This document discusses instructional design for web-based learning environments. It outlines typical phases of instructional design models including analysis, design, production, implementation and maintenance. It emphasizes the importance of learner analysis and front-end analysis when designing for the web. Key steps in the design process include defining objectives, content, teaching approaches, and technical and user requirements. The document also discusses selecting appropriate media and formats, and designing interactive components like tutorials, assessments, and support tools for the learning environment. Formative evaluation involving expert review and student tryouts is recommended during the development process.