Security is an important aspect of Service-oriented Architectures (SOAs), enabling the service-based integration of partner IT systems across organizational boundaries, i. e., in the Internet of Services. Current trends in SOA security, e. g., reducing it to Web service security, do not take into account SOA-specific threats, vulnerabilities, and attacks. In this paper, measures to support the ...

In an earlier article in this journal Shalvi, Baas, Handgraaf and De Dreu1 presented data to support their hypothesis that one should write when hot, submit when not. Their data suggested that over a four-year period more authors submitted papers for publication in the summer months (when it was hot) but that, as acceptance rates did not vary across the months, it would be better to submit pape...

Appendix Proof of Lemma 1: We first provide the complete parameter regions and the corresponding consumer equilibrium outcome: (I) Unpatched On-premises only (0 < v u < 1): (A) δ ≤ 1 − c p (i) p ≤ p s (1 − c p)/δ and α ≤ α B ; (ii) p s (1 − c p)/δ < p ≤ p s /δ and α ≤ α A ; (B) δ > 1 − c p (i) p ≤ 1 − c p − δ + p s and α ≤ α B ; (ii) 1 − c p − δ + p s < p ≤ p s and α ≤ α C ; (iii) p s < p ≤ p s...

Özet. IBM’in bulut üzerinde sunduğu Bluemix Platform as a Service (PaaS) ortamı, bulut ortamındaki uygulama ve servisleri geliştirme, yönetim ve çalıştırma süreçlerini sağlayan entegre DevOps katmanıyla birlikte yazılım geliştirme süreçlerine önemli destek vaat etmektedir. Bu çalışmada İzmir Üniversitesi Yazılım Mühendisliği öğrencilerinin yazılım proje yönetimi ve yazılım kalite sağlama dersle...

Customers of Platform as a Service providers are unable to evaluate the risk of their provider going bankrupt. Lacking this information, businesses are effectively putting their critical business services in jeopardy. In this paper, we present a method to evaluate the ecosystem health of eight different PaaS providers. The results of our research enable businesses and individuals to make an inf...

Why multi-tenancy is key to successful and sustainable softWare-as-a-service (saas)

Understanding the formation of commitment in service-oriented outsourcing such as SaaS is important. We draw on the relational view to examine how client-provider collaboration and a client’s outsourcing management capability, that have hitherto been considered independently, can be combined to improve commitment. Empirical results from 169 firms supported most of our hypotheses. The results sh...

Understanding the antecedents and consequences of trust in an online and on-demand outsourcing context is important. This study explores the effects of service quality on trust, which in turn affects a client firm’s post-adoption use in SaaS. A research model was developed based on the dedication-constraint framework of social exchange theory to measure service quality, trust, and SaaS post-ado...

In this paper, we analyze software production problem profiles and their link to the organizational contexts of European software production units. The data used in our study contains more than 3800 observations representing software production units in the Information Technology (IT), Production, and Service sectors. Software production problems examined in our study include those associated w...