Shared online calendar vs. shared office calendar

Today, the Internet is one of the most common and convenient ways to communicate, because it is very flexible and versatile environment with lots of potential capabilities for servicing business needs, for example sharing business data. Often, shared office solutions compete against their desktop analogs.

Background for comparison of shared online calendar vs. shared office calendar:
There are a lot of services (shared office solutions) for managing business data of different types, and they are quite popular because of promising easiness and user's mobility. These shared office solutions include solutions for different purposes, such as shared online spreadsheets as alternative to Excel, shared online database to share business facts through the Internet, storages of shared online documents and shared online files for virtual project teamsetc. All kinds of shared online spreadsheets, shared online databases, shared online folders and other services are united by the common requirement – necessity of Internet connection to be used. 

Among services widely offered on the Web there is a particular class of shared office solutions for online task and time management – shared online calendars for time planning in workgroups. Shared online calendars may appear really necessary when you need to coordinate agendas of multiple persons along with announcing some team events, conferences and other joint activities.

Let's compare shared online calendar vs. shared office calendar:
Besides online (web) systems, you can find shared office calendar software that works within your corporate LAN, using your internal server, and doesn't need access to Internet. The point of this comparison is defining cases when it is preferable to use shared office calendar instead of shared online calendar, and vice versa.

Shared online calendar – this kind of calendar system works through external web-servers, recording and storing your information into shared online databases. There are some free shared online calendars like Google. You can see and manage your schedules through your web-browser along with sharing them with users at any point of the world. The main demerit of even the best shared online calendar is your dependence on the web connection, including all problems related to this (low speed of performance, remote server time-outs etc), doubtful security of your data, difficulties with uploading and reading shared online documents and other. In other words shared online calendar is not a good solution for team working within one office, because shared office calendar works better.