Mobile applications are some of the most accessible pieces of software on the market today. This is due to the low cost of the applications themselves, a low barrier of entry for developers, and the growing number of devices owned by consumers. A continuously successful application requires great design and development and it is rare to find somebody who is an expert at both.
When I’m creating a GUI based application, I spend way too much time trying to line up individual components or determining the ideal layout. This usually is not even for the final product, just to get it good enough to pass off to the designer. Some features will inevitably be missing or not quite to the designers liking, so another development pass has to be made. This might be unavoidable if the software is a game changer or trying to create fun, but the fact of the matter is with most mobile applications (and software in general) a lot of time is spent reinventing the wheel and the inevitable feature-creep.

A solution: the bleuprint! A well made bleuprint will streamline the development process. The majority of bugs and crashes from software come in when the design changes mid-development and existing code is altered as quickly as possible to stay on schedule. With an application bleuprint in hand, I’ve found two common development paths to follow: developing the application in feature sections by adding the functionality as the screens are created or laying out all the screens and transitions and then start adding the functionality.
The development path chosen will depend upon the complexity of the application. A complex workflow might be hard or nearly impossible to layout all the screens without doing a lot of extra or unnecessary work. When the application allows for it, I prefer the method of laying out all the screens initially. This allows for testing of the overall UI flow and any kinks can be worked out early. Once the UI is set, you can just pick off the key features and get to fun part of developing. With mobile applications, updates and added features are commonplace. Focus your energies on what you are great at and hit the gate with great design and development on the key features.