Obligation policies are one main means of exercising control within an organisation. They specify the actions that some subject has to perform. The authority over these actions needs to be specified in authorisation policies. Current policy notations provide us with the needed structure to represent authorisations and obligations as policy objects for distributed systems management. They suppor...

Bureaucracy is featured by vertical hierarchical structure in which the decision maker usually lacks direct access to the informed agent, and the span of discretionary authority decreases top down. In this paper we investigate the delegation scheme in three-level hierarchies. The minister delegates authority to a biased senior bureaucrat, then the senior can make further delegation decision to ...

In a market in which a vertically integrated producer (VIP) supplies an essential input to a retail rival, we explore the role of managerial delegation when it shapes downstream firms’ incentives and determine the endogenous choice of delegation under both Cournot and Bertrand competition. The equilibrium choice of acting as a managerial firm, which is a standard result in literature of strateg...

Model-Driven Security (Mds) is a specialized Model-Driven Engineering (Mde) approach for supporting the development of secure systems. Model-Driven Security aims at improving the productivity of the development process and quality of the resulting secure systems, with models as the main artifact. Among the variety of models that have been studied in a Model-Driven Security perspective, one can ...

Object based, imperative languages with delegation (eg SELF) support exploratory programming: composition of objects, sharing of attributes and modification of objects’ behaviour at run-time are easily expressible. Delegation allows objects to delegate execution of methods to other objects and to adapt delegated behaviour by overriding of method definitions. These features allow for creation of...

Article history: Received 27 October 2011 Received in revised form 6 August 2012 Accepted 16 August 2012 Available online xxxx A great deal of research on geographically distributed organizing focuses on communication among members; however, in the face of increasingly large, complex and interdependent infrastructure, scholars must also examine instances of technology-supported coordination tha...

OBJECTIVES To examine the impact of the degree of electronic health record (EHR) use and delegation of EHR tasks on clinician productivity in ambulatory settings. STUDY DESIGN We examined EHR use in primary care practices that implemented a web-based EHR from athenahealth (n = 42) over 3 years (695 practice-month observations). Practices were predominantly small and spread throughout the coun...

In this paper we address the main questions associated with delegations and the role they play in security architectures for distributed systems; why they are required and how they can be implemented. In distributed and dynamic systems like the Semantic Web or pervasive computing environments, describing comprehensive policies in terms of every possible resource and user is not always possible ...

This article conceptualizes ‘qualification’ as a transnationally negotiated social construct of this period. Those moving from the global South to industrialized countries often experience downgraded institutionalized cultural capital. Taking Germany an empirical case and drawing upon Bourdieu's concepts fields symbolic violence, empirically reconstructs rating practices foreign professional qu...

Food allergy is increasing in school-age children. School nurses are a primary health care resource for children with food allergy and must be prepared to manage allergen avoidance and respond in the event of an allergic reaction. An anonymous survey was administered to school nurses attending their association meetings to determine their educational needs regarding children with food allergy. ...