EASY-HOW-TO Data Flow Diagram (DFD) Tutorial (Manual)

In this video tutorial, you will learn how to:
1. Create a Data Flow Diagram (DFD) Level 0 from a given context or documentation
2. Derive the Context Diagram from DFD Level 0
3. Identify non-functional primitive processes

DISCLAIMER:
1. The 2013 documentation used in this video is for educational purposes only. This may or may not represent anymore the actual Registration System of the University of the Philippines Open University (UPOU).
2. The DFD tutorial is open for interpretation and suggestions, for this DFD is based on the documentation and my actual experience as I am an alumna of UPOU. If you have comments and suggestions for the improvement of the DFD, feel free to comment below. Thank you very much!

[ilovejeffhardy]

Kakaiba nga talaga pagtuturo sa Pilipinas, ang hirap pag sa abroad, bara bara lang tinuturo. Puro modules pero di maayos magturo. Salamat po talaga! Final year ko na po! ❤️👨🏻‍🎓

[LongWaLK]

What a clear Explanation! Thanks, Ma'am!

[spring]

very helpful explanation, thank you so much!

[stormCROW]

Thanks Ma'am u made me understand the Diagram flow so vivid ♥

[jet]

Thank you for this Ma'am! I'm a student in University of Makati.

[reycortez]

thank you maam, for a very clear explanation

[lesegomokoena]

You need to be my teacher, good stuff

[franzjeffdignos]

Hello ma'am, thank you for this content.

[VũNguyễn-tk]

"Clicked Sign-In Button" is more accurately an action or event rather than data. Instead, you could label the data flow with something like "Login Request" or "Sign-In Request, " as this would represent the actual data the system needs to initiate the login process.





Just my opinion

[kianorlaza]

Hello ask lang po if gagawa ng dfd naka focus lang sya purely sa user tapos pag admin side na hiwalay nang diagram neto? tyia! ^^

[cheesech.]

please get straight to the point next time 👍. very educational

[joshuafactolerin]

Yung tunog ng Pentel pen parang di ko kinakaya 😬 pero oks Naman video mo po.

[airaglennlazo]

Hello po, just wanna ask if ilang users po ang needed pa mag function itong enrollment system po?

[pao]

Ma'am how about po sa Registering Online for Vaccination? Hehe

[nakazzihadijjah]

The following are the details of the process documented through an exams handling information system.

(i)Candidate submits an official registration form for an examinations purpose at a definite or stated date including the examinations centre.

(ii)The exams clerk checks to ensure the exam is actually being held at a specified date and centre. Where there is doubt, the candidate receives back the registration form.

(iii)If it is okay, the exams clerk inputs the candidate’s particulars into the computer system. The system then automatically assigns the next accessible or available registration number to the registered candidate, and the last number allocated or assigned on the CANDIDATE–file-plus one.

(iv)The examinations clerk inputs the mandatory exams date and centre. The system assigns a seat number accordingly to that candidate for example (from the previous seat number and in that centre on a specified date-plus one).

(v)Candidate details (name, centre, number, examination date, address and seat number) are subsequently stored or kept on a CANDIDATE file. The details are printed out and then sent to the destination of the candidate.

Required:

(a)Construct a suitable process model (for example, a Data Flow Diagram, or Entity Relationship Diagram, or a flowchart) for the above business requirement.

(b)Provide the explanatory key to the model for the user to understand the notation.

(c)Pinpoint two questions the systems analyst should ask in order to improve the accuracy of your model. Explain the reason for asking eachof the questions.
please help me out