Project planning: the critical path

When planning a project, the question of leeway arises. Knowledge of the critical path is essential …
Definition of the critical path
When constructing a PERT diagram (a method of scheduling tasks in a project), the critical path represents the sequence of tasks that has no slack: that is, it does not there is no flexibility between the previous task and the next. This plot indicates the incompressible timeframe for carrying out the project.

To get more online & Physical training related to project planning click here.

project planning
project planning

What is the point of the critical path?

It is important to identify this critical path because it is an element of forward-looking management that makes it possible to master key stages and deadlines. It is a central tool for the implementation of a PERT. The final step for the project manager is to have an effective and relevant planning tool. The identification and layout of the critical path allow in particular:
identify the levers for reducing delays: knowledge of the critical chain makes it possible to identify the priority tasks on which to act if one wishes to reduce the duration of the project planning as a whole. It is then possible to take the necessary measures to act: allocation of resources (staff, budget, etc.), shifting of deliverables (while respecting the objectives of the project), etc.
prevent slippage and control risks: these same tasks must be closely monitored to prevent deadlines from slipping due to delays in these critical tasks. It is a valuable tool for identifying as early as possible the hazards (and overdue tasks) that can delay the project, activities that cannot be completed within the required time.
evaluate scenarios: it is relevant to test different combinations on a timescale (sequence of tasks and content of steps) to analyze the impacts over the duration of the project by identifying the project margins and each critical path. The consequences are then directly apprehensible on the planning.
Project management tools (project management software such as MS-project) greatly facilitate the creation of a network diagram (identification of prior art, dependencies between tasks, etc.). The automatic construction allows the critical path to be displayed and helps to develop alternatives with the aim of completing the project as soon as possible. The flexibility of the tool offers the opportunity to perform simulations, observe several critical paths according to input variables.
Building the Gantt chart is the final step after establishing the critical path. From the first works to the end of the project, each step is set on a schedule. Each milestone is visible.

How to reduce the duration of the critical path?

When the project requires a faster delivery of deliverables than that imposed by the critical path, project managers have 2 main options at their disposal.
Bring additional resources to critical path tasks: more staff, outsourcing of certain activities, etc. Provided that these additional resources really make it possible to shorten their duration and that these resources can be mobilized. The consequence is the inflation of the cost of the project compared to the initial budget.
Process tasks in parallel when they had to be chained. This involves starting an activity earlier than planned without waiting for the end of the previous one on which it depends – for example: starting work before the specifications are finalized, starting the construction of a prototype without the study being completely finished, etc. In this situation, it is necessary to assess two types of risk: the quality risk, where this change of organization can generate a lower level of quality than what was expected – and financial risk, in particular, if the anticipated task takes the wrong one. direction and that it is necessary to start over in whole or in part, or to modify certain points with, again, a quality risk.

What is the Critical Path Method?

Beyond the critical path used in the PERT method, there is an approach called the “Critical Path Method” (CPM). It is described in particular in the PMBOK, (project management repository).
Unlike PERT, the activity is registered in the node (and not the arrow – or bow – which connects 2 nodes or boxes). Each node (also called “vertex”) includes this information:
Like PERT, this approach is also attached to calculating existing margins to prevent and manage lags:
Total margin = DTA – DTO or FTA – FTO
For the English version:
Early start = ES = Early Start
Early Finish = EF = Early Finish
Latest start = LS = Late Start
End at the latest = LF = Late Finish
See also the “Critical Chain Method” (CCM), the objective of which is to add “buffers” on one or more chains, at the level of resources and at the end of the project. These “buffers” are buffer zones allowing flexibility to be provided by improving the project margin. Make it more agile, release tensions and constraints to absorb hazards while maintaining pressure on each task

Leave a Comment

Your email address will not be published. Required fields are marked *

Our New Initiative alhumdulillah. Hostel Facility for Trainees.
This is default text for notification bar

of escort çukurova escort kozan escort seyhan escort yüreğir escort adana mutlu son masaj besni escort kahta escort gölbaşı escort adıyaman mutlu son masaj bolvadin escort dinar escort sandıklı escort emirdağ escort afyon mutlu son masaj diyadin escort doğubayazıt escort patnos escort ağrı mutlu son masaj ortaköy escort aksaray mutlu son masaj merzifon escort suluova escort taşova escort amasya mutlu son masaj çankaya escort keçiören escort yenimahalle escort mamak escort etimesgut escort sincan escort altındağ escort pursaklar escort gölbaşı escort polatlı escort çubuk escort kahramankazan escort beypazari escort ankara mutlu son masaj alanya escort manavgat escort serik escort antalya mutlu son masaj şehitkamil escort nizip escort ıslahiye escort antep mutlu son masaj ardahan mutlu son masaj artvin mutlu son masaj hopa escort borçka escort aydın mutlu son masaj efeler escort nazilli escort kuşadası escort söke escort didim escort incirliova escort çine escort germencik escort balıkesir mutlu son masaj karesi escort altıeylül escort edremit escort bandırma escort gönen escort ayvalık escort burhaniye escort bigadiç escort susurluk escort bartın mutlu son masaj batman mutlu son masaj kozluk escort sason escort beşiri escort bayburt mutlu son masaj bilecik mutlu son masaj bozuyuk escort bingöl mutlu son masaj solhan escort genç escort karlıova escort bitlis mutlu son masaj tatvan escort güroaymak escort ahlat escort bolu mutlu son masaj gerede escort burdur mutlu son masaj bucak escort bursa mutlu son masaj osmangazi escort yıldırım escort nilüfer escort inegöl escort gemlik escort mudanya escort mustafakemalpaşa escort gürsu escort karacabey escort orhangazi escort kestel escort iznik escort çanakkale mutlu son masaj biga escort can escort gelibolu escort ayvacık escort çankırı mutlu son masaj çerkes escort çorum mutlu son masaj sungurlu escort osmancık escort alaca escort iskilip escort denizli mutlu son masaj pamukkale escort merkezefendi escort çivril escort acıpayam escort tavas escort diyarbakır mutlu son masaj kayapınar escort bağlar escort yenişehir escort ergani escort bismil escort sur escort silvan escort çermik escort dicle escort düzce mutlu son masaj akçakoca escort kaynaşlı escort edirne mutlu son masaj keşan escort uzunköprü escort ipsala escort elazığ mutlu son masaj kovancılar escort karakoçan escort erzincan mutlu son masaj erzurum mutlu son masaj yakutiye escort palandöken escort aziziye escort horasan escort oltu escort pasinler escort odunpazarı escort tepebaşı escort eskişehir mutlu son masaj bulancak escort espiye escort tirebolu escort görele escort giresun mutlu son masaj gümüşhane mutlu son masaj kelkit escort hakkari mutlu son masaj yüksekova escort şemdinli escort hatay mutlu son masaj antakya escort iskenderun escort defne escort dörtyol escort samandağ escort kırıkhan escort reyhanlı escort arsuz escort altınözü escort hassa escort payas escort erzin escort yayladağı escort ığdır mutlu son masaj yalvaç escort eğirdir escort sarkıkaraağaç escort ısparta mutlu son masaj istanbul mutlu son masaj izmir mutlu son masaj buca escort karabağlar escort bornova escort karşıyaka escort konak escort bayraklı escort çiğli escort torbalı escort menemen escort gaziemir escort ödemiş escort kemalpaşa escort bergama escort menderes escort aliağa escort tire escort