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Qualification - OTHM Level 4 Diploma in Information Technology
Unit Name - Software Development
Unit code - R/617/2269
Unit Level - Level 4
Assignment Title - Software Development
Unit Credit - 20
Learning Outcome 1: Understand the software development lifecycle.
Answer: The Software Development Life Cycle (SDLC) is a structured process that outlines the various phases involved in developing, deploying, and maintaining a software application. It typically begins with the planning and requirements gathering phase, where the scope, objectives, and functional/non-functional requirements of the software are defined. This is followed by design, where the architectural and technical specifications are laid out, often involving system design, database design, and user interface design. Next comes implementation or coding, where developers write the actual code based on the design documents. Once the code is written, testing commences to identify and fix defects, ensuring the software meets the specified requirements and performs as expected. After successful testing, the software moves to deployment, where it is released to users or integrated into the production environment. Finally, the SDLC concludes with maintenance, an ongoing phase that involves monitoring, bug fixing, updates, and enhancements to ensure the software remains operational and effective over time. Different SDLC methodologies, such as Waterfall, Agile, Scrum, and DevOps, offer varied approaches to navigate these phases, each with its own advantages in terms of flexibility, speed, and collaboration.
Learning Outcome 2: Understand the process of software development.
Answer: The software development process is a systematic approach used to design, create, test, and maintain software applications, ensuring they meet specific requirements and quality standards. It typically begins with analysis and planning, where detailed requirements are gathered from stakeholders, project scope is defined, and resources are allocated. This is followed by design, where the software's architecture, user interface, database structure, and overall system components are meticulously planned out. Next, the development or coding phase involves writing the actual code based on the design specifications, often using various programming languages and tools. After coding, thorough testing and quality assurance are performed to identify and fix bugs, verify functionality, and ensure the software meets all defined criteria. Once the software passes rigorous testing, it moves to deployment, where it is released to end-users or integrated into a production environment. Finally, the process includes ongoing maintenance and support, involving bug fixes, updates, performance monitoring, and enhancements to ensure the software remains effective and addresses evolving user needs over its lifecycle. This iterative and often cyclical process aims to deliver high-quality, reliable, and user-centric software solutions.
Learning Outcome 3: Be able to deploy a functional business application to meet business requirements.
Answer: Deploying a functional business application to meet specific business requirements involves a critical set of steps to ensure its successful launch and operation. This process typically begins with thorough preparation, which includes finalizing the application code, conducting comprehensive testing (unit, integration, system, and user acceptance testing), and ensuring all dependencies are met. Next, environment setup is crucial; this involves provisioning the necessary servers, databases, and network configurations, whether in on-premise data centers or cloud platforms. The application's components are then packaged and configured for deployment, often using tools that automate this process to minimize errors. The actual deployment involves pushing the packaged application to the target environment, which can range from simple file transfers to complex orchestrations using CI/CD pipelines for continuous delivery. Post-deployment, validation and monitoring are essential to confirm the application is functioning correctly, performing optimally, and meeting key performance indicators (KPIs) relevant to the business requirements. Finally, establishing a robust support and maintenance framework ensures ongoing stability, addresses any issues, and allows for future enhancements, all to guarantee the application consistently serves the intended business needs.
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Aim: The aim of this unit is to introduce learners to the fundamental concepts of programming with the emphasis being laid on the whole of the software development process, to include the environment in which software is developed and the tools that assist in this process. Learners are given the choice to use a programming language of their choice.
LO1 • Algorithm definition: Writing algorithms to carry out an operation, e.g. Bubble sort.
• The relationship between algorithms and code.
• The generation process of code; the roles of the pre- processor, compiler and linker, interpreter.
• Characteristics of code: Definitions of: data types (the role of constants/variables), methods (including input/output), control structures, iteration, scope, parameter passing, classes, inheritance and events.
• Key components of an Integrated Development Environment (IDE).
• Principles of the traditional Systems Development Life
Cycle (SDLC) models, including Waterfall, Prototyping, and Spiral.
LO2 • Analyse a business-related problem and assess possible solutions: Discuss and produce a problem definition statement to highlight and describe the issues that need to be addressed.
• Research and consider possible solutions and predict the overall success of the application.
• Produce a Software Design Document: Review and discuss the value of Software Design Documents with regards to application development.
• Evaluate your possible solutions and synthesise the ideas into a single document that identifies and attempts to solve the business-related problem.
• Research and use information relating to software testing to create a suitable test plan for your business application.
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LO3 • Work as a small team to plan and prepare your business application: Peer-review and debate your development plan by effectively communicating and defending the ideas in your Software Design Document.
• Discuss differences with regards to the possible strengths and weakness of each Software Design Document.
• Modify your Software Design Document to reflect any new insights or considerations.
• Prepare and produce a functional business application: Use your Software Design Document with your preferred design and development methodology and your selected tools and techniques to develop a functional business application. Create and quality check appropriate support documents for your application.
• Undertake a critical review of the performance and development of your application against all identified factors and any adopted design and development methodologies.
• Evaluate the overall strengths and weaknesses of your business application against its Software Design Document and initial requirements. Discuss and plan in detail possible revisions (including implementation) with regard to improving your application's performance.
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Learning Outcomes- The learner will:
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Assessment Criteria- The learner can:
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1. Understand the software development lifecycle.
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1.1
1.2
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Explain the importance of each stage in traditional software lifecycle approaches. Evaluate alternative software development approaches.
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2. Understand the process
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2.1
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Evaluate software development techniques.
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of software development.
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2.2
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Evaluate the use of different software
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development tools.
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2.3
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Evaluate software testing methodologies.
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2.4
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Describe software deployment techniques.
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2.5
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Evaluate methods of reviewing system
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performance.
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3. Be able to deploy a
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3.1
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Produce a software development plan from a
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functional business
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system design.
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application to meet
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3.2
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Develop software to meet business
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business requirements.
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requirements.
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3.3
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Test and deploy software.
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3.4
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Evaluate the software against business
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requirements.
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