Symbian mobile platform is developed and used by a industry aliance led by Nokia and include Ericsson, Panasonic, Samsung, Siemens, and Sony Ericsson. It is used by over 60% of the mobile devices that exist on the market today.

• Symbian platform defines a standard framework for the life cycle of and interaction between mobile applications.
• It allows applications to call modules supported by the platform, such as network and storage
• Applications on Symbian platform primarily uses C++

More on Symbian

The core technology for decision support systems is multi-dimensional data warehousing. In this model:

• The data for analysis are organized as cubes.
• The measure of the cubes are pre-aggregated transactional data, e.g., the sales amount per store per hour.
• The dimensions of the cubes are stored as look-up tables, e.g. geography as one dimension, and time as another dimension.
• From this model, it is easy to compute summary results such as sales per quarter or sales per geography region.

More on decision support systems

Web service is a programming architecture where a server responds to web requests with XML documents. The two major protocols of web services are:

• REST. The request parameters of REST is embedded within a URL.
• SOAP. The request parameters of SOAP is sent to the server as an XML document.

To publish the functionalities of web services of web services to programmers, an enterprise typical chooses between one or both of the following style:

• Publish a WSDL definition. This is a programmatic way of iterating through the syntax of all web service request and response types using XML
• Publish a human readable document

Many companies use web metrics to monitor the performance of their web site and improve the web site based on the information collected. Here are some examples of the measurements:

• Total user count and unique user count
• User conversion and attrition, e.g., how many new accounts were opened.
• User segmentation by geography, time zone, language, age, etc.
• Page view duration
• Page references, e.g. how many users navigated from movie page to music page
• Funnel rate. For example, if the check out process of a shopping cart involves three steps, how many users have only reached the first step, how many users have only reached second step, and how many users completed the purchase.