Products that are proactive in detecting future viruses will be given a three. Conversely, products that are reactive will be given a one because they require updates. Size restriction considers the software file size in relation to the file space on the device. Release date refers to the date a full-version of the product first became available. Products with earlier release dates will be ranked higher because of increased consumer evaluation and subsequent revisions.
Price is the estimated or suggested retail price for each product.
Ease of use describes how uncomplicated the software is to install, configure, and update. Products that are easier to use will be given higher scores. Company reputation, though weighted the lowest, is still relevant because a reputable company is more likely to produce a product that consumers feel is reliable and trusted. Based on the above criteria, the anti-virus product receiving the highest total score will be deemed the best solution. The evolution of PDAs can be closely compared to the evolution of the personal computer.