RAD Model & Prototyping Of Software Engineering

Jul 14, 2013Download as pptx, pdf38 likes39,387 views

The document discusses the RAD model and prototyping. The RAD model is an incremental software development process where components are developed in parallel. It has four phases: requirements planning, user design, construction, and cutover. Prototyping involves creating initial versions of the system to get user feedback and evolve the design before full development. There are two types of prototypes: throwaway prototypes that are not part of the final system, and evolutionary prototypes that are iteratively improved based on user feedback.

SOFTWARE
ENGINEERING
ASIF IDRISI
18018
RAKESH PENTA 18027

RAD MODEL
WHAT IS RAD ???
 RAD model is Rapid Application Development model.
 It is a type of Incremental model.
 In RAD the Components are developed in
parallel Manner.
 It is a faster software development process.

RAD MODEL
PHASES IN RAD
 Requirements Planning phase
 User design phase
 Construction phase
 Cutover phase

RAD MODEL
1. Requirements Planning phase
 Users, managers, and IT staff members discuss on
Business needs.
 They discuss on System requirements.
 They also discuss on Project scope
 It decide who will generate software.
 It tells what software will do.

2. User design phase
RAD MODEL
 It is also called as Modeling phase.
 User Design phase is a continuous interactive process.
 During this phase, users interact with software model.
 It allows users to understand, modify the System.
 It approve a working model of the system that meets
their needs.

RAD MODEL
3. Construction phase
 Focuses on program and application development task.
 Tasks are
* Programming and application development,
* Coding,
* Unit-integration and
* System testing.

RAD MODEL
4. Cutover phase
 It is the final ( Phase ) tasks in the System Development
Life Cycle (SDLC).
 Its tasks are
* Data conversion,
* Full-scale testing,
* System change over,
* User training.
 In this phase the new system is built, and delivered.

RAD MODEL
Advantages
 RAD reduces the development time.
 Increases reusability of components.
 Greater Customer Satisfaction.
 Faster Delivery Time.
 Simple and Better Quality.

RAD MODEL
Disadvantages
 Requires highly skilled developers/designers.
 RAD is not appropriate when technical risk are high.
 Cant use for small projects.
 Absence of reusable component can lead to failure
of the project.

PROTOTYPI
NG
 A prototype is the sample implementation of the real system.
 A prototype is a toy implementation of the system.
 It shows limited and main functional capabilities of the
proposed system.
 The customer provides suggestion and improvements on the
prototype.
 A prototype is a model or a program which is not based on
strict planning.

PROTOTYPI
NG
 After a prototype is built, it is delivered to the customer
for the evaluation.
 It helps the customer determine how the feature will
function in the final software.
 It is a very useful technique to obtain accurate
requirements of the system.

PROTOTYPI
NG
TYPES OF PROTOTYPE
1 Throwaway prototypes
2 Evolutionary Prototypes

PROTOTYPI
NG
Throwaway Prototypes
 Prototype developed as part of a throw-away approach.
 It will not form part of the final solution.
 It is a useful way of exploring ideas, and gaining
feedback from user.

PROTOTYPI
NG
Evolutionary Prototypes
 It is initial prototype is presented to user.
 They Provide feedback and suggestion for improvement.
 Each stage of this prototype evolves toward the final
system hence it is called as Evolutionary Prototype

PROTOTYPI
NG
Advantage
 Users are actively involved in the development.
 Errors can be detected much earlier.
 Missing functionality can be identified easily.
 It reduces risk of failure.

PROTOTYPI
NG
Disadvantage
 It is a slow process.
 It is not complete model.
 It is time consuming model.
 It should be developed or built on company's cost.

RAD Model & Prototyping Of Software Engineering

What is Waterfall Model? History of waterfall model, Advantages, Disadvantages and much more realted to waterfall model. The waterfall model is the basic and simple software development life cycle model. But idealistic. Earlier the waterfall model was very popular but these days it is not used while software development. And the model was divided into phases and all the phases are organized in linear order. This model was first introduced by Dr. Winston in 1970. This model is very popular and very important because all the models in software development life cycle models are based on it. So, we can call it, It is the base of all software development life cycle models or it is known as Classical Waterfall Model.

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Design Concept software engineeringDarshit Metaliya

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RAD Model & Prototyping Of Software Engineering

1. SOFTWARE ENGINEERING ASIF IDRISI 18018 RAKESH PENTA 18027

2. TOPIC RAD MODEL & PROTOTYPING

3. RAD MODEL WHAT IS RAD ???  RAD model is Rapid Application Development model.  It is a type of Incremental model.  In RAD the Components are developed in parallel Manner.  It is a faster software development process.

4. RAD MODEL PHASES IN RAD  Requirements Planning phase  User design phase  Construction phase  Cutover phase

5. RAD MODEL 1. Requirements Planning phase  Users, managers, and IT staff members discuss on Business needs.  They discuss on System requirements.  They also discuss on Project scope  It decide who will generate software.  It tells what software will do.

6. 2. User design phase RAD MODEL  It is also called as Modeling phase.  User Design phase is a continuous interactive process.  During this phase, users interact with software model.  It allows users to understand, modify the System.  It approve a working model of the system that meets their needs.

7. RAD MODEL 3. Construction phase  Focuses on program and application development task.  Tasks are * Programming and application development, * Coding, * Unit-integration and * System testing.

8. RAD MODEL 4. Cutover phase  It is the final ( Phase ) tasks in the System Development Life Cycle (SDLC).  Its tasks are * Data conversion, * Full-scale testing, * System change over, * User training.  In this phase the new system is built, and delivered.

9. RAD MODEL Diagram

10. RAD MODEL Advantages  RAD reduces the development time.  Increases reusability of components.  Greater Customer Satisfaction.  Faster Delivery Time.  Simple and Better Quality.

11. RAD MODEL Disadvantages  Requires highly skilled developers/designers.  RAD is not appropriate when technical risk are high.  Cant use for small projects.  Absence of reusable component can lead to failure of the project.

12. PROTOTYPING

13. PROTOTYPI NG  A prototype is the sample implementation of the real system.  A prototype is a toy implementation of the system.  It shows limited and main functional capabilities of the proposed system.  The customer provides suggestion and improvements on the prototype.  A prototype is a model or a program which is not based on strict planning.

14. PROTOTYPI NG  After a prototype is built, it is delivered to the customer for the evaluation.  It helps the customer determine how the feature will function in the final software.  It is a very useful technique to obtain accurate requirements of the system.

15. PROTOTYPI NG TYPES OF PROTOTYPE 1 Throwaway prototypes 2 Evolutionary Prototypes

16. PROTOTYPI NG Throwaway Prototypes  Prototype developed as part of a throw-away approach.  It will not form part of the final solution.  It is a useful way of exploring ideas, and gaining feedback from user.

17. PROTOTYPI NG Evolutionary Prototypes  It is initial prototype is presented to user.  They Provide feedback and suggestion for improvement.  Each stage of this prototype evolves toward the final system hence it is called as Evolutionary Prototype

18. PROTOTYPI NG Diagram

19. PROTOTYPI NG Advantage  Users are actively involved in the development.  Errors can be detected much earlier.  Missing functionality can be identified easily.  It reduces risk of failure.

20. PROTOTYPI NG Disadvantage  It is a slow process.  It is not complete model.  It is time consuming model.  It should be developed or built on company's cost.

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