Part 1 Fundation# Document for WebGIS fundation. 1. Principle 1.1. Map and WebGIS 1.2. Basic concept of WebGIS 1.3. Introduction to major open source WebGIS 1.4. Principle and method of HTTP 2. WebGIS related standards and specifications 2.1. WebGIS related standards of OGC 2.2. OpenGIS map service specification 2.3. Geographic Web service 2.4. Interoperability and geospatial Web service standards 2.5. Preliminary understanding and Reading of WMTS Service