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Application Design & Architecture

Discuss architecture design, queues, notifiers, dynamic events, dynamic VI calls, modular architectures etc. and any issues related to application design and development in LabVIEW.

1,112 topics in this forum

  1. Poll on Architecture and Frameworks 1 2 3 4

    By drjdpowell,
    • 97 replies
    • 44.7k views

  2. Action Engines... are we still using these? 1 2 3 4

    By Neil Pate,
    • 81 replies
    • 24.2k views

  3. QSM (Producer/Consumer) Template 1 2 3

    By Kas,   
    • 74 replies
    • 39k views

  4. Event Structure as State Machine 1 2 3

    By EJW,
    • 73 replies
    • 0 views

  5. Decoupling the UI 1 2 3

    By Cat,
    • 71 replies
    • 40.3k views

  6. LV2-style globals: Ever wondered whether to use While Loops or For 1 2 3

    By Aristos Queue,
    • 65 replies
    • 0 views

  7. Lapdog over the network? 1 2 3

    By GregSands,   
    • 63 replies
    • 22.9k views

  8. The care and feeding of Sequence Structures 1 2 3

    By eaolson,
    • 61 replies
    • 0 views

  9. How NOT to code large applications 1 2 3

    By JackHamilton,
    • 56 replies
    • 0 views
    • JiMM
    • JiMM

  10. Labview anti-pattern: Action Engines 1 2 3

    By Daklu,
    • 52 replies
    • 44.8k views

  11. Instructional videos on YouTube 1 2

    By drjdpowell,   
    • 49 replies
    • 33.1k views

  12. Is the day of the "Queued State machine" behind us? 1 2

    By Grampa_of_Oliva_n_Eden,
    • 47 replies
    • 0 views

  13. Intra-process signalling (was: VIRegister) 1 2

    By Steen Schmidt,
    • 46 replies
    • 24k views

  14. Self-addressed stamped envelopes 1 2

    By drjdpowell,
    • 45 replies
    • 48.5k views

  15. Q's - Whats all the fuss about 1 2

    By ShaunR,
    • 44 replies
    • 0 views

  16. How many "User Events" can LabVIEW queued? 1 2

    By MViControl,
    • 42 replies
    • 48.1k views

  17. Queue Memory Management 1 2

    By Cat,
    • 41 replies
    • 37.8k views

  18. Using multiple (2) event structures in 1 VI 1 2

    By PA-Paul,
    • 39 replies
    • 36.2k views
    • Cat
    • Cat

  19. Non-OOP Design Patterns 1 2

    By Cat,
    • 39 replies
    • 19.8k views

  20. Design advice needed for data acquisition system 1 2

    By brownx,
    • 38 replies
    • 14k views

  21. Network Queue 1 2

    By ragglefrock,
    • 36 replies
    • 0 views

  22. Re-Designing Multi-Instrument, Multi-UI Executable 1 2

    By jbjorlie,   
    • 36 replies
    • 23.7k views

  23. Namespacing objects in a build makes them "different" 1 2

    By crelf,
    • 34 replies
    • 15.8k views

  24. REx - Remote Export Framework and Remote Events 1 2

    By Norm Kirchner,   
    • 34 replies
    • 29.5k views

  25. Network Messaging and the root loop deadlock 1 2

    By John Lokanis,   
    • 32 replies
    • 17.1k views

  26. When do you use Subroutine priority? 1 2

    By Jim Kring,
    • 30 replies
    • 0 views

  27. What's the importance and Value of the Project environment? 1 2

    By LAVA 1.0 Content,
    • 30 replies
    • 0 views

  28. Event Structure vs. Variant Queues 1 2

    By jfazekas,
    • 29 replies
    • 0 views

  29. Factoring Code and Instantiating Parallel Processes in subVIs 1 2

    By AlexA,
    • 29 replies
    • 14k views

  30. Robustness of Functional Global pattern at large scales? 1 2

    By Mechatroner,
    • 29 replies
    • 14.7k views

  31. Need Help for making an image drop down menu 1 2

    By Farid2010,
    • 28 replies
    • 12.6k views

  32. Error Handling in messaging systems 1 2

    By John Lokanis,   
    • 28 replies
    • 12.6k views

  33. Events or Queues 1 2

    By Bhaskar Peesapati,
    • 27 replies
    • 15.6k views

  34. Notifier with buffer 1 2

    By Mads,
    • 27 replies
    • 17.2k views

  35. My clever design...is NOT clever 1 2

    By pete_dunham,
    • 27 replies
    • 10.8k views

  36. Development Environment Toolbar 1 2

    By JDave,
    • 27 replies
    • 0 views

  37. How do you model this? 1 2

    By Daklu,
    • 26 replies
    • 23.9k views

  38. A query on queues: how to retrieve the number of remaining refnums 1 2

    By asbo,
    • 26 replies
    • 9.9k views

  39. Simple Event-Driven Queued State Machine with Front Panel Events and a Timer 1 2

    By JDave,
    • 25 replies
    • 0 views

  40. Best way to pass data to a dynamic VI? 1 2

    By John Lokanis,
    • 25 replies
    • 0 views

  41. How to get return data from a dynamically called vi? 1 2

    By Daklu,
    • 25 replies
    • 0 views

  42. Best Practices in LabVIEW 1 2

    By John Lokanis,
    • 25 replies
    • 26.2k views

  43. Object-Based State Machine Pattern

    By Daklu,
    • 24 replies
    • 27.2k views

  44. Data Logging: Queues or Circular Buffers

    By LAVA 1.0 Content,
    • 24 replies
    • 0 views

  45. Configuring Many Instruments

    By jeffwass,
    • 24 replies
    • 0 views

  46. plugin HAL

    By 0_o,
    • 23 replies
    • 15.4k views

  47. Best way to share data from different subpanels?

    By Labview Junky,   
    • 23 replies
    • 22.9k views

  48. Strict Variant <-> Numeric conversion

    By mike5,
    • 23 replies
    • 9.8k views

  49. Delacor Queued Message Handler (DQMH) available via LVTN

    By Fab,   
    • 23 replies
    • 17.4k views
    • Fab
    • Fab

  50. Multiple While Loops

    By AlexA,
    • 22 replies
    • 43.7k views
    • ned
    • ned

  51. Application Task Kill on Exit?

    By hooovahh,
    • 22 replies
    • 20.1k views

  52. Coding Technique and Motion Controller

    By bono02,
    • 22 replies
    • 0 views

  53. Occasional loop hangup in executable - how to find the source?

    By george seifert,
    • 22 replies
    • 0 views

  54. Deterministic video output

    By Tomi Maila,
    • 22 replies
    • 0 views

  55. Dealing with State in Message Handlers

    By AlexA,
    • 21 replies
    • 7k views

  56. Multiple Test Executives

    By NeilA,
    • 21 replies
    • 11.5k views

  57. Have you ditched TestStand to roll your own sequencer?

    By Norm Kirchner,
    • 21 replies
    • 23.6k views

  58. Saving VI settings to a file

    By BrokenArrow,
    • 21 replies
    • 0 views

  59. Configure ini file simplicity in 7.0?

    By Jim Kring,
    • 21 replies
    • 0 views

  60. Generating event off windows message queue

    By GregFreeman,   
    • 21 replies
    • 12.6k views

  61. Eleven Ways to Update an Indicator from within a subVI. Their Relative Performances and Quite Far Reaching Consequences...

    By styrum,
    • 20 replies
    • 13.9k views

  62. sensor calibration test

    By kmc,
    • 20 replies
    • 0 views

  63. DVR, SEQ, FGV, Semaphores

    By ned,
    • 20 replies
    • 15.2k views
    • ned
    • ned

  64. Software architecture for modular measurement system in a battery and electronics testing laboratory

    By Istvan K,
    • 20 replies
    • 6.8k views

  65. Do Queues need semaphore protection for a Read Only op?

    By TG,
    • 20 replies
    • 0 views

  66. Memory Fragmentation

    By John Lokanis,
    • 20 replies
    • 0 views

  67. Simple Modular MVC

    By abrink,   
    • 20 replies
    • 15k views

  68. Adjusting (fit) two together function

    By mimi25,
    • 20 replies
    • 5.6k views

  69. Examples: Messaging with objects, Command and State Patterns, configuration with XML

    By PaulL,
    • 20 replies
    • 20.9k views

  70. Clone Wars!

    By John Lokanis,
    • 20 replies
    • 0 views

  71. Calling VIs in main program from Dynamic VIs

    By ars_stowers,
    • 19 replies
    • 0 views

  72. app in background terminates

    By Yair,
    • 19 replies
    • 0 views

  73. Multi-user acess to cRIO

    By BradPID,
    • 19 replies
    • 10.3k views

  74. Strict TypeDef Referencing

    By m3nth,
    • 19 replies
    • 0 views

  75. Application configuration data storege

    By pawhan11,
    • 19 replies
    • 7.5k views

  76. XControls and user events

    By Ton Plomp,
    • 19 replies
    • 10.7k views

  77. Generate my own input signal for a device

    By scls19fr,
    • 19 replies
    • 0 views

  78. Event handling from subVIs

    By pandaman,
    • 19 replies
    • 0 views

  79. I Got A Question . . .

    By xShadowDanx,
    • 19 replies
    • 0 views

  80. Question about the JKI state machine

    By eberaud,   
    • 18 replies
    • 14.9k views

  81. passing data to vi launched using Run VI method

    By JohnRH,
    • 18 replies
    • 0 views

  82. A Robust Technique for Controlling a Parallel Processing Loop?

    By AlexA,
    • 18 replies
    • 19.9k views

  83. Calling other VIs to execution

    By Pollux,
    • 18 replies
    • 0 views

  84. Another reason why "copy dots" is a bad name for "buffer allocations"

    By Aristos Queue,
    • 18 replies
    • 0 views

  85. Dynamic events in XControls?

    By DaveKielpinski,
    • 18 replies
    • 0 views

  86. Commenting Code (in a condensed fashion)

    By lavezza,
    • 18 replies
    • 0 views

  87. Producer/consumer and processing loads

    By Gary Rubin,
    • 18 replies
    • 6.3k views

  88. Copying change from an individual cluster element to multiple clusters

    By Mads,
    • 17 replies
    • 7.6k views

  89. reverse string but not esc'd special chars?

    By John Lokanis,
    • 17 replies
    • 7k views

  90. CLA Exam Question

    By Daklu,
    • 17 replies
    • 25.2k views

  91. Decouple UI and application core - need advice

    By candidus,
    • 17 replies
    • 7k views

  92. Sequencing alternatives to the QSM

    By PHarris,   
    • 17 replies
    • 8.1k views

  93. An attempt to reduce the number of event structure cases in my UIs

    By MarkCG,
    • 17 replies
    • 6.2k views

  94. Software Versioning Suggestion

    By viSci,
    • 17 replies
    • 7.3k views

  95. Updating a middle element of a variant tree

    By John Lokanis,
    • 17 replies
    • 6.1k views

  96. MVC through class control - feedback required

    By 0_o,
    • 17 replies
    • 9.3k views
    • 0_o
    • 0_o

  97. Question about the use of ProducerConsumerData (Multiple Queues)

    By bigl00z3,
    • 17 replies
    • 0 views

  98. Re-entrant VI with Front Panel

    By jgcode,
    • 17 replies
    • 13.3k views

  99. publish subscriber

    By Eugen Graf,
    • 17 replies
    • 0 views

  100. Write to Text File problem

    By GraemeJ,
    • 16 replies
    • 0 views
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