{"id":1314,"date":"2022-11-03T12:14:39","date_gmt":"2022-11-03T12:14:39","guid":{"rendered":"https:\/\/plaky.com\/learn\/?p=1314"},"modified":"2026-02-11T07:14:17","modified_gmt":"2026-02-11T07:14:17","slug":"spi-in-project-management","status":"publish","type":"post","link":"https:\/\/plaky.com\/learn\/pt\/project-management\/spi-in-project-management\/","title":{"rendered":"\u00cdndice de Desempenho do Cronograma (SPI): Explicado"},"content":{"rendered":"\n

There are various factors to consider when managing projects. One of the most critical ones is monitoring how efficiently the project progresses compared to the initial plan.<\/p>\n\n\n\n

But, how can we identify whether the project is on track or if we need to catch up on work?<\/p>\n\n\n\n

Fortunately, there is a metric for monitoring project schedule performance \u2014 the schedule performance index (SPI).<\/p>\n\n\n\n

In this article, we will explain what the schedule performance index (SPI) is in project management<\/a> and how to calculate it. <\/p>\n\n\n\n

To ensure all information is easy to digest, we will provide examples of schedule performance index (SPI) value variations. <\/p>\n\n\n\n

Don\u2019t worry \u2014 you can make project schedule monitoring almost effortless. <\/p>\n\n\n\n

We will show you how you can have all vital information in one place by using project management software.<\/p>\n\n\n\n

Let\u2019s get started.<\/p>\n\n\n\n

\"Schedule<\/figure>\n\n\n\n
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What does SPI mean in project management?<\/h2>\n\n\n\n

A schedule performance index (SPI) measures the conformity of the project\u2019s actual progress to the planned progress.<\/strong><\/p>\n\n\n\n

It is a metric used in earned value management (EVM)<\/a>.<\/p>\n\n\n\n

Calculating the schedule performance index can help you assess the accuracy of a schedule and identify how efficiently the project team uses its time.<\/p>\n\n\n\n

We also use the schedule performance index (SPI) as a value for the estimate at completion (EAC)<\/a> calculation.<\/p>\n\n\n\n

Estimate at completion (EAC) is the estimated project budget<\/a> at its completion, and we determine it while the project is ongoing. <\/p>\n\n\n\n

We use the schedule performance index (SPI) for EAC calculation in a situation when both the cost performance index (CPI)<\/a> and schedule performance index (SPI) influence the remaining project work.<\/p>\n\n\n\n

To avoid any unpleasant surprises that can derail your project, you should check your SPI regularly.<\/p>\n\n\n\n

When the schedule performance index (SPI) value indicates the project is behind schedule, calculating the estimate at completion (EAC) helps us determine the amount of money we will actually spend on our project.<\/p>\n\n\n\n

As its name suggests, the schedule performance index (SPI) is related to the project schedule.<\/p>\n\n\n\n

According to the Australian Institute of Project Management (AIPM), a project schedule \u201cis a timetable that shows the start and end date of all project tasks, how the tasks relate to each other and usually which team members or other resources are responsible for delivery.\u201d<\/em><\/p>\n\n\n\n

We create the project schedule during the project planning phase<\/a>.<\/p>\n\n\n\n

It is a dynamic document maintained and updated during the project, as changes are inevitable.<\/p>\n\n\n\n

The approved project schedule is called a schedule baseline<\/a>.<\/p>\n\n\n\n

We use a schedule baseline as a basis for comparison to the project\u2019s actual results.<\/p>\n\n\n\n

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\ud83d\udca1 Plaky Pro Tip<\/strong><\/p>\n\n\n\n

Another way to measure the efficiency of the project is by using schedule variance (SV). You can learn all about SV in this guide:<\/p>\n\n\n\n