Chapter 2 of Discussion Paper addresses qualitative characteristics of accounting information.
It identifies qualitative characteristics that make information useful for users' decision making.Decision Usefulness is supported by two fundamental characteristics: relevance and reliability.
On the other hand, decision usefulness should be acheived in consideration for comparability and internal consistency. Those two characteristics are regarded as restrictive constrants in reaching for decision usefulness. Internal cosistency is defined as a quality in which information is consistent with the existing fundamental concepts underlying accounting standards and practices.