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MOBILE APPLICATION CASE STUDY
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##### Mobile Application Adaptation and Optimization
Application targeting for mobile devices requires to consider the constraints these devices pose. Mass market devices are low end. They have limited processing capabilities and have low runtime memory. After going through a series of changes as proof of concept on smartphones, when the customer wanted to productize the concept - there were new challenges thrown to make the application adapt and work in a low end handset. On the basis of discussions held with different device vendors following targets were set - a. Adapting the software to real handset platforms b. Optimizing the code size and runtime memory usage to acceptable levels The approach taken was based on the experience on different smartphone ports and knowledge of handset platforms. This range varied from Windows CE and Symbian to Riviera. Adaptation ---------- The approach was to identify the platform dependent aspects of application behavior. The most critical were identified to be GPRS, networking and audio subsystems. Other dependencies more or less have uniform behavior on all the platforms. Optimization ------------ Optimization had two aspects - one in terms of memory usage and another in terms of performance. Compile time memory reduction was done through careful code review and by following compiler optimization tips provided by different target chipset based compilers such as ARM. Runtime memory optimization had a bearing on system performance and GPRS conditions. However, due to limited availability of memory it had to be brought to optimal levels with acceptable performance levels. CPU performance and resource usage impacts the battery usage of the handset. Hence application required modifications to minimize the resource usage and reduce unwanted CPU cycles. Major Challenges ---------------- Major challenges in the project were * understanding of programming environments on various handsets. * understanding system behavior for networking and audio subsystems. * anticipating porting problems for a totally different handset. * memory optimization versus application performance. Learning -------- * Understanding of constrained programming environments. * Typical porting issues for applications on handsets. * Performance tuning.
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Synergy Infotech moves to a new facility
| 06 June 2004
Beta version of the ASN.1 Compiler available for customers.
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This project demonstrates the ability of Synergy Infotech to undertake maintenance projects executed using the offshore model.
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