Explanation
Value Analysis (VA) is concerned with existing products. It involves a current product being ana-lysed and evaluated by a team, to reduce costs, improve product function or both. Value Analysis exercises use a plan which step-by-step, methodically evaluates the product in a range of areas. These include costs, function, alternative components and design aspects such as ease of manufac-ture and assembly.
According to the Value Methodology standard, there are 6 phases to a Value Analysis:
- Information
- Function Analysis
- Creative
- Evaluation
- Development
- Presentation
1. Information
In this first phase, the team attempts to understand why the project exists and who or what it is to produce. They obtain project data, present the original design or product concepts, and understand the project scope. Schedule, costs, budget, risk, and other non-monetary issues are studied until the team is comfortable with the concept of the project, what it is to produce, and who its end users are.
This step also includes things like site visits and meetings with the project team, if required. Project documents like plans, drawings, specifications, and reports are obtained and the value engineering team becomes familiar with them.
2. Function Analysis
This step represents the meat and potatoes (core) of the value analysis. The team attempts to determine the functions the project serves. Functions come in two forms:
- Primary functions are those that represent the reason for the project’s existence, for example, a building project might have adequate plumbing as a primary function.
- Secondary functions are those that the project serves without being core to the project. For example, a building project might have as a secondary function maintaining the view of the neighboring building.
The functions are described in verb/noun pairs, such as “supply water to all suites,†or “Maintain view of adjacent park.†For a project like this, the team should come up with 10 – 15 functions. You might be surprised how many secondary functions exist for most projects. Subject matter experts would be a great resource, but in their absence an appropriate level of brainstorming and analysis are necessary.
The team should also identify value-mismatched functions to focus the improvements on. For ex-ample, maybe a large obstruction is preventing the view of the adjacent park from too many suites resulting in a potential mismatch of the cost vs. functional benefit. This is investigated in the next step.
3. Creative
This phase represents the generation of improvement ideas. The team develops alternative ways that the project can perform the functions that have been identified. At this step, the functions are looked at individually and each one gets a list of alternative ways to perform the function. There is no judging between the importance of the various functions.
4. Evaluation
At this stage, a priority is given to each project improvement idea. The ideas are discussed and potential costs are determined. Once the risk-reward profile of each idea is itemized, the team has determined which ideas are worth implementing into the project or feature.
A few years ago, there was a pedestrian bridge built near my home which was originally designed for emergency vehicles. Although this type of design is standard practice for the bridges of this type, the value engineering team identified that emergency vehicle passage was not needed (verb/noun pair = ‘maintain passage for emergency vehicles‘). Also, a second major outcome of this value analysis was to change the design to an aesthetic, curved bridge because it was in a prominent location. The redesign of the bridge cost some money but this was more than made up by the cost of the bridge construction. Thus, the value analysis paid for itself about 10 times over in the reduced construction cost, and the bridge was significantly more aesthetic.
5. Development
Once the value improvement options have been whittled down to the ones that make sense, the value engineering team develop the options to the point of passing them back to the original project team. They must be clearly written and explained so that the project owner and stakeholders can understand how it benefits the project and act on it. Any potential negative factors are identified. Potential costs and cost savings are itemized.
6. Presentation
This last phase represents the presentation of the alternatives to the stakeholders. Often value engineering represents a change in the normal practices that people are used to, an “out of the box thinking.†Thus the best salesperson on the team is often the best one to do the presentation.
Some typical products of a value engineering analysis are a briefing document, risk analy-sis, present worth analysis, advantages vs. disadvantages, etc.
