Recap- Component Accounting and Retrospective Identification

Component accounting involves assessing whether an asset has significant components when it's bought or constructed.
A significant component is a part of an asset with:
- Significant value relative to other parts.
- A different useful life compared to the rest of the asset.
Management uses judgment and materiality principles to determine significant components.

On day 1, when an asset is acquired, you need to assess and determine if there are any significant components.
If significant components are identified upfront:
- They should be depreciated separately.
- Use their own useful lives.
- Apply depreciation methods chosen by management.
Example: A bus engine depreciated using the straight-line method over 3 years while the rest of the bus structure is depreciated using the sum-of-the-years' digits method.
IS 16 doesn't specify how far to break down assets but if similar components have similar useful lives, they can be grouped and depreciated together.

If component A has a useful life of 10 years and component B has a useful life of 3 years:
- Component A is depreciated over 10 years.
- Component B is depreciated over 3 years.
After Component B is fully depreciated, it's replaced with component C and depreciated for 3 years.
This process continues with components D and E to ensure the entire asset is depreciated over 10 years.

Materiality principles (similar to auditing) apply in determining the significance of a component.
A qualitatively material component possesses intrinsic value (e.g., an expensive gold-plated engine bolt).
Qualitative and quantitative factors are considered to determine materiality.

Focus on situations where significant components are not identified upfront on day 1.
The lecture will discuss what to do when significant components are identified later.