Connectivity Framework Annex A : Assessment Template : DDS
A . 6.2 Business Viewpoint
A . 6.2.1 Purpose ( Section 6.2.1 )
Give the general motivation and expectation for the Connectivity Technology . This section provides the business rationale . It communicates the fundamental " why and what " for the project .
The OMG DDS standard helps users reliably and securely harness ever-increasing amounts of device generated data while processing the data in real-time , and acting on events as quickly as they occur . As a result , it enables smarter decisions , new services , additional revenue streams and reduced costs . The OMG DDS middleware standard can also simplify the development , deployment and management of IoT applications , speeding time-tomarket .
DDS Databus
Seamless data sharing regardless of :
Proximity Platform Language
Physical network Transport protocol Network topology
According to the OMG DDS portal , based on the use of DDS in thousands of applications , one can predict the need for DDS in new projects . If you answer yes to most of the following questions , DDS is likely to be your go-to solution .
• Are the consequences of short downtime severe ? If your system goes offline for 5 minutes ( or even 5 milliseconds ), is it a serious problem ? Since DDS does not require servers that could fail and supports redundancy , it makes “ fast ” reliability and availability much easier . DDS also eliminates struggles with server configuration , startup order , or failover to backup servers .
• Do you require sub-second response ? DDS direct peer-to-peer messaging can deliver in milliseconds or even a few microseconds .
• Do you have more than a few software modules or software teams ? The databus abstraction will define the interfaces , capture the dataflow , enable module evolution and enforce interoperation between teams .
• Do you have to supply data to many modules , or have too much data to send it all to one place ? DDS selective filtering makes it easy to find and deliver exactly the right data .
• Are you building a new IIoT architecture ? DDS is not usually used in “ retrofit ” applications . Typical systems are software projects take more than a year to write , last more than three years , go through multiple versions .
These questions help identify your critical performance , reliability , and integration needs . If you answer yes to any of these questions , you should evaluate DDS as a solution , since it offers many additional benefits .
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