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+\todo[inline]{
+eigenlijk zouden de eerste zinnen van de alinea's in je samenvatting zouden de samenvatting van je samenvatting moeten zijn.
+}
+
The number of computers around us is growing exponentially, compounding the complexity of the systems in which they operate.
Many of these computers are \emph{edge devices} operating in \gls{IOT} systems.
Within these orchestrations of computers, they interact with the environment using sensors and actuators.
Edge devices often use low-cost microcontrollers designed for embedded applications.
They have little memory, unhurried processors, and are slow in communication but are also small and energy efficient.
-Programming \gls{IOT} systems is complex since they are dynamic, interactive, distributed, collaborative, multi-tiered, and multitasking in nature.
+Programming \gls{IOT} systems is complex since they are dynamic, interactive, distributed, collaborative, multi-tiered, and multitasking in nature.\todo[inline]{Dit eerste zin maken?}
The complexity is increased further by semantic friction that arises through different hardware and software characteristics between tiers.
A solution is found in \gls{TOP}.
+\todo[inline]{Dit is nog niet erg specifiek voor dit werk. De eerste zin is prima. Verder zijn er volgens mij twee dingen van belang: high level focus op de taken die gedaan moeten woredn en alle code uit een source genereren (tierless).}
%A solution is found in the declarative programming paradigm \gls{TOP}.%, a declarative programming paradigm.
In \gls{TOP}, the main building blocks are tasks, an abstract representation of work.
During execution, the current value of the task is observable, and other tasks can act upon it.
However, it is not straightforward to run \gls{TOP} systems on resource-constrained edge devices.
This dissertation demonstrates how to orchestrate complete \gls{IOT} systems using \gls{TOP}.
+\todo[inline]{Eerste zin moet al het woord DSL bevatten}
First, I present advanced \gls{DSL} embedding techniques.
Then \gls{MTASK} is shown, a \gls{TOP} \gls{DSL} for \gls{IOT} edge devices, embedded in \gls{ITASK}.
Tasks are constructed and compiled at run time.
This allows tasks to be tailor-made for the current work requirements.
The compiled task is sent to the device for interpretation.
For a device to be used in an \gls{MTASK} system, it is programmed once with a lightweight domain-specific \gls{OS}.
+\todo[inline]{Waar, maar erg op de tecniek. Wat je er aan hebt lijkt me belangrijker.}
This \gls{OS} executes tasks in an energy-efficient way and automates all communications and data sharing.
-All aspects of the \gls{MTASK} system are shown: example applications, language design, implementation details, integration with \gls{ITASK}, and green computing facilities.
+All aspects of the \gls{MTASK} system are shown: example applications, language design, implementation details, integration with \gls{ITASK}, and green computing facilities such as automatic sleeping.
When using \gls{MTASK} in conjunction with \gls{ITASK}, entire \gls{IOT} systems are programmed tierlessly from a single source, language, paradigm, high abstraction level, and type system.
Many problems such as semantic friction; maintainability and robustness issues; and interoperation safety are mitigated when using tierless programming.
+\todo[inline]{episode III mist eigenlijk nog.\ vergelijking met de traditionele IoT implementatie heeft laten zien dat dit inderdaad veel korter en veiliger is.}
%This is a summary of 350--400 words.
\end{document}
repositories / phd-thesis.git / blobdiff