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Lets Start ..... With Design Phase 


The First Step to write 

  1. Introduction of Design Document

<Write here in detail about what you have included in this document and also write about the benefits and purpose of this phase in a software development project >

  1. Entity Relationship Diagram (ERD)
  2. Sequence Diagrams
  3. Architecture Design Diagram        
  1. Class Diagram                                                
  2. Database Design
  3. Interface Design
  4. Test Cases 
  5. In tamam ki List likhni hay or in ki detail btani hay in kay purpose and crons and prons means advantages and disadvantages ..... 

good effort

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Friends Lets Start With ER Diagram ...!!!

ER Diagram Symbols and Notations

Elements found in ER diagrams

Elements in ER diagrams

Tips on How to Draw ER Diagrams

Because ER diagrams are simple enough to understand, just about anyone can create them. However, two different ER diagrams describing the same system may still be radically different in terms of their simplicity, completeness, and efficiency at communicating the system. In other words, there are good ER diagrams and there are poor ones.

Because this ER tutorial focuses on beginners below are some tips that will help you build effective ER diagrams:

  1. Identify all the relevant entities in a given system and determine the relationships among these entities.
  2. An entity should appear only once in a particular diagram.
  3. Provide a precise and appropriate name for each entity, attribute, and relationship in the diagram. Terms that are simple and familiar always beats vague, technical-sounding words. In naming entities, remember to use singular nouns. However, adjectives may be used to distinguish entities belonging to the same class (part-time employee and full time employee, for example). Meanwhile attribute names must be meaningful, unique, system-independent, and easily understandable.
  4. Remove vague, redundant or unnecessary relationships between entities.
  5. Never connect a relationship to another relationship.
  6. Make effective use of colors. You can use colors to classify similar entities or to highlight key areas in your diagrams.

You can draw entity relationship diagrams manually, especially when you are just informally showing simple systems to your peers. However, for more complex systems and for external audiences, you need diagramming software such as Creately’s to craft visually engaging and precise ER diagrams. The ER diagram software offered by Creately as an online service is pretty easy to use and is a lot more affordable than purchasing licensed software. It is also perfectly suited for development teams because of its strong support for collaboration.


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