I am new in doing an activity and currently, I am trying to draw one based on given description.
I enter into doubt on a particular section as I am unsure if it should be 'split'.
Under the "Employee", the given description is as follows:
Employee enter in details about physical damage and cleanliness on the
machine. For the cleanliness, there must be a statement to indicate
that the problem is no longer an issue.
As such, I use a foreach as a means to describe that there should be 2 checks - physical and cleanliness (see diagram in the link), before it moves on to the next activity under the System - for the system to record the checks.
Thus, am I on the right track? Thank you in advance for any replies.
Your example is no valid UML. In order to make it proper you need to enclose the fork/join in a expansion region like so:
A fork/join does not accept any sematic labels. They just split the control flow into several parallel ones which join at the end.
However, this still seems odd since you would probably have some control for the different inspections being entered. So I'd guess there's a decision which loops through multiple inspection entries. Personally I use regions only for handling interrupts. ADs are nice to a certain level. But sometimes a tabular text (like suggested by Cockburn) is just easier to write and read. Graphical programming is not the ultimate answer (unlike 42).
First, the 'NO' branch of the decision node must lead somewhere (at the end?).
After, It differs if you want to show the process for ONE or MULTIPLE inspections. But the most logical way is to represent the diagram for an inspection, because you wrote inspection without S ! If you want represent more than one inspection, you can use decision and merge node to represent loop that stop when there is no more inspection.
Related
I want to measure whether the impact of a company's headquarter country on my independent variable (goodwill paid) is stronger during recessions. After some researching, I found out that the differences-in-differences analysis could solve my problem. However, in the internet they always show a diagram (see example under: https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.publichealth.columbia.edu%2Fresearch%2Fpopulation-health-methods%2Fdifference-difference-estimation&psig=AOvVaw1yMN6knTtOEahZ9vstJpnV&ust=1676208292554000&source=images&cd=vfe&ved=0CAwQjRxqFwoTCLjbrNDIjf0CFQAAAAAdAAAAABAE ) with the "treatment" and "parallel trends". So two lines that increase or decrease in the same way until the treatment and then one line increase/decreases more than the other.
My question now is what is my treatment and what is my control variable in my example? The treatment cannot be recessions because otherwise I just have the treatment group after the treatment and the control group before the recessions. If you think another statistical test may be better, I would be happy to consider that.
Furthermore, I just want to make sure that I created my model correctly: Goodwil Paid=B0+B1ressions+B2Country+B3ressionsCountry
Would that tell me whether the impact of the country is stronger during recessions?
Thanks a lot for your help.
I am currently working on a project about life cycle models for vehicles on Brightway. The models I am using are inspired from models on the software Simapro. All the life cycle processes are created fine except for the end of life scenarios. On Simapro the end of life scenarios are described with percentages of recycled mass for each type of product (plastics, aluminium, glass, etc) but I can't find how to translate this into Brightway. Do you have ideas on how to deal with these end of life scenarios on Brightway ? Thank you for your answer.
Example of the definition of an end of life scenario on Simapro
There are many different ways to model End-of-Life, depending on what kind of abstraction you choose to map to the matrix math at the heart of Brightway. There is always some impedence between our intuitive understanding of physical systems, and the computational models we work with. Brightway doesn't have any built-in functionality to calculate fractions of material inputs, but you can do this manually by adding an appropriate EoL activity for each input to your vehicle. This can be in the vehicle activity itself, or as a separate activity. You could also write functions that would add these activities automatically, though my guess is that manual addition makes more sense, as you can check the reasonableness of the linked EoL activities more easily.
One thing to be aware of is that, depending on the background database you are using, the sign of the EoL activity might not be what you expect. Again, what we think of is not necessarily what fits into the model. For example, aluminium going to a recycling center is a physical output of an activity, and all outputs have positive signs (inputs have negative signs in the matrix, but Brightway sets this sign by the type of the exchange). However, ecoinvent models EoL treatment activities as negative inputs (which is identical to positive outputs, the negatives cancel). I would build a simple system to make sure you are getting results you expect before working on more complex systems.
I am new to KofaxTotalAgility solution, but i am well aware of OCR, OMR and recognition mechanism.
I have two forms in one folder, A and B.
both of them are identical, but due to manual scan there are slight axes change, say 20 pixel right shift, so Layout is slightly differ.
Layout of Image A and Image B are different, position of a form in a page are not fix.
I know, other solution like "abbyy fine reader", provide flexilayout where we can handle this by finding the text and setting up right left top down to automatically identify zones.
As i have started learning KofaxTotalAgility, i am unaware of all option provided by "kofax Transformation Designer".
My question is which Locator should i use, i am currently using/working-on advance zone locator and for one document(Image A) which i set as a reference, extraction is proper. But for other,(Image B) due to layout mismatch text/box field are not getting extracted.
Can anyone point out the right direction from where i can get this case handled properly.
I know, i am asking direct option/solution, any help is highly appreciable.
In general, Kofax Transformations has two groups of locators:
Deterministic. You tell the locator precisely what to do, and how to do it (similar to an imperative approach when programming)
Probabilistic. You just tell your locator what to extract, and it works out the rest (based on AI).
Here's a (non-exhaustive) diagram I created the other day:
When working with forms, you might be tempted to rely on forms-specific locators such as the Advanced Zone Locator. While this locator can account for fields "moving around", for example due to images being jolted, zoomed, or distorted, there are certain limitations. Other locators don't have these limitations - the format locator for example allows you to define a certain pattern (a Regular Expression) that should be matched along with a keyword that has to be found somewhere around that pattern.
For your example, you could create a regex like M|F|X, and then define "Gender" as the keyword that needs to be present on the left.
However, any locator that's ruled by determinism follows Murphy's law - at some point that keyword might change. There could be different languages. And maybe additional letters for certain genders might be added; ultimately breaking your extraction logic.
Enter AI - while Murphy's law still applies when using Group Locators, the difference here is that users can train the system to pick up the new data. Said locator will automatically work out the best way to extract that piece of data. If you used a format locator, the customer would need to get back to you to add additional expressions, or have the keywords changed.
In your particular case, I'd try to use a Trainable Group Locator first. If you already know what you're looking for - for example SSNs that you have somewhere in a database, go for the Database Locator. Use Format Locators as a last resort, as tempting as they may be. Advanced Zone Locators are useful when you deal with forms, but I find myself using them almost exclusively for handprint or checkbox recognition.
It is my first time doing a Petri net, and I want to model a washing machine. I have started and it looks like this so far:
Do you have any corrections or help? I obviously know its not correct, but I am a beginner and not aware of the mistakes you guys might see. Thanks in advance.
First comments on your net's way of working:
there is no arrow back to the off state. So once you switch on your washing machine, won't you never be able to switch it off again ?
drain and dry both conduct back to idle. But when idle has a token, it will either go to delicate or to T1. The conditions ("program" chosen by the operator) don't vanish, so they would be triggered again and again.
Considering the last point, I'd suggest to have a different idle for the end of the program to avoid this cycling. If you have to pass several times through the same state but take different actions depending on the progress, you have to work with more tokens.
Some remarks about the net's form:
you don't need to put the 1 on every arc. You could make this more readable by Leaving the 1 out and indicating a number on an arc, only when more than one tokens would be needed.
usually, the transitions are not aligned with the arcs (although nothing forbids is) but rather perpendicular to the flow (here, horizontal)
In principle, "places" (nodes) represent states or resources, and "transitions" (rectangles) represent an event that changes the state (or an action that consumes resources). Your naming convention should better reflect this
Apparently you're missing some condition to stop the process. Now once you start your washing will continue in an endless loop.
I think it would be nice to leave the transition graphics unshaded or unfilled if it is not enabled. Personally I fill it green if it is enabled.
If you want someone to check if you modeled a logic properly in your Petri Net then it would be nice if you include a description of your system logic in prose.
I am using Jena and Java, and am reading a CSV file. For each line of the file there is a subject resource. Two subject resources, on adjacent lines, might have share the same value of a field in the line (e.g: both lines have the same process id). In this case, I need to combine the two subject resources as each one represents a sub-process in production (for example).
My question is: how can I reference those two resources dynamically so that I can combine them? I came to the idea that when I find that they share the same property to store them in an array resource subjects. Is it the right approach?
This question would be a lot easier to answer if you could show some sample data. As it is, I think you're focusing on the wrong bit of the question. If you can decide clearly what it means to have two rows in your CSV with identical process, and then you decide how you're going to encode that meaning in your RDF model, then the question of how to write the code - as an array or whatever - will be much clearer.
For example (and I'm going to make up some data here - as I said, it would be easier if you show an actual example), suppose your CSV contains:
processId,startTime,endTime
123,15:22:00,15:23:00
123,16:22:00,16:25:00
So process 123 has, apparently two start and end time pairs. If you model this naively in RDF, you'll end up with a confusing model:
process:process123
a :Process;
process:start "15:22:00"^^xsd:time;
process:end "15:23:00"^^xsd:time;
process:start "16:22:00"^^xsd:time;
process:end "16:25:00"^^xsd:time;
.
which would suggest that one process had two start times (and two end times) which looks nonsensical. However, it might be that in reality you have a single process with multiple episodes, suggesting one way to model it, or a periodic process which occurs at different times, or, as you suggested, sub-processes of a parent process. Or something else entirely (I'm only guessing, I don't know your domain). Once you are clear what the data means, you can produce a suitable RDF model. For example, an episodic process might be:
process:process123
a :Process;
process:episode [
a process:Episode;
process:start "15:22:00"^^xsd:time;
process:end "15:23:00"^^xsd:time;
];
process:episode [
a process:Episode;
process:start "16:22:00"^^xsd:time;
process:end "16:25:00"^^xsd:time;
]
.
Once the modelling is clear in your mind, I think you can see that the question of how to produce the desire RDF triples from Java code - and whether or not you need an array - is much clearer. Equally importantly, you can think in terms of the JUnit tests you would write to test whether your code is behaving correctly.