What is the difference between as2 and as3

AS2 transactions and acknowledgements also occur in real-time, increasing the efficiency of document exchanges. The U. S company Walmart was one of the first companies to help drive the adoption of AS2 across the retail sector. AS3 may be especially well suited for banking and other industries where there are heavy investments in FTP scripting, applications and security.

AS4 is still in its draft definition format. The AS4 profile provides the market place with an entry level solution that allows companies to begin utilising their internal SOA based platforms for external B2B messaging while at the same time taking on some of the more complicated aspects of web services.

Further information about AS4 can be found on the Drummond Group site, here. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. What is the difference between ActionScript 2. Asked 10 years, 5 months ago. Active 10 years, 5 months ago. Viewed 32k times. What are the main differences between the versions? Improve this question. Ramu Ramu 61 1 1 gold badge 1 1 silver badge 3 3 bronze badges.

Add a comment. Second, look for variable typing. It's not required in either version but a lot more people type their variables in AS Lastly, look for function return types.

The majority of functions in either language will be returning void Some of the cases that require additional thought and planning are described below. As described above, properly configured MDNs provide a high degree of non-repudiation.

However, the recipient never knows for sure whether the sender received or verified a requested MDN. TCP networking uses a "three-way" handshake to avoid a similar problem. The three handshakes in TCP are:. The ASx protocols specify only two of three possible "handshakes": an ASx file recipient never finds out what the file sender thinks of the MDN the file recipient created. This limitation can lead to several issues:. The ASx protocols require that MDNs get sent as soon as an ASx message recipient can decrypt, validate the signature of and verify the contents of a data file.

In other words, after an MDN has been successfully sent, it is now the recipient's sole responsibility to not lose the decrypted file or at least retain and be able to decrypt the original file at will. If internal processing or delivery errors crop up, they are the file recipient's sole responsibility and MDN technology can not be used to notify the sender about any data file format or content problems.