XML Schema Validator: Because "It Looks Right" Isn't Good Enough
Validating XML against a schema sounds technical. Building a tool that makes it accessible to non-developers was the real challenge.
XML Schema Validation (XSD) is a powerful concept that most people outside of enterprise software development have never heard of. A schema is essentially a contract: "Any XML file claiming to follow this standard must have these elements, in this order, with these data types."
The problem is that XSD validation tools have historically been developer-only — command-line tools, Java libraries, expensive enterprise software. Someone who manages content and needs to ensure their XML files meet a client's schema requirements shouldn't need to write code to do it.
Deecliq's XML Schema Validator gives you two boxes: paste your XML in one, paste (or upload) your XSD schema in the other, click Validate. If something's wrong, you get a plain-English explanation of what failed and where — not an inscrutable error code.
The "plain English error" part was the hardest engineering challenge. XSD validation errors are notoriously technical. Translating them into actionable human-readable messages required building a custom error interpreter. It took longer than the validator itself. But it's what makes the tool actually useful to the people who need it most.