type-oriented construction of web user interfaces
This paper proposes a new technique for the high-level construction of type-safe web-oriented user interfaces. Our approach is useful to equip applications processing structured data with interfaces to manipulate these data in an efficient and maintainable way. The interfaces are web-based, i.e., the data can be manipulated with standard web browsers without any specific requirements on the client side. In order to support type-safe user interfaces, i.e., interfaces where users can only input type-correct data (types can be standard types of a programming language as well as any computable predicate on the data), we propose a set of type-oriented building blocks from which interfaces for more complex types can be easily constructed. This technique leads to a very concise and maintainable implementation of web-based user interfacesWe show an implementation of this concept in the declarative multi-paradigm language Curry. In particular, its integrated functional and logic features are exploited to enable the high level of abstraction proposed in this paper.
user interfaces web programming functional logic programming