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What Are The 7 Different Types Of Scheduling

Scheduling is a reality of modern life. As tasks become more complex and specialized, it is often necessary to create detailed, organized plans to ensure that multiple people and resources are efficiently used in completing a project. In order to accomplish this, there are seven primary types of scheduling that can be employed.

Each has its own distinct advantages and disadvantages, so knowing which strategy will work best for a particular task is critical. In this article, we’ll look at each type of scheduling method and consider how they can be used most effectively in a variety of contexts.

1. Sequential Scheduling

Sequential scheduling, also known as the Chain of Events method, is the simplest and most straightforward approach to task scheduling. In its most basic form, it is a linear list of activities which need to be completed, organized chronologically.

Each task is started as soon as the preceding one is finished. This method is simple to implement and can be used for both short and long-term projects. However, it can be difficult to adjust tasks once the plan is set in motion and disruptions to the timeline can easily occur.

2. Activity-on-Node Scheduling

Activity-on-Node scheduling is a form of network scheduling which assigns tasks to nodes within a network. A node is a point or device linked to other points in the network which are represented as activities.

Usually, these are tasks with start and completion dates that need to be fulfilled in order to complete the project. This form of scheduling is incredibly flexible, making it ideal for large, complex projects with many intersecting tasks, resources and timelines.

3. Time-Lists Scheduling

Time-Lists scheduling is a method of task scheduling that uses an ordered list of tasks to create a timeline of events. Each task is assigned its own start time, duration and end time.

This approach is useful for projects with multiple contributors and tasks that need to be completed in a specific order. It can also be used for projects with flexible deadlines and is often the preferred choice for agile teams working on product development.

4. Critical Path Method Scheduling

Critical Path Method (CPM) Scheduling is a structured approach to task scheduling which is based on the network of activities that need to be completed in order to complete the project. This form of scheduling is heavily reliant on estimates which are made at the start of the project. It ensures that resources are efficiently used and helps to highlight any potential issues with the timeline before work has begun.

It is often employed in larger projects which require detailed planning.

5. Program Evaluation and Review Technique Scheduling

Program Evaluation and Review Technique (PERT) scheduling is a more sophisticated form of critical path method scheduling which takes into account the uncertainties of activities and their associated durations. It uses a combination of the three distinct estimates for each task (most optimistic, most likely and most pessimistic) to create a timeline for the project.

This allows for a more accurate forecast of how long the project will take to complete and makes it easier to identify potential risks before they emerge.

6. Resource Scheduling

Resource scheduling is a method of task scheduling which focuses on the resources required to complete a project. This is usually done by creating a graphical timeline which shows which resources need to be allocated at different times.

This method makes it easier to keep track of resources and can help project managers to ensure that they are used efficiently throughout the duration of the project.

7. Priority Scheduling

Priority scheduling is a method of task scheduling which is based on the importance of tasks within the project. This is typically a hierarchical approach which assigns tasks an importance rating, allowing project managers to identify which tasks are the most critical for completion. For example, tasks which have a higher priority rating are completed before those with a lower one.

This approach is useful for projects which have multiple tasks of varying importance and timeframes.


Scheduling is an essential part of project management and there are many different approaches which can be used depending on the needs of the project. Each of the seven types of scheduling discussed in this article has its own advantages and disadvantages.

Knowing which method will work best for a particular project is critical for ensuring that it is completed successfully and on time.

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