#context diagram

[chintantakwani-blog]

Level 0 Data Flow Diagrams- Context diagram

Level 0 Data Flow Diagrams- Context diagram

They are the basic higher level DFDs. They do not include the flow of information in the system in detail. As we saw the analogy, when we are helicopter and we see our company as a whole, we can only see the external entities along with company as a whole and not the internal structure or processes in detail, nor any data store.

Hence, the Level 0 DFD has  only one process and external entities…

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[chintantakwani-blog]

Data Flow Diagram (DFD)- Introduction

Data Flow Diagram (DFD)- Introduction

DFD or Data Flow Diagrams have remained basic to the software development methodology as it gives the understanding about how the information flows through the system or software. There are basically important because everyone in the hierarchy uses it from developer to CEO. DFD are combination of the flow of information and functions of the system. They are important part of UML diagrams.

There…

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[eventhelix]

LDAP sequence diagram with Kerberos authentication

The LDAP sequence diagram describes authenticated LDAP directory lookup. The steps covered are:

TCP connection establishment with the LDAP server

Initial interaction to list the available services.

Authenticate with the Kerberos server and obtain a ticket to proceed with the authentication with the LDAP server.

Armed with the Kerberos ticket, the LDAP client uses bind to authenticate and initiate…

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[medicalcentreonline]

After I have interviewed with my client, who remind me the importance of market team in the stage of increasing and attracting users, and my programmer has suggested me with the necessity of adding the admin role into the site. Another group of people, visitors, who have not been register as the patient is also the target audiences. They will interact with the features of browse health info, posts questions and find doc as well. Consequently, I've add these three group into the sketch of my second version context diagram and made level 0 DFD from these three perspective.