X-Git-Url: https://git.martlubbers.net/?a=blobdiff_plain;f=back%2Fsummary.tex;h=3fbb2a5646ae733c0bd6b8aa6366c08803c76b72;hb=adcda9a326216c71bcc240dfc6882f95b183b102;hp=38db72d5de27f343d22c02ec397ae6fa9c6e2041;hpb=0c4686b70dcb071a6537cdb52beb6bf4183334a1;p=phd-thesis.git diff --git a/back/summary.tex b/back/summary.tex index 38db72d..3fbb2a5 100644 --- a/back/summary.tex +++ b/back/summary.tex @@ -1,16 +1,43 @@ \documentclass[../thesis.tex]{subfiles} -\include{subfilepreamble} +\input{subfilepreamble} \begin{document} -\chapter{Summary}% -\label{chp:summary} -\begin{center} +\input{subfileprefixsmall} +\ifSubfilesClassLoaded{\chapter*{Summary}}{\chapter{Summary}}% +\label{chp:summary}% +\glsresetall% +%\begin{center} +%\noindent% +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. +The complexity is increased further by semantic friction that arises through different hardware and software characteristics between tiers. -\noindent% -This is a summary of 350--400 words. +A solution is found in \gls{TOP}. +%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. +Collaboration patterns can be modelled by combining and transforming tasks into compound tasks. +From this declarative description of the work, a ready-for-work computer system is generated that guides all operators in doing the work. +An example of a \gls{TOP} system is \gls{ITASK}, a language which describes interactive web applications. +Programming edge devices benefits from \gls{TOP} as well. +However, it is not straightforward to run \gls{TOP} systems on resource-constrained edge devices. -\end{center} - -\input{subfilepostamble} +This dissertation demonstrates how to orchestrate complete \gls{IOT} systems using \gls{TOP}. +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 must to be programmed once with a lightweight domain-specific \gls{OS}. +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. +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. +%This is a summary of 350--400 words. +%\end{center} \end{document}