Dyalog delivers an APL-based development environment that allows users to create powerful software solutions. Dyalog is primarily a tool of thought, enabling subject matter experts to be key contributors in the software development process irrespective of whether they have experience within software development. Dyalog is particularly well suited when tasks are of an analytical or mathematical nature. Through rapid prototyping of both simple and complex processes, users can create reliable, flexible and high performance solutions. Today Dyalog is in daily use in many major corporations throughout the world. It is constantly being developed and enhanced to meet user requirements. Keywords: APL interpreter, APL, Software solutions, IT, Software development, Application development, Data Analysis, Data Manipulation, Integrated Development Environment, IDE, Server & Storage system, mathematical programming, rapid application development (RAD), vectors