Digital test pack development

Traditional approach

Traditionally, test pack development is the responsibility of the construction contractor. This relies on subsystemisation being complete, typically meaning all test packs are not developed until the construction is more than 30% complete. The process starts with marking up P&IDs and cross referencing these with the line list to confirm test pressures, pipe specs, test mediums, etc. This process is extremely time consuming.

Developing test packs late also impacts the ability to “plan with the end in mind”. Test pack transition is a critical step in enabling the completions process in opening painting, heat trace, and insulation, as well as clearing the path for E&I disciplines.

The asset55 Execute approach​

Digitising and automating the process of creating test packs linked to the 3D model allows for both visual confirmation and improvements. By linking the line list to the model via our model enrichment process, we can apply artificial intelligence to segregate the piping into potential test packs.

Using the 3D model helps visualise constructibility, aiding in the breaking down of test packs further for optimisation. Once completed, all the lines are exported from the model with their test pack reference and attributes for heat trace and insulation requirements. This process can begin after the 60% model review and be completed in parallel to the digital systemisation process.


Test packs are developed digitally during engineering to support the optimisation of heat trace circuits. On a large scale project, this can be completed in approximately 8 weeks, and at a fraction of the cost of traditional approaches. With provisional test packs understood, this data can be used in support of advanced work packaging principles, execution planning, and resource planning.

Do you have any questions?

If you have any questions, feel free to contact us at any time.