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.
IIC: PUB: G5: V1.0: PB: 20170228- 60-