Microsoft announced certification exam 70-599 – Designing and Developing Windows Phone 7 Applications few months back. The exam will be published on July 14, 2011.

Peter Kuhn has authored a five-part series on SilverlightShow to help developers prepare for the certification exam. The structure of this article series is based on the measured skills outline available from Microsoft to make it easy to follow along and map what you learn to the requirements of the exam.
Designing Data Access Strategies (19%)
This part details sending and receiving data as well as designing a data storage strategy.
Designing and Implementing Notification Strategies (17%)
This part discusses Push Notifications and surrounding topics.
Working with Platform APIs, Tasks, and Choosers (21%)
This part concentrates entirely on the phone and talks about some of the features the platform offers for your application.
Designing the Application Architecture (21%)
This part takes a look at the overall architecture of an application and unique concepts of the Windows Phone platform as well as tuning your application for performance and marketplace certification.
Designing the User Interface and User Experience (23%)
This last part focuses on the user interface and user experience on the phone, from best practices in programming to recommendations and requirements for creating a consistent and convenient experience in your software.


