Build them from components. This option is faster and less expensive than the first
one. The site owner purchases off-the-shelf components (or sometimes obtains them
for free), such as a shopping cart, an e-catalog, and a payment gate, and then assembles
them. The site owner can replace the components if they become obsolete; therefore,
the site owner can save on maintenance. The downside is that the resulting site may
not fit the online business owner’s needs very well.