Create An Occasionally Connected Application?

I'm trying to teach myself how to create an Occasionally Connected Application. I want to create a simple app (like a survey) that will store all the data on a server but have the front end run on the users computer. The users computer may or may not be connected to a server when the data is entered (they may be collecting data in the field).

Program does 3 things:

1. Shows data from database (ie, displays survey data stored on server)

2. Saves data to database (ie, new entries or changes to old entries)

3. Has a background thread that checks for network connection

a. If no connection exists:

i. Gets data, to show, from local database

ii. Saves data to local database

b. If connections exists:

i. Sync local database with network database

ii. To read data: Gets data to show from local database which is now synced with network)

iii. To save changes/new entry: Save changes to local database then sync changes with network, then send update call to anyone else running this app on a different computer so they will get the same changes?