What if we could create a language that could be easily understood by the layman but yet enforce those rules that apply to our business domain? What if a snippet of this language could then be interpreted and performed at runtime, without the need for recompilation or redeployment of the system? Aaron Kendall shows how to build such a domain-specific language for a saavy but non-technical crowd.
More than ten years ago, software architect Kevin Perera invented a design method for architectures that was called "metadata-driven design and development". In this article, Aaron Kendall explains how to use this design method and outlines similarities as well as differences to current techniques like RESTful services or HATEOAS by implementing a metadata-driven mobile application.
Bulk data is commonly accessed via files & FTP. As the world moves toward APIs to facilitate collaboration, what are the requirements for data APIs? This article describes a meta-data driven architecture for bulk data ingestion. Two APIs operate in parallel to provide data changes as well as the data records themselves. An example demonstrates how API responses are parameterized using meta-data.
Aaron Kendall of Barnes & Noble discusses an Agile method they have been using that combines the design of the overall architecture and implementation. 1
MetaModel - an Apache Incubator project – is a Java library used to browse, query and update various types of data stores, such as RDBMS, CSV, Excel, NoSQL, etc., in a uniform and programmatic way. 4
A new Apache HCatalog provides a metadata and table management system for Hadoop ecosystem, simplifying data interoperability between different data processing tools