However system benefits make it more difficult to provide an efficient service. Software focuses on effectiveness, the web also adds system benefits. Novelty frequently creates performance problems, it can often be unreliable and may impair usability. Participation software creates major performance problems, it is often unreliable, can easily break trust, and may have poor usability. Emotional involvement can distract from attention, reducing usability.
Comfort reduces performance, but improves usability.
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