Gilje Jaatun, Martin; Kettunen, Petri; Mikkonen, Tommi; Mjeda, Anila; Münch, Jürgen; Nguyen Duc, Anh; Russo, Barbara; Wang, Xiaofeng
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
With the expansion of cyber-physical systems (CPSs) across critical and regulated industries, systems must be continuously updated to remain resilient. At the same time, they should be extremely secure and safe to operate and use. The DevOps approach caters to business demands of more speed and smartness in production, but it is extremely challenging to implement DevOps due to the complexity of critical CPSs and requirements from regulatory authorities. In this study, expert opinions from 33 European companies expose the gap in the current state of practice on DevOps-oriented continuous development and maintenance. The study contributes to research and practice by identifying a set of needs. Subsequently, the authors propose a novel approach called Secure DevOps and provide several avenues for further research and development in this area. The study shows that, because security is a cross-cutting property in complex CPSs, its proficient management requires system-wide competencies and capabilities across the CPSs development and operation.