ember-data is a data persistence extension for the Ember.js framework.

Gatsby is a free and open source framework based on React that helps developers build blazing fast websites and apps

Dialogflow ES is the "classic" version of Dialogflow from Google, providing a Natural Language Understanding system you can integrate with your programs, and allowing you to build simple conversational agents or chatbots for a variety of platforms using an API or web-based UI. For the more complicated flow-based tool from Google, see the dialogflow-cx tag. For specific issues writing webhook fulfillments, see the dialogflow-es-fulfillment tag.

Hosting refers to the commercial service offered by companies that let you run websites using their servers. Questions about server technology should be asked at serverfault.com and more general questions should be asked at webmasters.stackexchange.com.

Xcode 4, released in June 2011, is Apple's integrated development environment (IDE) for Mac OS X and iOS. This tag should only be used for questions about this specific version of Xcode, and not for general Mac or iOS programming topics. Use [cocoa] for Mac programming questions, or [cocoa-touch] for iOS (formerly iPhone OS) programming questions.

A hook refers to replacing or extending a system or application's default behavior with a custom behavior for a specific event. For keyboard hooks prefer the tag [keyhook]. For git related hooking use the tag [githooks] alone. For hooking web services use the tag [webhooks] instead. For React hooks use tag[react-hooks].

Apache CXF helps you build and develop services using frontend programming APIs, like JAX-WS and JAX-RS. These services can speak a variety of protocols such as SOAP, XML/HTTP, RESTful HTTP, or CORBA and work over a variety of transports such as HTTP, JMS or JBI.

Questions related to retrieving specific information from a (typically minimally structured) data source, such as a web site, media file, source code collection or compressed archive (in which case the desired information is one or more original, uncompressed files). When using this tag, please include additional tags to clarify which specific environment/language/scenario your question refers to.

WAMP refers to a web development software stack utilizing Windows, Apache Web Server, MySQL database, and the PHP programming language. Compare with LAMP.

Spark Streaming is an extension of the core Apache Spark API that enables high-throughput, fault-tolerant stream processing of live data streams. From the version 1.3.0, it supports exactly-once processing semantics, even in face of failures.

ETL is an acronym for Extract, Transform, and Load. It refers to a process of extracting data from source systems, transforming the data in some way (manipulating it, filtering it, combining it with other sources), and finally loading the transformed data to target system(s).