The Life Cycle Model, also known as the Software Development Life Cycle (SDLC), is a framework that describes the stages involved in the development of software from its initial feasibility study to its maintenance after deployment.

The necessities of the Life Cycle Model are:

1. **Planning and Requirement Analysis:** This is the most fundamental stage in SDLC. It is performed by the senior members of the team with inputs from all the stakeholders and domain experts in the industry. Planning for the quality assurance requirements and recognising the risks involved is also done at this stage.

2. **Defining Requirements:** Once the requirement analysis is done, the next step is to clearly define and document the product requirements and get them approved from the customer or the market analysts.

3. **Designing the Product Architecture:** Based on the requirements specified, the product architecture is designed. This phase will also help in defining the hardware and system requirements.

4. **Building or Developing the Product:** In this phase, the actual development starts and the product is built. The programming code is generated as per the design document in this phase.

5. **Testing the Product:** This stage refers to the testing only stage of the product where defects are reported, tracked, fixed and retested until the product reaches the quality standards defined in the SRS.

6. **Deployment in the Market and Maintenance:** Once the product is tested and ready to be deployed, it is released formally in the appropriate market. Sometimes product deployment happens in stages as per the business strategy of the organization. After the product is released in the market, its maintenance is done for the existing customer base.

The various issues of Software life cycle are:

1. **Requirement issues:** Often, the requirements provided by clients are not clear and this leads to misunderstandings and incorrect software development.

2. **Time and budget constraints:** Software development often exceeds the time and budget estimates which leads to incomplete functionality and poor quality of software.

3. **Technological changes:** Rapid changes in technology also pose a challenge in software development as the software might become obsolete by the time it is developed.

4. **Resource allocation:** Improper resource allocation can lead to inefficient software development.

5. **Lack of skilled personnel:** Lack of skilled personnel can lead to poor quality of software and longer development times.

6. **Maintenance issues:** Once the software is deployed, it needs to be updated and maintained regularly which can be a challenging task.

Question

The Life Cycle Model, also known as the Software Development Life Cycle (SDLC), is a framework that describes the stages involved in the development of software from its initial feasibility study to its maintenance after deployment.

The necessities of the Life Cycle Model are:

1. **Planning and Requirement Analysis:** This is the most fundamental stage in SDLC. It is performed by the senior members of the team with inputs from all the stakeholders and domain experts in the industry. Planning for the quality assurance requirements and recognising the risks involved is also done at this stage.

2. **Defining Requirements:** Once the requirement analysis is done, the next step is to clearly define and document the product requirements and get them approved from the customer or the market analysts.

3. **Designing the Product Architecture:** Based on the requirements specified, the product architecture is designed. This phase will also help in defining the hardware and system requirements.

4. **Building or Developing the Product:** In this phase, the actual development starts and the product is built. The programming code is generated as per the design document in this phase.

5. **Testing the Product:** This stage refers to the testing only stage of the product where defects are reported, tracked, fixed and retested until the product reaches the quality standards defined in the SRS.

6. **Deployment in the Market and Maintenance:** Once the product is tested and ready to be deployed, it is released formally in the appropriate market. Sometimes product deployment happens in stages as per the business strategy of the organization. After the product is released in the market, its maintenance is done for the existing customer base.

The various issues of Software life cycle are:

1. **Requirement issues:** Often, the requirements provided by clients are not clear and this leads to misunderstandings and incorrect software development.

2. **Time and budget constraints:** Software development often exceeds the time and budget estimates which leads to incomplete functionality and poor quality of software.

3. **Technological changes:** Rapid changes in technology also pose a challenge in software development as the software might become obsolete by the time it is developed.

4. **Resource allocation:** Improper resource allocation can lead to inefficient software development.

5. **Lack of skilled personnel:** Lack of skilled personnel can lead to poor quality of software and longer development times.

6. **Maintenance issues:** Once the software is deployed, it needs to be updated and maintained regularly which can be a challenging task.

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