network analysis

Fig. 59 Network analysis. Network for constructing kitchen extension. (w = weeks).

network analysis or programme evaluation and review technique (PERT)

a method of planning, scheduling and controlling projects involving interrelated but distinct elements of work, or activities. Activities and their interrelationships are depicted in a network of arrowed links representing activities. For example, Fig. 59 shows a simple schematic network for the construction of a kitchen extension, with planned activities and their estimated duration in weeks. Certain activities (like preparing the ground) have to be performed before the next stage of production can be embarked upon (like constructing the shell of the building). The sequential path which takes the least time to complete the project is called the ‘critical path’ (here the route a-b-c-d-e-f, taking 20 weeks) and any delay to these critical activities will delay the project completion. Other activities (like preparing the ground) are non-critical and can be delayed (in this case by up to one week) without delaying the overall project. Such non-critical activities embody an amount of slack time (one week in the example). The total amount of slack time for all non-critical activities shows the extent to which these activities can be delayed before affecting the project completion date.

Network analysis is often applied to large-scale projects in civil engineering and shipbuilding or to major repair or maintenance projects or new product launches. It is used to identify problem areas where bottlenecks may occur and where additional resources may be needed.

单词	network analysis
释义	network analysis network analysis [′net‚wərk ə′nal·ə·səs] (electricity) Derivation of the electrical properties of a network, from its configuration, element values, and driving forces. (industrial engineering) An analytic technique used during project planning to determine the sequence of activities and their interrelationship within the network of activities that will be required by the project. Also known as network planning. network analysis network analysis A management tool designed to reduce a system’s energy or labour expenditure to a minimum. Network analysis also tries to estimate the amount of time that the growth of interrelated tasks (“network”) will take by arranging the network in time-dependent routes, where the critical path is the one that requires the most time and which requires input from the previous steps. network analysis Fig. 59 Network analysis. Network for constructing kitchen extension. (w = weeks). network analysis or programme evaluation and review technique (PERT) a method of planning, scheduling and controlling projects involving interrelated but distinct elements of work, or activities. Activities and their interrelationships are depicted in a network of arrowed links representing activities. For example, Fig. 59 shows a simple schematic network for the construction of a kitchen extension, with planned activities and their estimated duration in weeks. Certain activities (like preparing the ground) have to be performed before the next stage of production can be embarked upon (like constructing the shell of the building). The sequential path which takes the least time to complete the project is called the ‘critical path’ (here the route a-b-c-d-e-f, taking 20 weeks) and any delay to these critical activities will delay the project completion. Other activities (like preparing the ground) are non-critical and can be delayed (in this case by up to one week) without delaying the overall project. Such non-critical activities embody an amount of slack time (one week in the example). The total amount of slack time for all non-critical activities shows the extent to which these activities can be delayed before affecting the project completion date. Network analysis is often applied to large-scale projects in civil engineering and shipbuilding or to major repair or maintenance projects or new product launches. It is used to identify problem areas where bottlenecks may occur and where additional resources may be needed. FinancialSeen/a
随便看	vleu vlev vlf vlfa vlfc vlfd vlf digital information network vlffs vlfi vlfl vlfla vlfm vlf multichannel submarine broadcast system throw me off the trail throw me on throw me on the scrap heap throw me onto throw me out throw me over throw me together throw me to the dogs throw me to the lions throw me to the wolves throw me under the bus throw me up