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QUESTION
I have this simple diagram, it doesn't follow any type of UML diagram. Its goal is to show all the parts of our solution, and how they're related.
In the image: the web scraper scraps the data in some websites and stores it in the database. The web application receives filter options and implement it using a Rest API that returns some data to be exported in xlsx and csv. The API uses the database populated by the web scraper.
I need to make a new diagram with the highlighted process above, using UML. I had a suggestion to use a package diagram, so I made this version:
Edit: In the image: Fonts -> Web Scraper -> Database -> Api(Filters(type of filters)) -> Front end (results, search options) -> User
Is it the right way of making a package diagram? I couldn't find a similar example or specific rules for this case.
...ANSWER
Answered 2021-May-03 at 11:46Packages are namespaces and aim to structure a model. A package diagram therefore does in not represent a process with data flows (dynamic behavior). The relations between packages are namespace relations such as «imports» and «merges» and dependencies.
Your package diagram certainly shows some valid decomposition of your design with nested packages. But you would normally not represent users (usario), or flows of data (dados) coming from a database (Banco de dados).
What are the better alternatives in UML?Your initial diagram shows in one picture, using some flowcharting symbols, very different things:
- conceptual classes of objects such as fonts, filters, or files
- components such as web scraper, the database, front-end, back-end,
- flows of objects like the webscraper that feeds the database that is queried by the backend, or interactions between freont-end suppliying filters and back-end that provides data.
If you want to represent this in UML you need to clarify the focus, because UML requires some precision since it separates structure and behavior. The answer will depend on what you want to show:
- the flow of processes and data? Use an activity diagram (behavior). This is perfect to show the flow from the source to the end-result, but not so easily the parts of the system that are involved.
- the relationship between components ? Use a component diagram (structure). This is perfect to identify the components, how these are nested, and how their interfaces are connected. But it does not show the order in which all this happens.
- the interaction between components ? Use communication or sequence diagrams (behavior). Here you see what the components exchange in what order, but not so well how the components are structured.
Spontaneously, I'd go for components, since I have the impression that this dominates your original diagram. But in the end, you may use different diagrams for showing the different aspects.
Other alternativesIf you're looking for a single diagram to combine the different thoughts of your original diagram, alternatively to UML, you could consider C4 model diagrams.
It's less precise than UML, but very convenient for communicating the big picture of a system architecture. The C4 context diagram and the C4 container diagram in paticula allow to show the system's main components, and some high-level relations (including data flows) between them.
The good news is that C4 relies on UML for the the more detailed design of the identified components.
QUESTION
I am looking for a little help with array. So I have array that looks like that:
...ANSWER
Answered 2021-Mar-18 at 17:45You would have to look at the new array and compare it with a previous version. Here is a little demo of how you could set it up:
QUESTION
I would like to read the documentation for the Firestore security rules request.auth input object model (all its properties and types and their purpose) in order to be able to use them meaningfully in my project's firebase security rules.
Unfortunately, all I could find are scraps of information in various unrelated contexts.
Do you know of centralized documentation for this vital firestore component?
...ANSWER
Answered 2021-Feb-24 at 19:37The most complete documentation for the request.auth property in Firestore security rules is available here: https://firebase.google.com/docs/reference/rules/rules.firestore.Request#auth
QUESTION
I'm trying to make a discord.py bot with a command that takes a tagged user's avatar, puts a transparent image on top, and then sends the edited photo back. I've been mashing together scraps of code from tutorials and other StackOverflow questions, so I'm not completely confident in what my code is doing. Currently it is not working because I keep getting an error in the command line. Below is the code for the bot command:
...ANSWER
Answered 2021-Feb-08 at 06:12Thanks to Twitter user __hetz, I can answer my own StackOverflow post.
The dimensions of both images had to match. That was it. Also, I found an easier way to convert an avatar asset into a .PNG image in the size I needed:
await ctx.author.avatar_url_as(format="png",size=128).save(fp="avatar.png")
I was also using the wrong variable name in the alpha_composite line, so it should instead be:
smack = Image.alpha_composite(providedimage, pie)
And, last but not least, the function I was using to send messages was outdated. It should instead be:
await ctx.message.channel.send(file=discord.File("smack.png"))
Hopefully this can help some more dumb teenagers trying to make their own Discord bots.
QUESTION
Can someone help me modify this script so that it also scraps the URL associated with each job. The purpose would be when browsing the .csv file in a spreadsheet I can click on the link if I would like to know more information about the job. Thank you in advance.
...ANSWER
Answered 2021-Feb-01 at 02:02You can use one of this
QUESTION
I've got this code, it scraps this data from imdb: top 250 movies, fields name, year and rating.. and I'm trying to figure out how to extract only the movies in which Brad Pitt is, I've searched a lot of similar questions, but none really helped, I appreciate any contribution coming from you!
...ANSWER
Answered 2020-Dec-27 at 12:47Post processing your idmb list you can do the following, to get all the results with brad pitt in star_cast:
QUESTION
I'm new to learning CSS/HTML and i've been working a bit on trying to recreate the windows 98 vibe. However, one thing I've had a lot of trouble with specifically is trying to recreate the "start" button with a simple toggle script.
You can see an example of the current script i'm using here; https://thealonic.tumblr.com/ most of the work is my own work with some scraps of css from the old theme I was using along with win98.css
I've looked around a bit and tried around 4-5 solutions with no luck over the course of a couple hours, but none seemed to be helping me making any progress so I just tried to use more bare bones solutions by just using if statements.
...ANSWER
Answered 2020-Dec-08 at 19:55The problem in your code is that the condition inside the if statement doesn't change every time you click the button. You need some kind of toggle that changes at every click. You can try something like this:
QUESTION
I have tried to customize react-navigation drawer(v 5.x) because I want to add company information in the drawer header. But it isn't going good because adding custom drawer component to the drawer scraps any list of navigation items already available on the drawer( the names of all screens).
Below is my code:
ANSWER
Answered 2020-Nov-25 at 09:18You have to add the DrawerItemList to the custom drawer component
QUESTION
I sat up a test Scrapy scraper which looks like this:
...ANSWER
Answered 2020-Oct-23 at 02:56Your spider is actually going through all the pages, the problem is that in parse_page the selector for ads only works in the earlier pages, in later pages the class name changes. The class name seems to be dynamically generated, so you need an XPath that won't select by class.
This XPath '//div/header/parent::div' would return the same div element that '//*[@class="featured css-ineky e1jqslr40"]' so replacing this line should allow you to select all ads from all pages:
QUESTION
I have just started working on Angular (Angular CLI: 9.1.12, Node: 12.16.2). I am studying basic of angular.
I have a Django REST API running locally at -
...ANSWER
Answered 2020-Oct-24 at 21:02It's a security feature.
You either use Angular Proxy, or add CORS headers to API.
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