Questions tagged [systems-analysis]
Studying and analyzing organizations and procedures in order to identify inputs, outputs, and processes in order to create or modify systems and procedures to improve efficiency.
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What empirical evidence is there that the separation between analysis and design leads to better results than mixing them?
What scientific/empirical evidence is there that the mental separation between (business) analysis and (technical) design in software development leads to better results than considering both together?...
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A Case Study Dataflow Diagram
From the book Essentials of Systems Analysis and Design by Joseph S. Valacich, Joey F. George, Jeffrey A. Hoffer, we have a study case, with the following 0 DFD :
This diagram raises the following ...
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Domain Driven Design and Systems Analysts
DDD targets software with complex domains, which is usually the case with enterprise information systems. Traditionally, in the organizations developing this kind of software, there is a "systems ...
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what is the difference between system requirements and software requirements?
For my project, I am required to complete a software requirement and systems requirement for a program I am developing which needs to be fairly detailed. However I am struggling to differentiate ...
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Difference between data modelling and process modelling?
I'm studying systems analysis in my CS class and we've just been taught about Gantt charts, CPA diagrams, and modelling.
I'm a bit confused regarding data modelling and process modelling. From my ...
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What are the modern systems analysis and design methodologies/patterns?
I studied systems analysis and design (SAD) in college/university, which primarily gave a set of methods to design a system, using UML diagrams. Flow charts, entity-relationship diagrams, etc, were ...
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UML: what is the correct order of steps?
I was reading an old text book "Beginning C# Object oriented programming" from 2011. The author in one case employs the "use case" to identify classes and then goes to draw a class ...
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Do data stores appears in Level 1 DFD?
Let’s consider that Context diagram is the diagram that describe the system as a single process and level 0 diagram is the one that decomposes this main process into major process and so on. I am ...
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How to draw an ERD without many-to-many relationship?
Consider the following scenario:
This year, 2019, the finals of the African Cup of Nations soccer tournament were hosted by Egypt. A number of countries were involved, in fact, 24 of them, even though ...
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Business forms automation options Decision
There is this situation
We have many business paper forms that needs to be turned into web based Forms with approval workflows
Well we have a small development team (2 developers) who are also ...
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Including processes that are external to the system in Use Case diagram and DFD
I am designing a system with several diagram for a project. I am trying to summarize my question with 2 simple diagram which can demonstrate my doubt. Below are my use case diagram and a context ...
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Which approach is better suited for analyzing a basic manual ongoing system? Structured Analysis or Object Oriented Analysis?
My task is to analyze a system used in our office which is based on Excel for storing data. The data is entered manually by a person.
So when we need to update or edit the data, we use Excel's ...
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If software engineering means making software for other domains when are you supposed to get the knowledge about that other domain?
I'm told that software is everywhere and therefore used in other domains. My question is if you're a software engineer working on software for lawyers or software for biologist when do you actually ...
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Consider as a single class or attribute/operation of existing class?
There are different methods for recognizing classes in UP methodology:
noun/verb analysis
using CRC analysis
using RUP stereotypes
other sources
I have read above methods fully detailed in UML 2 and ...
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Data Flow Diagram for patient information system for a hospital
I have an example for a DFD for a patient information system implemented in a certain hospital. The below figure, represents the overview diagram (level 0-diagram, if we consider that the first level ...
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