LabVIEW Architects Forum
Meeting 2014-01-30: Let's start 2014 with LabVIEW
Meeting Logistics
- Location: Mopac C - Cafe 1 @ NI headquarters 11500 North MoPac Expressway, Austin TX
- Date: Thursday, January 30, 2014
- Time: 6:00 PM
- Duration: ~ 2 hours
- Format: presentation plus group discussion
Food: Thanks to G Systems for sponsoring food. We will need an accurate headcount, so please here. We will need National Instruments members to register as well, for that, you will get an internal invitation. If you are not sure if you are in that internal list and want to be, please let Fabiola know (fabiola@delacor.com). If you are attending remotely, there is no need to register, just let us know where you are joining us from when you log in.
Meeting Description
"Sneak Peek at Featherweight: Application Framework for LabVIEW"
Presenter:JackDunaway Est. Duration: 45 minutes
Featherweight (abbreviated FTW) is a free, open source, openly licensed application framework for LabVIEW releasing in 2014. This session will begin with an overview of the libraries currently available and guiding tenets, then we'll transition into a free-form Q&A diving into questions from the audience. Some topic ideas, beyond technical questions diving into the framework itself, include:
- Enabling cross-functional team development of large systems with interoperable tech stacks wrapped as LabVIEW APIs
- Incorporating servers into applications as simply and naturally as the File I/O API
- Data serialization techniques and persistence models
- Interoperable networking protocols and components using industry-standard APIs and toolchains
- "featherweight" application design -- minimizing the syntax-to-semantic ratio
- Differences between dynamically- vs statically-typed paradigms and languages, and how FTW attempts to bring dynamic types to LabVIEW while providing a sane API
- Declarative system and application design -versus- imperative codebases
- Semantic definitions -versus- procedural definitions (spoiler: semantics map better to human cognition, procedures map better to processors)
- "No code is better than no code" and "No state is better than no state"
- Model-View-Whatever principles for decoupling data from user interface
- Taking cues on message routing patterns from existing client/server frameworks in other languages
- On that note taking lots of cues from other patterns in other languages. Simply, learning from other languages without learning other languages.
"LabVIEW ORM (Object/Relational Mapping) framework"
Presenter: Michael Lacasse from Lowell Observatory Est. Duration: 45 minutes
Working with a relational database doesn't have to be so difficult! I present a LabVIEW ORM framework that maps LabVIEW objects and attributes to relational database tables and fields. A scripting tool converts the class structure to a MySQL script that will create the corresponding database – including foreign key linking constraints to model inheritance and class association. A simple API performs the data exchange so calling code doesn't require knowledge of the underlying database schema. This framework also uses a Reflection API I developed to provide object relationship information at run-time. I’d like to get a feel from other CLAs on if this is worthwhile refining and putting on LabVIEW Tools Network; specifically what use cases can you imagine, what hooks into the scripting tool are desirable, and what API functions are necessary.
Remote Attendance
Thanks to Sixclear for sponsoring remote connection. If you absolutely cannot make it to NI for the meeting, we have remote connection options. You will be able to participate in the meeting remotely, including viewing presentations live & joining a conference line.
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