Why is testing important?
As the About W3C document explains: In order for the Web to reach its full potential, the most fundamental Web technologies must be compatible with one another and allow any hardware and software used to access the Web to work together. W3C refers to this goal as “Web interoperability.” By publishing open (non-proprietary) standards for Web languages and protocols, W3C seeks to avoid market fragmentation and thus Web fragmentation. Two implementations of a technology are said to be compatible if they both conform to the same specifications. Conformance to specifications is a necessary condition for interoperability, but it is not sufficient; the specifications must also promote interoperability (by clearly defining behaviors and protocols, for example). In order to promote these goals the W3C Process Document’s Proposed Recommendation entrance criteria include the requirement to demonstrate two interoperable implementations of each feature in the specification (see how this relates to
