The Critical Path Method (CPM) is a vital tool for the planning and control of complex projects. The successful implementation of CPM requires the availability of a clear determined time duration for each activity. However, in practical situations this requirement is usually hard to fulfill since many of activities will be executed for the first time. Hence, there is always uncertainty about th...

Figuring out why a process in a batch window ended late often requires tracing back through the critical path to look for anomalies. In a complicated batch schedule, determining which jobs are on the critical path can be a seemingly daunting task. Various commercial products can be used for this task, but they may not be necessary. The code needed to determine which predecessor jobs constitute ...

In this paper, we focus on the problem of secure multicast in dynamic groups. In this problem, a group of users communicate using a shared key. Due to the dynamic nature of these groups, to preserve secrecy, it is necessary to change the group key whenever the group membership changes. While the group key is being changed, the group communication needs to be interrupted until the rekeying is co...

Vertical fragmentation and access path selection are interdependent techniques in physical database design used to enhance performance in database systems. While vertical fragmentation in relational databases deals with assignment of attributes to physical files, access path selection deals with searching efficiently the physical location of data records. Vertical fragmentation is a combinatori...

One important problem when deploying interdomain path selection is advertising metrics that hold for a long period of time. In this paper we propose a method to aid interdomain path selection mechanisms in that sense. We present a means of computing a bound on the end-to-end delay of traversing a domain considering that the traffic varies within a given uncertainty set. This provides a robust a...

Extended Abstract Right timing of complex digital circuits and systems in nanotechnology need careful design steps and testing. Incorrect timing can be caused during design or manufacturing processes. Incorrect timing is manifested as delay faults. The delay faults in digital circuit testing are more and more important due to huge number of gates and lines integrated on a chip specifically in n...

This work proposes a process planning for machining of a Floor which is the most prominent elemental machining feature in a 21⁄2D pocket. Traditionally, the process planning of 21⁄2D pocket machining is posed as stand-alone problem involving either tool selection, tool path generation or machining parameter selection, resulting in sub-optimal plans. For this reason, the tool path generation and...

—The goal of traffic management is efficiently utilizing network resources via adapting of source sending rates and routes selection. Traditionally, this problem is formulated into a utilization maximization problem. The single-path routing scheme fails to react to instantaneous network congestion. Multi-path routing schemes thus have been proposed aiming at improving network efficiency. Unfort...

In this study a new approach to rank exponential fuzzy numbers using  -cuts is established. The metric distance of the interval numbers is extended to exponential fuzzy numbers. By using the ranking of exponential fuzzy numbers and using  -cuts the critical path of a project network is solved and illustrated by numerical examples. Keywords: Exponential Fuzzy Numbers,  -cuts, Metric Dista...