| Feature Set | JAINSLEE vs SIP/J2EE |
| Portability | Portability of JAINSLEE is limited to number of available applications servers on the market. |
| Complexity | 1) SIP Servlet components handle directly SIP signaling, there is no abstraction layer so there is no loss in network features. 2) If a comparison between SIP Servlets and JAIN SLEE is made it can be said that JAIN SLEE is a more complex specification than SIP Servlets and it seems that JAIN SLEE has not gained much support in the SDP industry which has been dominated by servers running J2EE. |
| Protocol Agnosticism | Lagre number of protocols are supported in JAINSLEE using resource adapters. |
| Failure Handling | JAINSLEE uses ACID (Atomicity,Consistency, Isolation, and Durability) properties of transactions and features of the SLEE programming model for failure handling. |
| Network Abstraction Capability | JAINSLEE define a high level API that developers must use to access network resources. |
| Expandibility | Expandability means whether the technology supports the addition of new protocol stack into the SDP.For that purpose the technology must provide a sort of plug-in architecture. |
| Flexibility | Flexibility is high or low depending on the level of abstraction of network protocols. |
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