Project Management Networks Part 3: Task Relationships and Lags
Channel: Prof C
Date: 2019-02-07

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There are four different types of dependency that can be used to link tasks.
• Finish to Start
• Start to Start
• Finish to Finish
• Start to Finish
In addition, there can be lags (delays) introduced in these dependencies. For example, if a task involves ordering materials and then using those materials to make something else, the time it takes to ship the product would need to be accounted for in the schedule. Another common example is when there are delays due to the need for paint to dry, concrete to cure, etc.