The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Data-flow and control-flow perspectives are the most important perspectives to workflow management. As scientific workflows often operate on large, complex, and heterogeneous data, data-flow is particularly important to them. DFL is a formal, graphical workflow language for data-flows based on Petri nets and nested relational calculus. The focus of this paper is to articulate the transition system...
Scientific workflow is mainly supported in many development and execution environments corresponding to specific domains. Although there are many differences among those environments, some consensuses have been achieved to a certain extent in the following parts of scientific workflow IDE(Integrated Development Environment): workflow languages and representations,workflow executors, and execution...
Numbers of proposals to incorporate delegation into secure service management have been seen the last years. How to assure that only the authorized users can fulfill specify services is one of the main problems for secure service management. Delegation is a mechanism that permits a user to assign a subset of his/her assigned authorizations to other users who currently do not possess the authorization...
Both control-flow and data-flow perspectives are primary in process representation of a workflow. Data-flow perspective is always layered on top of the control-flow perspective. Since process representation from the data-flow perspective is more stable than from the control-flow perspective, in this paper, a data-flow skeleton from data-flow perspective is placed as the base in workflow design. The...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.