List of Authors
نویسنده
چکیده
Service Interface Abstract Service Interface Travel Agency Client Side Webservice Interface Figure 2 UML Component diagram showing the component systems that make up the Internet Travel Agency (TA). The grey areas indicate the fact that the component systems are under the control of different organisations. A user is shown interacting with the Travel Agency Client Side component that validates client side inputs and passes requests to the Travel Agency Server Side component. The Travel Agent Server Side component handles each request by invoking multiple Intermediate Interfacing Subsystems (IIS). Each IIS provides an abstract service interface for a particular service type, for example the Flight Systems IIS provides an abstract service interface for booking flights with systems such as AirNZ and KLM even though each of these systems has different webservice interfaces. Further Results on Architectures and Dependability Mechanisms Dependable Systems of Systems 37 2.2. System Model Integrators compose a DSoS from existing components (systems) that are connected by interfaces, glue code and additional (newly-developed) components where necessary. An interface is a set of named operations that can be invoked by clients [Szyperski 1997]. We assume that the integrators know the component interfaces. Knowledge of the interfaces can be derived from several sources: interfaces can be either published or discovered (there is a number of new techniques emerging in this area), programmer’s guides, interfaces are first-class entities in a number of environments such as interpreters, component technologies (CORBA, EJB), languages (Java). Besides integrators there are other roles played by humans involved in the composed system at runtime, for example: clients of the composed system, other clients of the components, etc. We assume that component upgrade is out of our control: components are upgraded somehow (e.g. off-line) and if necessary their states are consistently transferred from the old version to the new version.
منابع مشابه
“Editorial Letter” Managing Authorship Conflicts: A Guide for Researchers
Nowadays, the issue of Authorship has increasingly expanded in the academic world and has resulted in a lot of problems for scholars and the editorial board of scientific Journals. Given the increasing number of postgraduate students and subsequent research activities, every day we witness the formal and informal arguments on the ambiguity and unfairness of decisions regarding authors' names an...
متن کاملچالش های سلامت و تو سعه
The purpose of this concluding is to review some of the major issues that have been highlighted by the various authors in took under this title . A major underlying theme, is that there is not a simple, one way correlation between " greater development" and "better health", but we can find “different health” and not simply “ better health". This is only one of many challenges there is between h...
متن کاملچالش های سلامت و تو سعه
The purpose of this concluding is to review some of the major issues that have been highlighted by the various authors in took under this title . A major underlying theme, is that there is not a simple, one way correlation between " greater development" and "better health", but we can find “different health” and not simply “ better health". This is only one of many challenges there is between h...
متن کاملTemporal associations and prior-list intrusions in free recall.
When asked to recall the words from a just-presented target list, subjects occasionally recall words that were not on the list. These intrusions either appeared on earlier lists (prior-list intrusions, or PLIs) or had not appeared over the course of the experiment (extra-list intrusions). The authors examined the factors that elicit PLIs in free recall. A reanalysis of earlier studies revealed ...
متن کاملWho is an author
• Inter-disciplinary conventions. Different fields of study often have vastly different conventions when it comes to allocating authors. While a lot of disciplines tend to list authors in decreasing order of contribution, others may list authors in alphabetical order, regardless of the individual contribution. The issue of determining whether or not “lesser” contributors should be listed at all...
متن کاملThe anatomy of an electronic discussion list for librarians, KUTUP-L: Bibliometric and content analyses of postings
Electronic discussion lists are widely used as a professional and scientific communication tool since late 1980s. Analysis of messages sent to discussion lists provides useful information on professional as well as scientific communication patterns. In this paper, we present the findings of a bibliometric analysis of some 20,000 messages sent to KUTUP-L, an electronic discussion list for Turkis...
متن کامل