Project Management Methodologies,Prince2 Project Planning Methodology,GANTT Charts for Project Management

Estimating Durations- The time required by a task between the start and end of an activity is called the duration of the activity. Durations of activities should only be estimated after proper review of resources, activity relationships and activity sequencing. The same methodologies can be used for estimating the duration of the project activities but only under requisite conditions. Some tasks can also occur simultaneously headed by different members. This creates a visual representation of the project laid out over a specific timeframe which provides instant assistance to the project progress once the project has started. A Gantt chart is a widely used tool for planning and managing complex projects.

  • Most of the Gantt charts offer auto-scheduling which means if there is any change in the duration of the predecessor activities then the next activities will automatically have changed schedule and duration.
  • All the minute details of activities and tasks are not depicted clearly.
  • This information is important because of the interlinkages between various activities and if one activity gets delayed it will have an impact on others.
  • The candidates who will get qualified in the prelims are eligible to attend the mains.
  • This list can be prepared and the entire work can be mapped out using WBS.

It has to be updated each time a new task is introduced or some revision is done. It helps the users to get a fast visual representation of the status of each activity and all the anticipated statuses. All the tiny and big changes can be easily incorporated in the charts. Changes in relation to time, status and loads can be done. Foreman, Engineers, Top Management, Analysts and Project Managers everyone can understand the charts.

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Slack time – It is defined as the amount of time a task can be delayed without causing another task to be delayed or impacting the completion date of the overall project. Gantt charts can also reflect the resources assigned to each task and by what percent allocation. Obviously the tools will give you better and quicker results, but these templates are also not a bad option. Small companies that want to try out Gantt Charts for their projects can use it as a learning alternative before investing in tools. The only thing to keep in check while estimating durations are the “constraints”. Constraints are the limitations or restrictions on activities performed.

a gantt chat provides

The last and final schedule has to be effective and efficient. There is a technique known as Decomposition using which the project managers break down the WBS in multiple activities. Determining and comparing the desired planning time and actual planning time of the projects and tasks. You can draw a a gantt chat provides gantt chart by hand if you have a small project or use softwares if the project is big. These charts fulfill a wide range of requirements for big and small projects. They are commonly used in scheduling production processes, employee roster or scheduling, events scheduling, production processes, etc.

It shows us the project completion date, start date, the progress made so far as per the current date, the resources allocation and individual tasks with its subtasks, etc. Gantt chart has been highly successful in the software industry, with tracking the project deliverables. An example of the Gantt chart used in the software industry is as shown in the diagram below. You can make informed decisions on the project by following the dates of every activity their duration, milestones, and timelines. You know when to interfere in the project and make corrections, deviate or control the project from drastic derailment to make it successful.

You also can visualize the deadlines of each activity and how it impacts the project completion date. Normally the project completion date cannot be modified, you need to provide required buffers and calculate the floats of the various activities. In those times the Gantt chart was prepared by hand and hence it was quite tedious as it required redraw and several changes to be done manually. However nowadays with the advent of computers and technology the Gantt chart is prepared using computer software which can be easily created, updated, and printed. The PMP project management course offered by the leading institute StarAgile will enable you to work on the Gantt chart and know about its usage. There was another person named Hermann Shurch in Germany who created a similar tool in the year 1912 for his construction project.

Here we will look at two simple project scheduling models – Gantt charting and the Program Evaluation and Review Technique . Both are schematic models, but PERT also has some mathematical model adaptations. Milestones – In the Gantt chart milestones indicate the completion of every key activity. The milestones are shown at the end of the key activities in a diamond or circular shape. The information provided on this website is for educational or information purposes only. The CPM and Gantt chart are essential concepts for the CISA exam.

Gantt chart provides information about the:

It may be an easy task when you have only a few things in your mind or the list, how about having more than 15 things to sequence, prioritize, and schedule, it gets complex right!!. Think of a project having hundreds of activities to be managed and controlled in a better manner so that you are successful with the outcome. Initially, Gantt charts could only be prepared manually by hand as Bar charts which was quite a laborious task as it was necessary to correct and redraw the entire chart all over again each time a project was changed. Since most of the projects that needed proper scheduling and management were prone to frequent changes, the amount of rework involved limited the usefulness of Gantt charts. All project schedules have one critical path, usually only one in non-manipulated project schedules. Critical Path Analysis is commonly used with all forms of projects, including construction, aerospace and defense, software development, research projects, product development, engineering, and plant maintenance.

a gantt chat provides

In such a case, in the above picture, path 1 is the longest route, which takes the maximum time to complete the project. The disadvantage of the Gantt chart is that it does not show the dependency of tasks to each other, and it does not show which tasks are ‘critical’ to finishing the project on time. According to James Taylor “scope baseline as a synonym of project baseline which includes technical, cost, and schedule baselines”. Initially these charts were prepared by hand and it was a very laborious and tedious task. Every time some changes were made in the project, a new chart had to be prepared by hand.

Team and resource management is the key to the successful completion of the projects. The Gantt chart can be used as a tool for resource management where you can find out who is working on what and you do not overload or create too many slack periods in the activities. Team management becomes the key to the successful completion of the project and the Gantt chart helps everyone to work effectively with everyone and everything engaged in the plan. Since the requirements are structured in the Gantt chart the team works easily on the tasks they are responsible for. PRINCE2 is an easily tailored, scalable, process-based approach to project management.

Solution(By Examveda Team)

The estimating process depends on several key factors such as the estimator’s skills and competencies, and the technology used for estimation. When the resources have been estimated as per the requirement, they are put up in the project schedule against the respective activities. To know the timewise requirement of different resources, a resource calendar is also created. A Gantt chart is a special type of bar chart where each bar represents an activity. This chart lists the tasks to be performed on the vertical axis, and time intervals on the horizontal axis.

Now that you have estimated the resources, it is time to estimate the durations of each activity. Duration is the time taken by each activity from starting to end. The techniques that you use for estimating the resources can be used to estimate the durations.

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It can be easily seen from the chart that which activities can be done in parallel and which has to be done sequentially. The activities, which are dependent on each other, i.e., cannot be done in parallel, form a critical path. Therefore, the project manager has to take care more of the activities on the critical path, to complete the project on time. With the gradual progress of a project, a Gantt chart can be adjusted simultaneously to display an updated real-time project schedule so that everybody involved with the project is informed about the progress. Too many meetings can be avoided and replaced with Gantt charts for status updates. It becomes easier for the members involved in an activity to analyze task progress and talk about specific problems that they encounter through the task or project progress.

The final select list will be released after the Interview. The demand of a certain part is 1000 parts/year and its cost is Rs. 1000/part. The orders are placed based on the economic order quantity .

The methodology works best in environments where project team members have been trained and are PRINCE2 qualified. There is a tradeoff between resource allocation, time of completion and cost of the project. The Gantt chart helps project manager to allocate resources to various activities. He or she may try different combination for resource allocation by seeing the Gantt chart for which activities are most critical. Arrows – Arrows in your tasks shows the dependencies of the task start and finish from various other tasks. They show that the beginning of the current task is done when the predecessor task is completed; this is represented by the arrows in the Gantt chart.

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