From d07ae0d39c4c6fde0f67e8b227ccefb977320985 Mon Sep 17 00:00:00 2001 From: Pedram Hadjian Date: Thu, 1 Jun 2023 23:49:36 +0200 Subject: [PATCH 01/10] Added vision.org and initial proposal --- .gitignore | 1 + design/0001-vscode-extension-wot-cli.org | 39 ++++++++++++++++++ vision.org | 52 ++++++++++++++++++++++++ 3 files changed, 92 insertions(+) create mode 100644 .gitignore create mode 100644 design/0001-vscode-extension-wot-cli.org create mode 100644 vision.org diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..b25c15b --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +*~ diff --git a/design/0001-vscode-extension-wot-cli.org b/design/0001-vscode-extension-wot-cli.org new file mode 100644 index 0000000..7e5c0db --- /dev/null +++ b/design/0001-vscode-extension-wot-cli.org @@ -0,0 +1,39 @@ +#+TITLE: Milestone 1: +#+AUTHOR: Pedram Hadjian + +* Goal + +The following is a suggestion of a first milestone to be discussed in the community. The ediTDor project currently helps in the creation and validation of Thing Models and Thing Descriptions. It uses JSON Schema to validate the content and adds a visualization of the TM/TD as a rendered interactive HTML site. + +There have been many requests to turn this project into a VSCode extension and make the rendering available separately like swagger-ui, to be rendered in code forges like gitlab or github. Also the functionality of validation should be usable in CI/CD pipelines, so it should be available as a separate library/cli. + +In addition, while developers can create syntactically valid TMs/TDs, there is no way of knowing, if we can actually use these descriptions to communicate with the modeled device, let alone automatically validate the communication in a CI/CD pipeline. + +* Proposal + +In short: start to create a VSCode extension, which uses JSON Schemas to validate TMs/TDs. Also provide a cli and a library, which provides the same JSON Schema validation for use in a CI/CD pipeline. In addition the cli should integrate in a simple way with a protocol driver to test communication with a device. To "prove" successful communication, the recorded timeseries should be persistable to a file to be committed to a repository, where this communication can be validated. + +I see the following tasks to achieve the above: + +- Create a VSCode extension that syntactically validates TMs/TDs +- Context extensions of JSON-LD may be used to map to JSON Schemas +- Provide wot-ui to create HTML pages for TMs/TDs +- Introduce a wot-cli +- wot-cli can validate TMs/TDs against JSON Schemas +- wot-cli can generate stubs for a protocol driver to communicate with it +- wot-cli can be used to communicate with an implementation of those stubs +- wot-cli can observe properties and events and record them in timeseries +- wot-cli can generate appropriate CSV protocol bindings +- wot-cli can add protocol bindings to TMs to exchange field level bindings with CSV ones + +As a bonus step, it would be nice to also integrate tcddump/wireshark to examine what is generated on-wire by the protocol driver and display it in VSCode for debugging. + +* Next Steps + +- Ask questions, if the proposal is unclear +- Do you have a better suggestion for a starting-point? +- Is there something that seems not doable conceptually? +- Work with the community towards agreement +- Break-down tasks and start developing + +As the discussion on github proceeds, I will update the document until we reach consensus. diff --git a/vision.org b/vision.org new file mode 100644 index 0000000..9119f46 --- /dev/null +++ b/vision.org @@ -0,0 +1,52 @@ +#+TITLE: The Future of the ediTDor +#+AUTHOR: Pedram Hadjian + +* Vision + +The Web of Things enables us to represent operational digital twins in an interoperable way. The main problem for IoT developers is the access to and understanding of data. Data in the context of IoT can broadly be split into two different categories: + +1. Timeseries Data: data coming from sensors, oftentimes called signals, runtime data, samples or others + +2. Contextual Data: this type of data answers questions about types of devices, interpretation of timeseries values, topology of assets and locations, taxonomies and more. Sometimes this type of data is called the semantics. + +We do not have a consistent way to work with these kinds of data. While normal software developers happily whip out VSCode, IntelliJ, emacs or vim, install a language server and make use of a myriad of libraries to get things done, IoT developers struggle to even access and understand data, let alone deliver value on top of it. + +In this open source project, we set out to change this. The vision is to bridge the gap between the two scenarios. We will focus on the developer experience and if we succeed, an IoT developer will be able to create or better just fetch device twins, model the context, write code and deploy to production. + +The vision is grand, but we need to start small. At Siemens we published the open source [[https://github.com/eclipse/editdor][ediTDor]] project, which helps to write and syntactically validate TMs/TDs. We will pick this up and drive it towards an awesome Digital Twin development environment. + +* Target Audience + +/IoT Developer/ is a very abstract role and for many an over-simplification. There are developers who create protocol driver code, experts who are knowledgeable about a domain, ontologists, application developers, system integrators etc. + +In a large corporation, these roles might be well organized and fulfilled by different people. However, I was more often than not also part of a team of 2-3 normal software developers that were responsible to go to a customer site, access devices, build up the infrastructure and write the application. + +Oftentimes we received input from the roles mentioned above and we used Thing Descriptions to formalize the gathered information in a machine-readable format. + +My suggestion is to target this full-stack IoT developer at first, as it feels less overwhelming. I also feel that expanding out to the different roles in a later stage will still be possible. Your comments are welcome. + +* Developer Experience - Discovering the ediTDor + +To get started, the following narrative describes how an IoT developer might discover our project and try it out without much setup. Technical details are glossed over. It's about the big picture: + +An IoT developer will discover our project via different channels like the eclipse umbrella, talks at conferences, blogs etc. The message must be consistent and exciting: a great experience for IoT developers on top of familiar and standardized technologies. + +The project web site states the pitch again and offers a VSCode extension as well as sample projects accompanied by tutorials. Ideally there is one tutorial for each of the different industries, e.g. [[https://github.com/bbartling/open-fdd][Ashrae FDD rules]] for buildings, [[https://www.kaggle.com/c/bosch-production-line-performance][Production Line Performance]] for manufacturing, [[https://www.kaggle.com/c/bosch-production-line-performance][Peak Shaving]] for energy etc. + +Once cloned, the developer examines the contents of the repository, which contains a couple of directories with names that hint at the concept. Names like "thing_models", "thing_descriptions", "protocol_bindings", "timeseries", "src" etc. Further examining the files within those directories should also be self-explanatory. When opening a file, a rendered version might be displayed next to the file, e.g. a TD with a CSV protocol binding to a timeseries might render that timeseries below a property. + +Impatient as developers are, they should be able to gloss over the source code and execute it. The program will output some meaningful log. + +Excited about this way of working they will start reading the tutorial, which explains how to add a device to the project and re-execute the program to see their addition being integrated. + +This step should also avoid big runtime setups, so we should prepare the timeseries of the new device in a simulator and expose them via the field level protocol. The developer will learn how to capture those time series in a CSV and exchange the field-level protocol bindings with the appropriate CSV ones. + +Satisfied with the results, the developer wants to take it to the next level. This might be one of the topics listed below, which we can turn into narratives once we proceed. + +- Create higher level things like rooms or production lines +- Integrate this whole experience with IoT platforms like Shifu, plgd or Azure +- Integrate their ontology to guide TM/TD developers with validation +- Provide a way to share and discover TMs in a public or private catalog +- ... + + From 6359e75057ef370be7ac124129efd4006bb3ea55 Mon Sep 17 00:00:00 2001 From: Pedram Hadjian Date: Fri, 2 Jun 2023 00:26:44 +0200 Subject: [PATCH 02/10] Renamed file name to match issue number / Changed Title --- ...-extension-wot-cli.org => 0002-vscode-extension-wot-cli.org} | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) rename design/{0001-vscode-extension-wot-cli.org => 0002-vscode-extension-wot-cli.org} (98%) diff --git a/design/0001-vscode-extension-wot-cli.org b/design/0002-vscode-extension-wot-cli.org similarity index 98% rename from design/0001-vscode-extension-wot-cli.org rename to design/0002-vscode-extension-wot-cli.org index 7e5c0db..2af56a5 100644 --- a/design/0001-vscode-extension-wot-cli.org +++ b/design/0002-vscode-extension-wot-cli.org @@ -1,4 +1,4 @@ -#+TITLE: Milestone 1: +#+TITLE: VSCode Extension and wot CLI #+AUTHOR: Pedram Hadjian * Goal From d21f3b2577dd852a03d46d11509684e1c5a305a7 Mon Sep 17 00:00:00 2001 From: Pedram Hadjian Date: Tue, 20 Jun 2023 13:08:25 +0200 Subject: [PATCH 03/10] Added workflow diagram to vision document --- media/wot-workflow.drawio.svg | 4 ++++ vision.org | 26 +++----------------------- 2 files changed, 7 insertions(+), 23 deletions(-) create mode 100644 media/wot-workflow.drawio.svg diff --git a/media/wot-workflow.drawio.svg b/media/wot-workflow.drawio.svg new file mode 100644 index 0000000..a0ad1fe --- /dev/null +++ b/media/wot-workflow.drawio.svg @@ -0,0 +1,4 @@ + + + +
Author/Generate TMs
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Write Application CodeText is not SVG - cannot display \ No newline at end of file diff --git a/vision.org b/vision.org index 9119f46..ea1d35f 100644 --- a/vision.org +++ b/vision.org @@ -25,28 +25,8 @@ Oftentimes we received input from the roles mentioned above and we used Thing De My suggestion is to target this full-stack IoT developer at first, as it feels less overwhelming. I also feel that expanding out to the different roles in a later stage will still be possible. Your comments are welcome. -* Developer Experience - Discovering the ediTDor - -To get started, the following narrative describes how an IoT developer might discover our project and try it out without much setup. Technical details are glossed over. It's about the big picture: - -An IoT developer will discover our project via different channels like the eclipse umbrella, talks at conferences, blogs etc. The message must be consistent and exciting: a great experience for IoT developers on top of familiar and standardized technologies. - -The project web site states the pitch again and offers a VSCode extension as well as sample projects accompanied by tutorials. Ideally there is one tutorial for each of the different industries, e.g. [[https://github.com/bbartling/open-fdd][Ashrae FDD rules]] for buildings, [[https://www.kaggle.com/c/bosch-production-line-performance][Production Line Performance]] for manufacturing, [[https://www.kaggle.com/c/bosch-production-line-performance][Peak Shaving]] for energy etc. - -Once cloned, the developer examines the contents of the repository, which contains a couple of directories with names that hint at the concept. Names like "thing_models", "thing_descriptions", "protocol_bindings", "timeseries", "src" etc. Further examining the files within those directories should also be self-explanatory. When opening a file, a rendered version might be displayed next to the file, e.g. a TD with a CSV protocol binding to a timeseries might render that timeseries below a property. - -Impatient as developers are, they should be able to gloss over the source code and execute it. The program will output some meaningful log. - -Excited about this way of working they will start reading the tutorial, which explains how to add a device to the project and re-execute the program to see their addition being integrated. - -This step should also avoid big runtime setups, so we should prepare the timeseries of the new device in a simulator and expose them via the field level protocol. The developer will learn how to capture those time series in a CSV and exchange the field-level protocol bindings with the appropriate CSV ones. - -Satisfied with the results, the developer wants to take it to the next level. This might be one of the topics listed below, which we can turn into narratives once we proceed. - -- Create higher level things like rooms or production lines -- Integrate this whole experience with IoT platforms like Shifu, plgd or Azure -- Integrate their ontology to guide TM/TD developers with validation -- Provide a way to share and discover TMs in a public or private catalog -- ... +* High Level Workflow +The diagram below depicts a high-level workflow for working with Thing Models/Thing Descriptions. This will help us to map existing components into the picture and identify gaps, which need to be filled. +[[media/wot-workflow.drawio.svg]] From 8f61177f6e11e6b56173bac20b954fbc64c1c82a Mon Sep 17 00:00:00 2001 From: Pedram Hadjian Date: Tue, 20 Jun 2023 13:12:04 +0200 Subject: [PATCH 04/10] vision.org: embedded fonts in diagram --- media/wot-workflow.drawio.svg | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/media/wot-workflow.drawio.svg b/media/wot-workflow.drawio.svg index a0ad1fe..6ee1403 100644 --- a/media/wot-workflow.drawio.svg +++ b/media/wot-workflow.drawio.svg @@ -1,4 +1,4 @@ -
Author/Generate TMs
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Write Application CodeText is not SVG - cannot display \ No newline at end of file From 2a8712bfc22811ab12b5aa43b611f900b14330e3 Mon Sep 17 00:00:00 2001 From: Pedram Hadjian Date: Tue, 25 Jul 2023 10:15:12 +0200 Subject: [PATCH 05/10] Added ideas for components --- media/wot-workflow.drawio.svg | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/media/wot-workflow.drawio.svg b/media/wot-workflow.drawio.svg index 6ee1403..ed4b873 100644 --- a/media/wot-workflow.drawio.svg +++ b/media/wot-workflow.drawio.svg @@ -1,4 +1,4 @@ -
Author/Generate TMs
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JSON SchemaText is not SVG - cannot display \ No newline at end of file From 47fbdf99c0cb68db153c7ccdeef6ef26ccbda52d Mon Sep 17 00:00:00 2001 From: Pedram Hadjian Date: Tue, 25 Jul 2023 10:19:15 +0200 Subject: [PATCH 06/10] Added ideas for components --- media/wot-components.drawio.svg | 4 ++++ 1 file changed, 4 insertions(+) create mode 100644 media/wot-components.drawio.svg diff --git a/media/wot-components.drawio.svg b/media/wot-components.drawio.svg new file mode 100644 index 0000000..81e26d2 --- /dev/null +++ b/media/wot-components.drawio.svg @@ -0,0 +1,4 @@ + + + +
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Language Libs...Text is not SVG - cannot display \ No newline at end of file From d99f0070da738c435b15013d6cf9ddffac86cd29 Mon Sep 17 00:00:00 2001 From: Pedram Hadjian Date: Tue, 25 Jul 2023 10:21:03 +0200 Subject: [PATCH 07/10] Embedded Fonts --- media/wot-components.drawio.svg | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/media/wot-components.drawio.svg b/media/wot-components.drawio.svg index 81e26d2..6da7ab0 100644 --- a/media/wot-components.drawio.svg +++ b/media/wot-components.drawio.svg @@ -1,4 +1,4 @@ -
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Language Libs...Text is not SVG - cannot display \ No newline at end of file From ef25efd1409794191ce1153383f4a42f74bbe9ef Mon Sep 17 00:00:00 2001 From: Pedram Hadjian Date: Tue, 25 Jul 2023 10:21:57 +0200 Subject: [PATCH 08/10] Embedded Fonts --- media/wot-workflow.drawio.svg | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/media/wot-workflow.drawio.svg b/media/wot-workflow.drawio.svg index ed4b873..f5599e0 100644 --- a/media/wot-workflow.drawio.svg +++ b/media/wot-workflow.drawio.svg @@ -1,4 +1,4 @@ -
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JSON SchemaText is not SVG - cannot display \ No newline at end of file From 69916db0663048061ddee03927445196f70ada17 Mon Sep 17 00:00:00 2001 From: Pedram Hadjian Date: Tue, 25 Jul 2023 13:27:51 +0200 Subject: [PATCH 09/10] Separated Design and Run Time --- media/wot-workflow.drawio.svg | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/media/wot-workflow.drawio.svg b/media/wot-workflow.drawio.svg index f5599e0..2b14ed4 100644 --- a/media/wot-workflow.drawio.svg +++ b/media/wot-workflow.drawio.svg @@ -1,4 +1,4 @@ -
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Run TimeText is not SVG - cannot display \ No newline at end of file From b7015323f9f68f2196f9cff54e1ce938a312c796 Mon Sep 17 00:00:00 2001 From: Pedram Hadjian Date: Tue, 25 Jul 2023 13:29:33 +0200 Subject: [PATCH 10/10] Embedded Fonts --- media/wot-workflow.drawio.svg | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/media/wot-workflow.drawio.svg b/media/wot-workflow.drawio.svg index 2b14ed4..152985f 100644 --- a/media/wot-workflow.drawio.svg +++ b/media/wot-workflow.drawio.svg @@ -1,4 +1,4 @@ -
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Validate
Validate
Fetch TMs and generate TDs from catalog
Fetch TMs and generat...
Onboard Devices to Connectivity Solution
Onboard Devices to Co...
Model Context (Systems, Topology, Taxonomy ...)
Model Context (System...
Write Application Code
Write Application Code
JSON Schema
JSON Schema
Design Time
Design Time
Run Time
Run TimeText is not SVG - cannot display \ No newline at end of file