Common Design Patterns for Symbian OS is the first book of design patterns which specifically address Symbian OS. To do this, then: Provide a pattern based on the Symbian OS architectural elements Describe how patterns suited for non-mobile software must be adapted or even avoided for Symbian OS Symbian OS-based Provides code examples and illustrations Each chapter covers patterns that address specific key issues faced by developers: memory performance, time performance, power performance, security and responsive. Where possible examples are given to design patterns will directly reflect the software in Symbian OS. Common Design Patterns for Symbian OS is intended to be used in conjunction with one or more SDKs for specific Symbian OS phones and with the resources available on Symbian DevNet web site.