Data flow diagram dfd - Study guides, Class notes & Summaries

Systems Analyst -Identifies the user requirements -Undertakes fact finding -Defines the system specification Project Manager -To oversee the project -To allocate the budget -Allocates resources- personnel, hardware, software, budget -Identifies risks -Reports back to the client Programmer -Writes the code from the module specification -Tests the code using a test plan -Debugs the code -Documents the code Purpose of analysis -Identify the requirements of the sy...

Black hole No process can have only inputs. If an object has only inputs, then it must be a sink If an object has only outputs it must be a source If an object has only inputs it must be a sink Context Diagram The least detailed level of data flow diagramming The diagram shows only the major information flows between the system and the external parties that interact with the system Outside sources/systems/agents You can tell something or someone is an outside source because you do not know d...

MIS 3320 Baylor Sullivan Final Review Exam 2024/2025 The term usability encompasses TWO related concepts. What are they? Ease of use and ease of learn When implementing the 'minimize user effort' factor, most interface designers follow the ______________ Three-click rule Typically, the first step in the user interface design process is Understand the user Map the following principles for user interface design with the correct example for each principle. Layout Content awa...

BCIS 4610 Question and answers verified to pass 2024 BCIS 4610, Chapter 7 Data Flow Diagram (DFD) - correct answer A picture of the movement of data between external entities and the processes and data stores withing a system. Data store - correct answer Data at rest, which may take the form of many different physical representations Process - correct answer The work or actions performed on data so that they are transformed, stored or distributed. Source/Sink - correct answe...

Accounting Information System (AIS) - the information providing vehicle (intelligence) of the accounting language Attributes - characteristics of interest, which each entity has, that are stored Audit Trail - a traceable path of a transaction through a data processing system from point of irigin to final output, or backwards from final output to point of origin Batch Processing - updating records periodically, cheaper and more efficient, but delayed Block Code - blocks of number are reserv...

DFD completeness - ANSWER refers to the extent to which all necessary components of a data-flow diagram have been included and fully described DFD completeness - ANSWER not complete when data flows that do not lead anywhere, or data stores, processes or external entities that are not connected to anything else DFD consistency - ANSWER the extent to which information contained on one level of a set is nested data-flow diagram is also included on other levels primative DFD - ANSWER the lo...

Modern Systems Analysis and Design Chapter 7-9 Graded A Data Flow Diagram (DFD) Concepts: 1. Data Flow Diagram (DFD): A visual representation showing the movement of data between external entities, processes, and data stores within a system. 2. Data Store: Data at rest, which can be represented in various physical formats. 3. Process: Actions performed on data to transform, store, or distribute it. 4. Source/Sink: The origin and/or destination of data, often referred to as external e...

UNT BCIS 4610 Question and answers rated A+ 2024 UNT BCIS 4610 - Ch.7 Data flow diagram (DFD) - correct answer a picture of the movement of data between external entities and the processes and data stores within a system Data store - correct answer data at rest, which may take the form of many different physical ditributed Process - correct answer The work or actions performed on data so that they are transformed, stored, or distributed Source/sink - correct answer the origi...

a graphical way of representing how a business system should operate. It illustrates the processes or activities that are performed and how data move among them. Process model is a DFD. Contains two data components: the data flow (composed of data elements) & the data store. The purposes of these are to illustrate process model is a technique that diagrams the business processes and the data that pass among them. The DFD's focus is mostly on the processes or activities that are perform...

Business Analysis Exam 2 Questions and Answers Rules of process modeling - Answer-1. left to right, top to bottom 2. show all processes 3. data flows must start or end in a process 4. beware of black holes - every process and data store must produce data 5. no "magic processes" - must enter all data needed to get data out Rule of thumb (DFDs) - Answer-imagine that you are producing a diagram that must pass this test: you will finish the DFD, then hand it to someone who will then procee...