L4M2 Exam Dumps : Defining Business Needs

Explanation

The Performance Specifications define what the system being designed must do, and not how it must do it. In this step a list of needs and wants should be created. The needs are customer requirements, while the wants are engineering desires. If a buyer adopts performance specification, the supplier will be free to choose how to make and deliver the product.

A technical specification document outlines how you’re going to address a technical problem by designing and building a solution for it.

A design specification is a detailed document providing a list of points regarding a product or pro-cess. For example, the design specification could include required dimensions, environmental fac-tors, ergonomic factors, aesthetic factors, maintenance that will be needed, etc. It may also give specific examples of how the design should be executed, helping others work properly (a guideline for what the person should do).

With conformance specification the buyer says what they want and how they want it and the supplier has to meet this

Explanation

Payback period is the time in which the initial outlay of an investment is expected to be recovered through the cash inflows generated by the investment. It is one of the simplest investment apprais-al techniques.

Since cash flow estimates are quite accurate for periods in the near future and relatively inaccurate for periods in distant future due to economic and operational uncertainties, payback period is an indicator of risk inherent in a project because it takes initial inflows into account and ignores the cash flows after the point at which the initial investment is recovered.

The formula to calculate the payback period of an investment depends on whether the periodic cash inflows from the project are even or uneven.

If the cash inflows are even (such as for investments in annuities), the formula to calculate payback period is:

Payback Period = Initial Investment / Net Cash Flow per Period

When cash inflows are uneven, we need to calculate the cumulative net cash flow for each period and then use the following formula:

Payback Period =A + (B/C)

Where,

A is the last period number with a negative cumulative cash flow;

B is the absolute value (i.e. value without negative sign) of cumulative net cash flow at the end of the period A; and

C is the total cash inflow during the period following period A

Cumulative net cash flow is the sum of inflows to date, minus the initial outflow.

Explanation

IT equipment is typically linked with through-life contracts. This type of contract not only deal with the specification and the price of a machinery, but also other stages such as design, manufacture, installation, in-service support, decommission and disposal. Among these stages, the design stage is when buyer's requirements are translated into technically correct specification.