Tampilkan postingan dengan label Disadvantages. Tampilkan semua postingan
Tampilkan postingan dengan label Disadvantages. Tampilkan semua postingan

Senin, 24 Oktober 2011

Disadvantages


Cost of implementation;Larger scale implementations may require training, planning, and certifications. Certain CMSs may require hardware installations. Commitment to the software is required on bigger investments. Commitment to training, developing, and upkeep are all costs that will be incurred for enterprise systems.[10]
Cost of maintenance
Maintaining CMSs may require license updates, upgrades, and hardware maintenance.
Storage Volume
Volume of files may be large in HTML-based systems. A site that contains many files leaves itself open to errors. For example, a client updating the site may create errors; large amounts of files can cause issues with updating. Trying to find the right file may take time, and may be hard to find.
Latency issues
Larger CMSs can experience latency if hardware infrastructure is not up to date, if databases are not being utilized correctly, and if cache files that have to be reloaded every time data is updated grow large.Load balancing issues may also impair caching files.
Tool Mixing
Because the URLs of many CMSs are dynamically generated with internal parameters and reference information, they are often not stable enough for static pages and other Web tools, particularly search engines, to rely on them.

Disadvantages

Search engines work by creating indexes of published HTML web pages that were, initially, "static". With the advent of dynamic web pages, often created from a private database, the content is less visible[2]. Unless this content is duplicated in some way (for example, as a series of extra static pages on the same site), a search may not find the information it is looking for. It is unreasonable to expect generalizedweb search engines to be able to access complex database structures, some of which in any case may be secure.

Disadvantages

The primary disadvantage of analog signaling is that any system has noise – i.e., random unwanted variation. As the signal is copied and re-copied, or transmitted over long distances, these apparently random variations become dominant. Electrically, these losses can be diminished by shielding, good connections, and several cable types such as coaxial or twisted pair.

The effects of noise create signal loss and distortion. This is impossible to recover, since amplifying the signal to recover attenuated parts of the signal amplifies the noise (distortion/interference) as well. Even if the resolution of an analog signal is higher than a comparable digital signal, the difference can be overshadowed by the noise in the signal.

Most of the analog systems also suffer from generation loss.