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System Development Approaches Assignment Paper

Compare between the THREE (3) systems development approaches, namely system development lifecycle (SDLC), prototyping and end-user development. Your explanation must include when each approach is appropriate (depending on magnitude or complexity of system being developed), what are the steps taken in each approach, what are problems associated with each approach. (17 Marks) System Development Approaches Assignment Paper
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Step-by-step
Step 1/1

System development approaches are methodologies used to design, develop, and implement software systems. The three main systems development approaches are system development lifecycle (SDLC), prototyping, and end-user development. Each approach has its own strengths and weaknesses, and the choice of approach depends on the size, complexity, and characteristics of the project, as well as the resources and expertise available.

System Development Lifecycle (SDLC): SDLC is a structured and systematic approach to software development, consisting of several phases, each with its own set of deliverables. The steps taken in each approach are:

Planning: Define project scope, goals, and objectives, and evaluate feasibility.
Analysis: Gather and analyze system requirements, identify constraints, and document the design.
Design: Create a detailed system design, including data structures, architectural diagrams, and program specifications.
Implementation: Develop, test, and integrate software modules, and deploy the system.
Maintenance: Provide ongoing support, identify and fix defects, and enhance system functionality as needed. System Development Approaches Assignment Paper

SDLC is best suited for large and complex systems where a comprehensive and structured approach is necessary. The approach is also useful in regulated industries where quality control and documentation are critical. However, the approach can be slow and inflexible, making it unsuitable for small and rapidly changing projects. Some of the problems associated with the SDLC approach are a lack of flexibility, difficulty in accommodating changes, and difficulty in estimating costs and timelines accurately.

2. Prototyping: Prototyping is an iterative approach to software development that involves creating a working model of the system to be built. The steps taken in each approach are:

Gather requirements: Identify the needs of the end-users and define project scope.
Design prototype: Create a working model of the system based on the requirements gathered.
Test prototype: Evaluate the prototype to identify any design flaws or errors.
Revise prototype: Modify the prototype based on user feedback and test again.
Deliver the final system: Once the prototype is refined, the final system can be built and delivered to end-users. System Development Approaches Assignment Paper

Prototyping is suitable for small to medium-sized projects where speed and flexibility are essential. The approach is also useful when the end-users have difficulty expressing their requirements and need to see the system in action to better understand it. However, prototyping can be expensive and time-consuming, and the final system may not be as reliable as other approaches. Problems associated with the prototyping approach include difficulty in scaling the prototype to a full system, difficulty in establishing a clear and consistent vision for the final product, and potential delays and increased costs associated with making changes to the system.

3. End-User Development: End-user development is a collaborative approach to software development where non-technical end-users take an active role in creating the system they need. The steps taken in each approach are: System Development Approaches Assignment Paper

Identify needs: End-users identify the system requirements they need to solve a problem or improve a process.
Build a prototype: End-users create a working prototype of the system using visual programming tools, spreadsheets, or other simple software tools.
Test the prototype: End-users test the prototype to identify any errors or design flaws.
Revise the prototype: End-users refine the prototype based on their testing and user feedback.
Deliver the final system: The final system is built and delivered to end-users.

End-user development is suitable for small projects where end-users have a clear understanding of the system requirements and are motivated to create their solution. The approach is also useful for customizing existing software tools to meet specific end-user needs. However, end-user development can lead to poor quality software, and end-users may not have the technical expertise to address security or scalability concerns. Some of the problems associated with the end-user development approach are a lack of technical expertise, difficulty
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Final answer

the choice of systems development approach depends on the size, complexity, and characteristics of the project, as well as the resources and expertise available. SDLC is suitable for large and complex systems that require a structured approach, prototyping is suitable for small to medium-sized projects where speed and flexibility are essential, and end-user development is suitable for small projects where end-users have a clear understanding of the system requirements and are motivated to create their solution. Each approach has its own strengths and weaknesses, and understanding these can help in making the right choice for a particular project System Development Approaches Assignment Paper

Expert Answer

System Development Approaches Assignment Paper Compare between the THREE (3) systems development approaches, namely system development lifecycle (SDLC), prototyping and end-user development. Your explanation must include when each approach is appropriate (depending on magnitude or complexity of system being developed), what are the steps taken in each approach, what are problems associated with each approach. (17 Marks) System Development Approaches Assignment Paper

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Step-by-step

Step 1/1

System development approaches are methodologies used to design, develop, and implement software systems. The three main systems development approaches are system development lifecycle (SDLC), prototyping, and end-user development. Each approach has its own strengths and weaknesses, and the choice of approach depends on the size, complexity, and characteristics of the project, as well as the resources and expertise available.

System Development Lifecycle (SDLC): SDLC is a structured and systematic approach to software development, consisting of several phases, each with its own set of deliverables. The steps taken in each approach are:

Planning: Define project scope, goals, and objectives, and evaluate feasibility.
Analysis: Gather and analyze system requirements, identify constraints, and document the design.
Design: Create a detailed system design, including data structures, architectural diagrams, and program specifications.
Implementation: Develop, test, and integrate software modules, and deploy the system.
Maintenance: Provide ongoing support, identify and fix defects, and enhance system functionality as needed. System Development Approaches Assignment Paper

SDLC is best suited for large and complex systems where a comprehensive and structured approach is necessary. The approach is also useful in regulated industries where quality control and documentation are critical. However, the approach can be slow and inflexible, making it unsuitable for small and rapidly changing projects. Some of the problems associated with the SDLC approach are a lack of flexibility, difficulty in accommodating changes, and difficulty in estimating costs and timelines accurately.

2. Prototyping: Prototyping is an iterative approach to software development that involves creating a working model of the system to be built. The steps taken in each approach are:

Gather requirements: Identify the needs of the end-users and define project scope.
Design prototype: Create a working model of the system based on the requirements gathered.
Test prototype: Evaluate the prototype to identify any design flaws or errors.
Revise prototype: Modify the prototype based on user feedback and test again.
Deliver the final system: Once the prototype is refined, the final system can be built and delivered to end-users. System Development Approaches Assignment Paper

Prototyping is suitable for small to medium-sized projects where speed and flexibility are essential. The approach is also useful when the end-users have difficulty expressing their requirements and need to see the system in action to better understand it. However, prototyping can be expensive and time-consuming, and the final system may not be as reliable as other approaches. Problems associated with the prototyping approach include difficulty in scaling the prototype to a full system, difficulty in establishing a clear and consistent vision for the final product, and potential delays and increased costs associated with making changes to the system.

3. End-User Development: End-user development is a collaborative approach to software development where non-technical end-users take an active role in creating the system they need. The steps taken in each approach are: System Development Approaches Assignment Paper

Identify needs: End-users identify the system requirements they need to solve a problem or improve a process.
Build a prototype: End-users create a working prototype of the system using visual programming tools, spreadsheets, or other simple software tools.
Test the prototype: End-users test the prototype to identify any errors or design flaws.
Revise the prototype: End-users refine the prototype based on their testing and user feedback.
Deliver the final system: The final system is built and delivered to end-users.

End-user development is suitable for small projects where end-users have a clear understanding of the system requirements and are motivated to create their solution. The approach is also useful for customizing existing software tools to meet specific end-user needs. However, end-user development can lead to poor quality software, and end-users may not have the technical expertise to address security or scalability concerns. Some of the problems associated with the end-user development approach are a lack of technical expertise, difficulty

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Final answer

the choice of systems development approach depends on the size, complexity, and characteristics of the project, as well as the resources and expertise available. SDLC is suitable for large and complex systems that require a structured approach, prototyping is suitable for small to medium-sized projects where speed and flexibility are essential, and end-user development is suitable for small projects where end-users have a clear understanding of the system requirements and are motivated to create their solution. Each approach has its own strengths and weaknesses, and understanding these can help in making the right choice for a particular project System Development Approaches Assignment Paper

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