Why spiral model is known as risk driven process model justify this statement?

Asked by: Jessica Schleicher

Spiral Model can be pretty costly to use and doesn’t work well for small projects. It’s a risk-driven model which means that the overall success of a project highly depends on the risks analysis phase. Risk analysis requires specific expertise on every iteration.

Which statement is true about the spiral model?

Detailed Solution



The correct answer is option 4: In Spiral Model: the primary determinant in selecting activities in each iteration is risk.

Why spiral model is called a controlled model?

The spiral model, initially proposed by Boehm, is an evolutionary software process model that couples the iterative feature of prototyping with the controlled and systematic aspects of the linear sequential model. It implements the potential for rapid development of new versions of the software.

What is risk-driven model?

The Risk-Driven Model guides developers to do just enough architecture by identifying their project’s most pressing risks and applying only architecture and design techniques that mitigate them. The key element of the Risk- Driven Model is the promotion of risk to prominence.

Which model is best suitable for risk management *?

One of the best-known models, which is particularly oriented to risk reduction, is the so-called spiral model from 1986. What is the spiral model?

What is risk in spiral model?

A risk is any adverse situation that might affect the successful completion of a software project. The most important feature of the spiral model is handling these unknown risks after the project has started. Such risk resolutions are easier done by developing a prototype.

What is risk analysis in spiral model?

Risk Analysis: In the risk analysis phase, a process is undertaken to identify risk and alternate solutions. A prototype is produced at the end of the risk analysis phase. If any risk is found during the risk analysis then alternate solutions are suggested and implemented.

Which is the most important feature of spiral model Quality management risk management Performance management Efficiency management?

Risk management is the most important feature of spiral model – Process Modelling and SDLC.

Which model is useful to guide the risk in the project?

The Project Risk Analysis Model (PRAM) uses Monte Carlo simulation to generate cost and schedule probability distributions from user input cost, schedule, risk and uncertainty information. It produces quantitative risk analysis outputs that provide actionable information to project managers and teams.

What is the spiral model?

Definition: The spiral model is similar to the incremental development for a system, with more emphasis placed on risk analysis. The spiral model has four phases: Planning, Design, Construct and Evaluation. A software project repeatedly passes through these phases in iterations (called Spirals in this model).

How does a spiral work?

So it ends up that a football will travel slightly to the right of a right-handed quarterback throws it and it goes slightly to a left if a left-handed quarterback throws.

What does spiral symbolize?

Many suggest the spirals are representative of the cycle of rebirth (as indicated by their presence at a tomb) or as a symbol of a mother goddess, who in recent times has been strongly associated with underground chambers, which are interpreted as symbolic wombs.

Why is it important to throw a spiral?

When a player throws a football, the ball balances energy from the throw and the gravitational forces acting on it. When a spiral is added, it helps combat the gravitational forces acting on it, keeping its path more direct.

Where do the spirals come from?

Spirals exist only among flattened or ‘disk’ galaxies. These galaxies are differentially rotating–that is, the time to complete a full rotation increases with distance from the center. Differential rotation causes any disturbance in the disk to wind up into a spiral form.

Which statement describes a characteristic of a spiral galaxy?

Answer: It is shaped like a pinwheel. Explanation: That’s the shape of spiral galaxy.

Which of the following are features that can be found in a spiral galaxy?

Most spiral galaxies contain a central bulge surrounded by a flat, rotating disk of stars. The bulge in the center is made up of older, dimmer stars, and is thought to contain a supermassive black hole. Approximately two-thirds of spiral galaxies also contain a bar structure through their center, as does the Milky Way.

Why do spiral galaxies rotate?

Their rapid spin is a result of sitting within an extraordinarily massive cloud, or halo, of dark matter – invisible matter detectable only through its gravity. The largest “super spiral” studied here resides in a dark matter halo weighing at least 40 trillion times the mass of our Sun.

How do spiral galaxies keep their shape?

The Milky Way and many galaxies are spirals. To keep the spiral, the outer stars must move faster than the inner stars. From Issac Newton on, we have known that the father a star is from the center, the slower it must travel.

Which of the following models best explains why our galaxy has spiral arms?

Which of the following models best explains why our galaxy has spiral arms? The spiral arms are a wave of star formation caused by wave of density propagating outward through the disk of the galaxy.

Why is everything in the universe spinning?

Regardless of whether it spins clockwise or counterclockwise, everything in the universe moves and spins: From small asteroids to entire galaxies. Gravity, momentum, inertia ensure that bodies big and small act upon each other, causing everything to move and spin.

What if Earth stopped spinning?

If Earth were to stop spinning but continue to orbit the sun, a “day” would last half a year, and so would the night. It could warm up much more during the day and cool down much more during the night. This would affect the climate on Earth.

Is the sun spinning?

The Sun rotates on its axis once in about 27 days. This rotation was first detected by observing the motion of sunspots. The Sun’s rotation axis is tilted by about 7.25 degrees from the axis of the Earth’s orbit so we see more of the Sun’s north pole in September of each year and more of its south pole in March.