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ifndef::imagesdir[:imagesdir: ../images] | ||
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[[section-system-scope-and-context]] | ||
== System Scope and Context | ||
== Ámbito del sistema y contexto | ||
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[role="arc42help"] | ||
**** | ||
.Contents | ||
System scope and context - as the name suggests - delimits your system (i.e. your scope) from all its communication partners | ||
(neighboring systems and users, i.e. the context of your system). It thereby specifies the external interfaces. | ||
=== Contexto de negocio | ||
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If necessary, differentiate the business context (domain specific inputs and outputs) from the technical context (channels, protocols, hardware). | ||
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.Motivation | ||
The domain interfaces and technical interfaces to communication partners are among your system's most critical aspects. Make sure that you completely understand them. | ||
image::diag_contexto_business.png["Diagrama de contexto de negocio"] | ||
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.Form | ||
Various options: | ||
[cols="1,1"] | ||
|=== | ||
|Actor |Descripción | ||
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* Context diagrams | ||
* Lists of communication partners and their interfaces. | ||
|Usuario | ||
|Los usuarios interactuan con el sistema viendo y respondiendo preguntas | ||
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|Wikidata | ||
|Las preguntas y sus respuestas se obtienen de wikidata | ||
|=== | ||
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.Further Information | ||
=== Contexto técnico | ||
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See https://docs.arc42.org/section-3/[Context and Scope] in the arc42 documentation. | ||
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**** | ||
image::diag_contexto_tecnico.png["Diagrama de contexto técnico"] | ||
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[cols="1,1,1"] | ||
|=== | ||
|Interfaz |Descripción |I/O | ||
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=== Business Context | ||
|Usuario | ||
|Los usuarios interactuan con el WebApp del sistema viendo y respondiendo preguntas | ||
|Salida: acciones del usuario | ||
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[role="arc42help"] | ||
**** | ||
.Contents | ||
Specification of *all* communication partners (users, IT-systems, ...) with explanations of domain specific inputs and outputs or interfaces. | ||
Optionally you can add domain specific formats or communication protocols. | ||
|Azure | ||
|La WebApp del sistema se despliega en Azure y muestra a los usuarios información obtenida de la API de Wikidata | ||
|Entrada: acciones del usuario y datos de preguntas + | ||
Salida: preguntas y respuestas generadas automáticamente | ||
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.Motivation | ||
All stakeholders should understand which data are exchanged with the environment of the system. | ||
.Form | ||
All kinds of diagrams that show the system as a black box and specify the domain interfaces to communication partners. | ||
Alternatively (or additionally) you can use a table. | ||
The title of the table is the name of your system, the three columns contain the name of the communication partner, the inputs, and the outputs. | ||
**** | ||
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**<Diagram or Table>** | ||
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**<optionally: Explanation of external domain interfaces>** | ||
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=== Technical Context | ||
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[role="arc42help"] | ||
**** | ||
.Contents | ||
Technical interfaces (channels and transmission media) linking your system to its environment. In addition a mapping of domain specific input/output to the channels, i.e. an explanation which I/O uses which channel. | ||
.Motivation | ||
Many stakeholders make architectural decision based on the technical interfaces between the system and its context. Especially infrastructure or hardware designers decide these technical interfaces. | ||
.Form | ||
E.g. UML deployment diagram describing channels to neighboring systems, | ||
together with a mapping table showing the relationships between channels and input/output. | ||
**** | ||
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**<Diagram or Table>** | ||
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**<optionally: Explanation of technical interfaces>** | ||
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**<Mapping Input/Output to Channels>** | ||
|Wikidata | ||
|El sistema llama a la API REST de wikidata para obtener los datos de las preguntas y respuestas que se generarán automáticamente | ||
|Salida: datos de preguntas | ||
|=== |
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ifndef::imagesdir[:imagesdir: ../images] | ||
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[[section-quality-scenarios]] | ||
== Quality Requirements | ||
== Requisitos de calidad | ||
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[role="arc42help"] | ||
**** | ||
=== Árbol de calidad | ||
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.Content | ||
This section contains all quality requirements as quality tree with scenarios. The most important ones have already been described in section 1.2. (quality goals) | ||
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Here you can also capture quality requirements with lesser priority, | ||
which will not create high risks when they are not fully achieved. | ||
[cols="1,1,1,1"] | ||
|=== | ||
|Categoría |Calidad |Descripción |Escenario | ||
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.Motivation | ||
Since quality requirements will have a lot of influence on architectural | ||
decisions you should know for every stakeholder what is really important to them, | ||
concrete and measurable. | ||
|Adecuación funcional | ||
|Corrección funcional | ||
|El sistema deberá marcar que las respuestas correctas a las preguntas se corresponden con wikidata | ||
|SC1 | ||
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|Eficiencia de desempeño | ||
|Comportamiento temporal | ||
|El sistema deberá responder a las acciones de los usuarios en menos de 5 segundos bajo condiciones normales | ||
|SC2 | ||
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.Further Information | ||
| | ||
|Utilización de recursos | ||
|El sistema deberá usar recursos inferiores a los establecidos por Azure | ||
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See https://docs.arc42.org/section-10/[Quality Requirements] in the arc42 documentation. | ||
|Seguridad | ||
|Integridad | ||
|El sistema deberá proteger los datos del usuario contra accesos y modificaciones no autorizados | ||
| | ||
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**** | ||
|Usabilidad | ||
|Reconocibilidad de la adecuación | ||
|El sistema deberá ser fácil de usar para un usuario que conozca "Saber y ganar" | ||
|SC3 | ||
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=== Quality Tree | ||
| | ||
|Estética de la interfaz de usuario | ||
|El sistema deberá tener una interfaz que facilite al usuario jugar correctamente | ||
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[role="arc42help"] | ||
**** | ||
.Content | ||
The quality tree (as defined in ATAM – Architecture Tradeoff Analysis Method) with quality/evaluation scenarios as leafs. | ||
|Mantenibilidad | ||
|Capacidad para ser modificado | ||
|La capa de interfaz deberá estar separada de la lógica de negocio | ||
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.Motivation | ||
The tree structure with priorities provides an overview for a sometimes large number of quality requirements. | ||
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|Capacidad para ser probado | ||
|Se deberán poder crear pruebas unitarias | ||
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.Form | ||
The quality tree is a high-level overview of the quality goals and requirements: | ||
|Portabilidad | ||
|Adaptabilidad | ||
|El sistema deberá porder usarse en las últimas versiones de Chrome y Firefox | ||
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* tree-like refinement of the term "quality". Use "quality" or "usefulness" as a root | ||
* a mind map with quality categories as main branches | ||
|Fiabilidad | ||
|Disponibilidad | ||
|El sistema deberá registrar un fallo cuando no sea posible obtener datos de la API de wikidata correctamente | ||
|SC4 | ||
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In any case the tree should include links to the scenarios of the following section. | ||
|=== | ||
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**** | ||
=== Escenarios de calidad | ||
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=== Quality Scenarios | ||
[cols="1,1"] | ||
|=== | ||
|ID |Escenario | ||
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[role="arc42help"] | ||
**** | ||
.Contents | ||
Concretization of (sometimes vague or implicit) quality requirements using (quality) scenarios. | ||
|SC1 | ||
|Un usuario puede comprobar que la respuesta correcta a su pregunta coincide con Wikidata | ||
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These scenarios describe what should happen when a stimulus arrives at the system. | ||
|SC2 | ||
|Al responder una pregunta, el sistema muestra si es correcta o falsa en menos de 5 segundos | ||
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For architects, two kinds of scenarios are important: | ||
|SC3 | ||
|Un nuevo usuario que conozca "Saber y ganar" puede aprender a jugar en menos de 5 minutos | ||
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* Usage scenarios (also called application scenarios or use case scenarios) describe the system’s runtime reaction to a certain stimulus. This also includes scenarios that describe the system’s efficiency or performance. Example: The system reacts to a user’s request within one second. | ||
* Change scenarios describe a modification of the system or of its immediate environment. Example: Additional functionality is implemented or requirements for a quality attribute change. | ||
|SC4 | ||
|Si no se puedan obtener datos de Wikidata, se le mostrará un mensaje de error al usuario al generar la pregunta | ||
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.Motivation | ||
Scenarios make quality requirements concrete and allow to | ||
more easily measure or decide whether they are fulfilled. | ||
|=== | ||
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Especially when you want to assess your architecture using methods like | ||
ATAM you need to describe your quality goals (from section 1.2) | ||
more precisely down to a level of scenarios that can be discussed and evaluated. | ||
.Form | ||
Tabular or free form text. | ||
**** |