What it is and how the network planning and management?It is a system that solves the issues of planning, management and development of large complexes in the economy, research, technological and design preparation for the production of new varieties of products, renovation of old and construction of new facilities, overhaul of fixed assets by means of network schedules.
Network Planning allows you to set the exact relationship between the work planned and the results that may be due to the implementation of these activities receive.Also it allows you to quickly calculate and adjust the plan any work.Network planning - the basis for the use of computer technology in the management of production and the creation of automatic control systems.This technology frees the big human resource busy drawing up plans for a standard of creative work.
Network planning methods are to create a mathematical model of a logical entity that manages a network model or drawing, in memory of a computer and reflecting the duration and relationship of all processes occurring in the performance of this complex work.
Network Diagram initially optimized by means of computer technology and applied mathematics, and then used for the purpose of operational management and organization of work.The graph reflects the events and performance.The event is characterized either beginning or end of a particular job, and the work itself expresses an action, the commission of which is necessary to move from an event that preceded to the next.On the schedule of events depicted in the form of circles, and the work in the form of arrows that show the connection between the events (also possible reverse version of the image: the work - mugs and linking their experiences - arrows).
Network planning requires a specific, clear job descriptions specifying the performer of each of them, specifying the time, which is measured in days, weeks, decades, months and is applied over the arrow.Time to make a responsible assessment of implementing the relevant works.All work done on schedule, eventually leading to tseleplanirovaniyu.Network planning long-term work requires the use not only of normative documents, but confirming its experimental data.
But it often happens, especially when carried out development of new products that the execution can not be expressed using a single reliable figures.In such cases, the Contractor shall provide three estimates:
1) An optimistic estimate.The minimum duration of the work, possibly in the most favorable conditions, in case no one and nothing will prevent its implementation.
2) pessimistic estimates.The maximum time that may be required to perform work in the event of difficulties.
3) The most likely estimate.It displays the time that will be spent under normal operating conditions.
One of the most important elements in the construction schedule - duration ways.Paths are divided into full and critical.Full path - is a line, the beginning of which - the initial event network, and the end - its crowning event.Critical Path - the longest, characterizes the duration of the implementation of all project activities, ie the time that will be spent to achieve the ultimate goal.
critical path - the most important factor in the whole system and network management software is the basis for choosing the most appropriate plan for organizing and monitoring the progress of the work.
