Auflistung nach Schlagwort "Business value of IT"
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- ZeitschriftenartikelNutzenpotenziale und Herausforderungen des Einsatzes von Serviceorientierten Architekturen(Wirtschaftsinformatik: Vol. 53, No. 4, 2011) Becker, Alexander; Widjaja, Thomas; Buxmann, PeterErgebnisse einer deskriptiven empirischen Untersuchung zu Nutzenpotenzialen und Herausforderungen des Einsatzes einer Serviceorientierten Architektur (SOA) in deutschen Großunternehmen werden vorgestellt. Identifikation sowie Strukturierung der untersuchten 21 Nutzenpotenziale und 13 Herausforderungen basieren auf der Weiterentwicklung von Modellen aus der Literatur und einer dieser Untersuchung vorausgegangenen Serie von Experteninterviews.Die Kernergebnisse zur Umsetzung und Bewertung des SOA-Konzepts lauten wie folgt: Der Großteil der Nutzer hat erst eine oder wenige Anwendung(en) auf SOA-Basis im produktiven Betrieb implementiert und der Anteil von Services an der gesamten IT-Landschaft liegt durchschnittlich bei ca. 10 %. Von den in der Literatur diskutierten Designprinzipien einer SOA werden vor allem die lose Kopplung und die Dokumentation der Schnittstellen von den Befragten weitgehend umgesetzt, während die eineindeutige Kapselung von Funktionalität und Service Level Agreements kaum realisiert wird. Die befragten Unternehmen schätzen den Nutzen der SOA-Einführung im Verhältnis zu dem Aufwand aktuell im Schnitt leicht negativ, jedoch mit positiver Tendenz für die kommenden Jahre. Es lässt sich zeigen, dass die Nutzenbewertung positiv mit der Einsatzdauer der SOA korreliert ist. Von den 21 abgefragten Nutzenpotenzialen stimmen die Teilnehmer der Untersuchung insbesondere der Optimierung von Geschäftsprozessen, der gesteigerten Agilität und den Aufwandsreduktion durch Mehrfachverwendung von Services zu. Herausforderungen werden vor allem im Betrieb (Performanz, Sicherheit) und im Management der SOA gesehen.AbstractThis article summarizes the results of an empirical study among large German enterprises regarding the value potentials and challenges of service-oriented architectures (SOA).The 21 value potentials and 13 challenges examined were identified and structured based on an advancement of SOA value models already existing in literature as well as on a series of expert interviews.Key results regarding the implementation and evaluation of the SOA-concept are: The majority of the users only run one or a few SOA-based applications and the share of services in their IT-landscape is on average about 10%. Among the design principles proposed in literature, especially loose coupling and good documentation of interfaces are implemented. Clear capsulation of functionality and the definition of Service Level Agreements (SLAs), however, are hardly applied. The interviewed companies assess the relation of the value of a SOA introduction compared to its cost currently as slightly negative, but with a positive trend for the upcoming years. It is shown that the assessment of the overall value positively correlates with the duration of SOA usage. Among the 21 examined value potentials, optimization of business processes, increased agility and cost reduction due to parallel re-use of services receive the highest ratings. According to the interviewed experts, the main challenges are operation (performance/security) and the management (governance) of the architecture. These challenges hinder value realization and lead to a moderately positive assessment of the overall concept.
- ZeitschriftenartikelThe Business Value of IT in Light of Prospect Theory(Business & Information Systems Engineering: Vol. 57, No. 5, 2015) Afflerbach, PatrickA key problem with IT decision-making is that the real value contributions of IT projects are unknown ex-ante to their executions. Thus, an organization has to rely on the expectations and perceptions of its decision makers. Moreover, these perceptions are prone to biases and display only a transfigured or irrational image of reality. This paper examines how these biases are related to the business value of IT (BVIT) and how IT decision-making can be rationalized. To this aim, a model is set up based on prospect theory, which is a frequently cited theory from behavioral economics used to descriptively analyze human value perception under risk. Applying the results found via prospect theory to IT decisions, the “perceived” BVIT is quantified and analyzed. Based on the model, the paper shows that the irrationalities rooted in human value perception provide explanations for two central paradoxes of IT. First, it reveals that they cause a disparity between the anticipated value-adding effects of IT and the actual measured outcomes, reflecting a famous observation within BVIT research known as the “productivity paradox of IT.” Second, recent studies show that IT increases the operational efficiency and competitiveness of organizations. However, only the operational effects are perceived in practice. In the paper, this one-sided perception is referred to as the “perception paradox of IT”. It is ultimately concluded that a rethinking of the position of IT within modern organizations and the establishment of suitable corporate governance mechanisms can resolve these issues, avoid irrationalities, and positively influence the performance impacts of IT.