The goal of the thesis was to extend the existing visual editor, vpl-for-things, to support the functionality of any application that utilizes it, provided the required structures are supplied. In addition, the thesis aimed to extend the selected application, RIoT, to provide these necessary structures, as it was chosen as an example of such an application. To achieve this goal, the student needed to study the fields of IoT, smart cities, and current approaches to end-user development, primarily in the context of visual programming languages. This allowed the student to analyze the shortcomings of both the vpl-for-things editor and the canonical interpreter pocketix-go and RIoT. Based on his findings, the student proposed extending the canonical interpreter pocketix-go with the functionality already present in the base language of the vpl-for-things editor, fleshing out the abstraction layer in RIoT, and implementing new features, such as notifications and logging, in a new microservice and core responsibilities, respectively. To achieve this goal, the student needed to study both the aforementioned and complex systems, as well as tools such as the Go programming language, Lit.js, React.js, RabbitMQ, the browser notification API, and others. The student then implemented and tested the proposed extensions. This extension lies in improvements to pocketix-go and language construction in vpl-for-things, which enable dynamic injection of required structures. I consider the assignment to be fulfilled in its entirety. I rate the assignment's difficulty as slightly above average. This work builds on and expands upon the findings from my PhD thesis proposal [1].

[1] John, Petr. Optimising processes in IoT. Brno, 2024. PhD thesis proposal. Brno University of Technology, Faculty of Information Technology.

The student maintained regular communication throughout the academic year. Consultations with the thesis advisor took place online approximately once every two weeks. The student also frequently sent messages to report on new developments. The student duly completed the assigned tasks, and the work progressed at a good pace.

-

Evaluation level: obtížnější zadání

The assignment is above standard difficulty, spanning three separate codebases plus a user study. It does build on an existing platform rather than starting from scratch, but the cross-component coordination keeps it demanding.

Typesetting and figures are clean and the English reads well. There are a few leftover issues (e.g. a couple of typos) that a final proofing pass would have caught.

The work extends an existing direction (the RIoT platform and prior theses) rather than breaking new ground, so the contribution is incremental. That said, it delivers a working, reusable abstraction that the author argues can be extended to further services, and with a live deployment it has clear practical value.

Evaluation level: splňuje pouze minimální požadavky

The body text, from introduction to conclusion, sits at the lower end of the acceptable range, around the 40-page minimum once the many figures are counted. The content is relevant and information-rich, so the modest length is not a problem.