Responsive Web Design {9}

by Edward J
Making software easy to use has been a major focal point for developers since the dawn of the microchip.  Whether or not an application or website is successful often depends on how quickly users come to familiarize themselves with an interface.  Applications that inundate users with too many buttons or options often struggle to find a wide user base. Similarly, websites that are ‘clunky’ or difficult to navigate are often left in the dust.  Even sites with solid accessibility but that are visually unappealing will find themselves with a timid following. These two issues have historically been major pains for programmers and developers who are trying to add mobile functionality to their software.  Now with the advent of CSS 3 modules, it is easier than ever for developers to provide media rich content that is customized for any type of mobile device; tablet smart phone or otherwise. read more...

Synchronizing database on mobile devices {2}

by Ricardo C
This article relates to the synchronization between mobile devices and databases. Since mobile technology as advanced and equipment have led to the emergence of a new computing environment and a variety of small sized mobile devices such as smartphones and PDAs that has been popularized. The problem is that mobile devices do not have much computing power and they rely on batteries; constant access to network is difficult due to narrow bandwidth. Mobile devices need to download the database when connected and then work off-line and by doing so there are inevitable inconsistencies between the server-side database and the mobile database. Commercial DBMS vendors offer solutions to maintain the database synchronized between the two devices however these solutions are dependent of the server-side database using dependent information such as metadata. Because of these restrictions, the extensibility, adaptability and flexibility of mobile business systems are markedly decreased. The article suggests the implementation of SAMD (Synchronization algorithms based on message digest) which resolves synchronization problems using only standard SQL queries. The SAMD makes the images at the table of the server-side database and the mobile database using a message digest algorithm; then the images and the message digest values are saved in the message digest tables on both sides. The images are compared and select the rows needed for synchronization. The SAMD would provide extensibility, adaptability and flexibility. read more...