The Designing .NET Class Libraries series presents design guidelines for developing classes and components that extend the .NET Framework. The goal of the Designing .NET Class Libraries series is to encourage consistency and predictability in public APIs while enabling Web and cross-language integration. The guidelines presented in Designing .NET Class Libraries are intended to help class library designers understand the trade-offs between different solutions. There might be situations where good library design requires that you violate these design guidelines. Such cases should be rare, however it is important that you provide a solid justification for your decision.