X-Git-Url: https://git.martlubbers.net/?a=blobdiff_plain;f=introduction.tex;h=79f6c1d93d9de1a7c2d2d00002aa13c1ddb11f10;hb=a3a00cd9df798eda92291a2f3f6c922bdfdfdac2;hp=70a36b340b365f5cf1a52702f7b5783c65355d43;hpb=9c940edab2b3282dc658a629a24573e92964ae77;p=msc-thesis1617.git diff --git a/introduction.tex b/introduction.tex index 70a36b3..79f6c1d 100644 --- a/introduction.tex +++ b/introduction.tex @@ -1,2 +1,59 @@ -\todo{What am I doing} -\todo{Structure of the thesis} +\section{Introduction} +The \gls{TOP} paradigm and the according \gls{iTasks} implementation offer a +high abstraction level for real life workflow tasks. These workflow tasks can be +described through an \gls{EDSL} and modeled as \glspl{Task} +From the specification the system will then generate a multi-user web service. +This web service is accessed through a browser and used to complete these +\glspl{Task}. Familiar workflow patterns like sequence, parallel and +conditional tasks can be modelled using combinators. + +\gls{iTasks} has been shown to be useful in many fields of operation such as +incident management~\cite{lijnse_top_2013}. Interfaces are automatically +generated for the types of data which makes rapid development possible. +\Glspl{Task} in the \gls{iTasks} system are modelled after real life workflow +tasks but the modelling is applied on a very high level. Therefore it is +difficult to connect \gls{iTasks} tasks to the real world tasks and let them +interact. A lot of the actual tasks can be \emph{performed} by small \gls{IoT} +devices. Nevertheless, adding such devices to the current system is difficult +to say the least as it was not designed to cope with these devices. + +In the current system such adapters, in principle, can be written as +\glspl{SDS}\footnote{Similar as to resources such as time are available in +the current \gls{iTasks} implementation} but this requires a very specific +adapter to be written for every device and functionality. However, this forces +a fixed logic in the device that is set at compile time. A lot of the small +\gls{IoT} devices have limited processing power but can still contain decision +making. Oortgiese et al.\ lifted \gls{iTasks} from a single server model to a +distributed server architecture that is also runnable on smaller devices like +\acrshort{ARM} devices\cite{oortgiese_distributed_2017}. However, this is +limited to fairly high performance devices that are equipped with high speed +communication channels. Devices in \gls{IoT} often only have \gls{LTN} +communication with low bandwidth and a very limited amount of processing power +and are therefore not suitable to run an entire \gls{iTasks} core. + +\glspl{mTask} will bridge this gap by introducing a new communication protocol, +device application and \glspl{Task} synchronizing the formers. +The system can run on devices as small as Arduino microcontrollers and +operates via the same paradigms and patterns as regular \glspl{Task}. +\glspl{mTask} can run small imperative programs written in a \gls{EDSL} and +have access to \glspl{SDS}. In this way \glspl{Task} can be sent to the device +at runtime and information can be exchanged. + +\section{Document structure} +The structure of the thesis is as follows. +Chapter~\ref{chp:introduction} contains the problem statement, motivation, +literature embedding and the structure of the document. +Chapter~\ref{chp:methods} describes the foundations on which the implementation +is built. +Chapter~\ref{chp:results} shows the new techniques deviced and an example +application accompanied with implementation. +Chapter~\ref{chp:conclusion} concludes by answering the research questions +and discusses future research. +Appendix~\ref{app:communication-protocol} shows the concrete protocol used for +communicating between the server and client. +Appendix~\ref{app:device-interface} shows the concrete interface for the +devices. + +\section{Relevant research} +\todo{Hier alle citaten en achtergrond doen} +Ivory, firmata, dsl spul, etc.