Risk Analysis Based on Customer Reaction

Go/No Go Decision

Customer Evaluation

Toward a Completed . Initial £ nil warft

Another version, a modified view of the spiral model from the Software Productivity Consortium, may be seen inFigure 4-16.

Figure 4-16. A Modified View of the Spiral Model

Source: Software Productivity Consortium.

When to Use the Spiral Model

A project manager may feel confident that the spiral model is appropriate when several of the following conditions are met: • When the creation of a prototype is the appropriate type of product development;

® When it is important to communicate how costs will be increasing and to evaluate the project for costs during the risk quadrant activities;

® When organizations have the skills to tailor the model; ® For projects that represent a medium to high risk;

® When it is unwise to commit to a long-term project due to potential changes in economic priorities, and when these uncertainties may limit the available time frame;

® When the technology is new and tests of basic concepts are required;

® When users are unsure of their needs;

® When requirements are complex;

® For a new function or product line;

® When significant changes are expected, as with research or exploration;

® When it is important to focus on stable or known parts while gathering knowledge about changing parts; ® For large projects;

® For organizations that cannot afford to allocate all the necessary project money up-front, without getting some back along the way;

® On long projects that may make managers or customers nervous;

® When benefits are uncertain and success is not guaranteed;

® To demonstrate quality and attainment of objectives in short period of time;

® When new technologies are being employed, such as first-time object-oriented approaches;

® Wth computation-intensive systems, such as decision support systems;

® Wth business projects as well as aerospace, defense, and engineering projects, where the spiral model already enjoys popular use.

Project Management Made Easy

Project Management Made Easy

What you need to know about… Project Management Made Easy! Project management consists of more than just a large building project and can encompass small projects as well. No matter what the size of your project, you need to have some sort of project management. How you manage your project has everything to do with its outcome.

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