Any project faces delays and disruptions especially the more complex projects being undertaken with many interfaces. Proving delay and/or disruption is not an easy task and it is a time consuming process especially on the larger projects. There lots of details and interfaces with the involvement of many stakeholders. The different methods need to be derived from a recognized system. Proving delays in the larger projects, whose schedules contain many activities with many interfaces and lot of causes for delay and disruption is a complicated process and involves lots of details.
When any degree of complexity in the project is examined, it becomes more difficult for the project team to record the delays and disruption events properly because they are always busy dealing with the site issues and other project pressures. In order for the contractors to be successful, a time extension claim or disruption claims should adequately establish causation and liability and assist in demonstrating the extend of time-related damages experienced as a direct result of the delay events relied upon.
I cannot express the importance of accurate site records of who, what, when & why. These simple questions need to be part of the daily site process on all site activities.