What is system life cycle and its importance?
It is important to have an SDLC in place as it helps to transform the idea of a project into a functional and completely operational structure. In addition to covering the technical aspects of system development, SDLC helps with process development, change management, user experience, and policies.
What are the advantages of system development life cycle?
Iterative SDLC Model
| ADVANTAGES | DISADVANTAGES |
|---|---|
| It is easier to control the risks as high-risk tasks are completed first | The process is difficult to manage |
| Problems and risks defined within one iteration can be prevented in the next sprints | The risks may not be completely determined even at the final stage of the project |
What are the stages of system development?
There are usually six stages in this cycle: requirement analysis, design, development and testing, implementation, documentation, and evaluation.
What is systems development process?
Systems development is the process of defining, designing, testing, and implementing a new software application or program. It could include the internal development of customized systems, the creation of database systems, or the acquisition of third party developed software.
What is the role of software development life cycle in developing systems?
An effective System Development Life Cycle (SDLC) should result in a high quality system that meets customer expectations, reaches completion within time and cost evaluations, and works effectively and efficiently in the current and planned Information Technology infrastructure.
What is the difference between software development life cycle and system development life cycle?
The software development life cycle focuses exclusively on software components, such as development planning, technical architecture, software quality testing and the actual deployment of the software. Put simply, the system development life cycle is more holistic and comprehensive.
What are the four phases of RAD software development?
2) What are the four phases of RAD software development? Requirements development, construction, cutover and maintenance.
What is a RAD model?
Definition: The Rapid Application Development (or RAD) model is based on prototyping and iterative model with no (or less) specific planning. In general, RAD approach to software development means putting lesser emphasis on planning tasks and more emphasis on development and coming up with a prototype.
What are the three phases of RAD?
There are three broad phases to RAD that engage both users and analysts in assessment, design, and implementation. Figure illustrated below depicts these three phases.
What is the major drawback of using RAD model *?
What is the major drawback of using RAD Model? Explanation: The client may create an unrealistic product vision leading a team to over or under-develop functionality. Also, the specialized & skilled developers are not easily available.
What is the major drawback of core?
What is the major drawback of CORE ? Explanation: In CORE the requirement specification are put together by all users, customers and analysts, so a passive analyst will not get the requirements properly.
What is the main aim of software engineering?
Discussion Forum
| Que. | What is the main aim of Software engineering? |
|---|---|
| b. | Cost effective software |
| c. | Reliable and cost effective software |
| d. | None of the above |
| Answer:Reliable and cost effective software |
Which tool is use for structured designing?
Discussion Forum
| Que. | Which tool is use for structured designing ? |
|---|---|
| b. | Structure chart |
| c. | Data-flow diagram |
| d. | Module |
| Answer:Structure chart |
What is a design objective?
Design objectives are the functional and non-functional qualities of a design. These are often stated as goals for what a design is meant to achieve. Objectives serve to guide the design process and measure your results.
What are the types of requirements?
The main types of requirements are:
- Functional Requirements.
- Performance Requirements.
- System Technical Requirements.
- Specifications.
What is the fundamental goal of software design?
Objectives of Software Design Correctness:Software design should be correct as per requirement. Completeness:The design should have all components like data structures, modules, and external interfaces, etc. Efficiency:Resources should be used efficiently by the program. Flexibility:Able to modify on changing needs.
What are the two main goals of computer program design?
So, one of the goals of a science of software design should be: To allow us to write software that is as helpful as possible. Secondly, we usually want people to keep on being helped by our software.
What are the goals of system software?
Answer. Explanation: Convenience : the primary goals of os is to make computer system easier for user i.e. os makes interaction b/w user and hardware. Efficient : the secondary gole of os is to allocate the system resources to various applications program as efficient as possible.
What are the basic issues in software design?
2 Key Issues in Software Design
- 2.1 Concurrency. [5, c18]
- 2.2 Control and Handling of Events. [5, c21]
- 2.3 Data Persistence. [12, c9]
- 2.4 Distribution of Components. [5, c18]
- 2.5 Error and Exception Handling and Fault Tolerance. [5, c18]
- 2.6 Interaction and Presentation. [5, c16]
- 2.7 Security. [5, c12, c18] [3, c4]
How can I design a software?
If your design is well thought out, the program practically writes itself; typing it in becomes almost an afterthought to the whole process.
- Step 1: Define the Output and Data Flows.
- Step 2: Develop the Logic.
- Step 3: Writing the Code.
What are system design issues?
The important issues related to Operating system are transparency, flexibility, reliability, performance, scalability, naming, replication, synchronization, security. Let us understand the Different Types of Advanced Operating Systems to understand the Major Design Issues better.
What is good enough software?
The principle of good enough or “good enough” principle is a rule in software and systems design. It indicates that consumers will use products that are good enough for their requirements, despite the availability of more advanced technology.
What’s another word for good enough?
What is another word for good enough?
| adequate | satisfactory |
|---|---|
| passable | sufficient |
| presentable | all right |
| acceptable | OK |
| fair | decent |
What does cost of quality contain in software engineering?
Definition by ISTQB: cost of quality: The total costs incurred on quality activities and issues and often split into prevention costs, appraisal costs, internal failure costs and external failure costs. The Cost of Quality includes prevention, appraisal, and correction or repair costs.
What is concurrency in software engineering?
Concurrency in software engineering means the collection of techniques and mechanisms that enable a computer program to perform several different tasks simultaneously, or apparently simultaneously. To achieve this, new features needed to be added to both hardware and software.
What is concurrency example?
Concurrency is the tendency for things to happen at the same time in a system. Figure 1: Example of concurrency at work: parallel activities that do not interact have simple concurrency issues. It is when parallel activities interact or share the same resources that concurrency issues become important.