A Design concept Refinement is a :
All of the above
Stepwise refinement, proposed by Wirth, starts from a high-level statement of function and elaborates it step by step into lower-level detail.
It is therefore a top-down strategy and a process of elaboration.
Pressman notes that abstraction and refinement are complementary: abstraction hides low-level detail, while refinement reveals it as design proceeds.
Since all three descriptions hold, refinement is all of them.
Hence, All of the above.
Similar Questions
As compared to rental and leasing methods to acquire computer systems for a Management Information System (MIS), purchase method has following advantage :
Which of the following is not a software process model ?
Match the following for methods of MIS development :
List - I List - II (a) Joint Application Design (JAD) (i) Delivers functionality in rapid iteration measured in weeks and needs frequent communication, development, testing and delivery (b) Computer Aided Software Engg (ii) Reusable applications generally with one specific function. It is closely linked with idea of web services and service oriented architecture. (c) Agile development (iii) Tools to automate many tasks of SDLC (d) Component based technology (iv) A group based tool for collecting user requirements and creating system design. Mostly used in analysis and design stages of SDLC Codes :
A software design is highly modular if :
Which one from the following is highly associated activity of project planning ?
Cohesion is an extension of :
_______ of a system is the structure or structures of the system which comprise software elements, the externally visible properties of these elements and the relationship amongst them.
Which one of the following is not a risk management technique for managing the risk due to unrealistic schedules and budgets ?
Match List - I with List - II.
List - I (software design principles) List - II (Definition) (A) Cohesion (I) Degree to which one module relies on another module. (B) Coupling (II) Dividing a software system into distinct modules. (C) Abstration (III) Degree to which elements of a module belong together. (D) Modularity (IV) Simplifying complex reality by modeling classes appropriate to the problem. Choose the correct answer from the options given below :
Which of the following are Agile Process Models ?
(A) Extreme Programming (XP)
(B) Waterfall
(C) Scrum
(D) Spiral
(E) Incremental
Choose the correct answer from the options given below :
Important Questions from Software Development Models
A simple stand - alone software utility is to be developed in ’C’ programming by a team of software experts for a computer running Linux and the overall size of this software is estimated to be 20,000 lines of code. Considering (a, b) = (2.4, 1.05) as multiplicative and exponention factor for the basic COCOMO effort estimation equation and (c, d)=(2.5, 0.38) as multiplicative and exponention factor for the basic COCOMO development time estimation equation, approximately how long does the software project take to complete ?
In ______ model, software is developed in a series of incremental releases.
In _______ model, software is developed in a series of incremental releases.
I. Spiral
II. Sequential
Among the following, which option describes a functional requirement?
A software development firm is planning a new project involving a data analytics tool. The project is estimated to have $25000$ lines of code. Using the basic COCOMO model, the firm wants to estimate the effort in person-months. For this project type, the multiplicative factor is given as $2.8$, and the exponentiation factor is $1.2$. What is the estimated effort in person-months?
